Äcdocutils.nodes document q)Åq}q(U nametypesq}q(X���what premis suggestsqNXX���requirement 7: record provenance information (e.g., prinicpal, timestamp, event, rights)qNX���descriptionqNX5���requirement 1: perform replication on digital objectsq NX���introductionq NXV���requirement 6: record software and hardware specifications for future object renderingqNX ���discussionqNX6���getting a handle on systems metadata for the long haulq NX ���conclusionqNX,���requirement 5: support digital object re-useqNX/���requirement 4: support digital object discoveryqNX���system metadata requirementsqNXJ���requirement 8: record information to ensure viability of preserved objectsqNX"���dataone use cases and requirementsqNX ���referencesqNX-���requirement 2: perform preservation migrationqNXE���requirement 3: record specific types of relationships between objectsqNX8���requirement 10: ensure that principals are authenticatedqNXM���requirement 9: record information to ensure authenticity of preserved objectsqNX���what bagit and oai-ore provideqNuUsubstitution_defsq}qUparse_messagesq]q(cdocutils.nodes system_message q)Åq}q (U rawsourceq!U�Uparentq"cdocutils.nodes section q#)Åq$}q%(h!U�U referencedq&Kh"h#)Åq'}q((h!U�h"h#)Åq)}q*(h!U�h"h#)Åq+}q,(h!U�h"hUsourceq-Xr���/var/lib/jenkins/jobs/API_Documentation_trunk/workspace/api-documentation/source/design/SystemMetadataAnalysis.txtq.Utagnameq/Usectionq0U attributesq1}q2(Udupnamesq3]Uclassesq4]Ubackrefsq5]Uidsq6]q7U6getting-a-handle-on-systems-metadata-for-the-long-haulq8aUnamesq9]q:h auUlineq;KUdocumentq<hUchildrenq=]q>(cdocutils.nodes title q?)Åq@}qA(h!X6���Getting a Handle on Systems Metadata for the Long HaulqBh"h+h-h.h/UtitleqCh1}qD(h3]h4]h5]h6]h9]uh;Kh<hh=]qEcdocutils.nodes Text qFX6���Getting a Handle on Systems Metadata for the Long HaulqGÖÅqH}qI(h!hBh"h@ubaubcdocutils.nodes field_list qJ)ÅqK}qL(h!U�h"h+h-h.h/U field_listqMh1}qN(h3]h4]h5]h6]h9]uh;Kh<hh=]qOcdocutils.nodes field qP)ÅqQ}qR(h!U�h"hKh-h.h/UfieldqSh1}qT(h3]h4]h5]h6]h9]uh;Kh<hh=]qU(cdocutils.nodes field_name qV)ÅqW}qX(h!X ���RevisionsqYh"hQh-h.h/U field_nameqZh1}q[(h3]h4]h5]h6]h9]uh;K�h=]q\hFX ���Revisionsq]ÖÅq^}q_(h!hYh"hWubaubcdocutils.nodes field_body q`)Åqa}qb(h!X°��======== ============================================================ Date Comment ======== ============================================================ 20100416 (Sandusky) Additional text; discussions of PREMIS, BagIt, ORE 20100402 (Allen, Sandusky) Additional text 20100326 (Allen) Added more text and structure 20100312 (Allen) First draft ======== ============================================================ h1}qc(h3]h4]h5]h6]h9]uh"hQh=]qdcdocutils.nodes table qe)Åqf}qg(h!U�h1}qh(h3]h4]h5]h6]h9]uh"hah=]qicdocutils.nodes tgroup qj)Åqk}ql(h!U�h1}qm(h6]h5]h3]h4]h9]UcolsKuh"hfh=]qn(cdocutils.nodes colspec qo)Åqp}qq(h!U�h1}qr(h6]h5]h3]h4]h9]UcolwidthKuh"hkh=]h/Ucolspecqsubho)Åqt}qu(h!U�h1}qv(h6]h5]h3]h4]h9]UcolwidthK=uh"hkh=]h/hsubcdocutils.nodes thead qw)Åqx}qy(h!U�h1}qz(h3]h4]h5]h6]h9]uh"hkh=]q{cdocutils.nodes row q|)Åq}}q~(h!U�h1}q(h3]h4]h5]h6]h9]uh"hxh=]qÄ(cdocutils.nodes entry qÅ)ÅqÇ}qÉ(h!U�h1}qÑ(h3]h4]h5]h6]h9]uh"h}h=]qÖcdocutils.nodes paragraph qÜ)Åqá}qà(h!X���Dateqâh"hÇh-h.h/U paragraphqäh1}qã(h3]h4]h5]h6]h9]uh;Kh=]qåhFX���DateqçÖÅqé}qè(h!hâh"háubaubah/UentryqêubhÅ)Åqë}qí(h!U�h1}qì(h3]h4]h5]h6]h9]uh"h}h=]qîhÜ)Åqï}qñ(h!X���Commentqóh"hëh-h.h/häh1}qò(h3]h4]h5]h6]h9]uh;Kh=]qôhFX���CommentqöÖÅqõ}qú(h!hóh"hïubaubah/hêubeh/Urowqùubah/Utheadqûubcdocutils.nodes tbody qü)Åq†}q°(h!U�h1}q¢(h3]h4]h5]h6]h9]uh"hkh=]q£(h|)Åq§}q•(h!U�h1}q¶(h3]h4]h5]h6]h9]uh"h†h=]qß(hÅ)Åq®}q©(h!U�h1}q™(h3]h4]h5]h6]h9]uh"h§h=]q´hÜ)Åq¨}q≠(h!X���20100416qÆh"h®h-h.h/häh1}qØ(h3]h4]h5]h6]h9]uh;Kh=]q∞hFX���20100416q±ÖÅq≤}q≥(h!hÆh"h¨ubaubah/hêubhÅ)Åq¥}qµ(h!U�h1}q∂(h3]h4]h5]h6]h9]uh"h§h=]q∑hÜ)Åq∏}qπ(h!X=���(Sandusky) Additional text; discussions of PREMIS, BagIt, OREq∫h"h¥h-h.h/häh1}qª(h3]h4]h5]h6]h9]uh;Kh=]qºhFX=���(Sandusky) Additional text; discussions of PREMIS, BagIt, OREqΩÖÅqæ}qø(h!h∫h"h∏ubaubah/hêubeh/hùubh|)Åq¿}q¡(h!U�h1}q¬(h3]h4]h5]h6]h9]uh"h†h=]q√(hÅ)Åqƒ}q≈(h!U�h1}q∆(h3]h4]h5]h6]h9]uh"h¿h=]q«hÜ)Åq»}q…(h!X���20100402q h"hƒh-h.h/häh1}qÀ(h3]h4]h5]h6]h9]uh;K h=]qÃhFX���20100402qÕÖÅqŒ}qœ(h!h h"h»ubaubah/hêubhÅ)Åq–}q—(h!U�h1}q“(h3]h4]h5]h6]h9]uh"h¿h=]q”hÜ)Åq‘}q’(h!X!���(Allen, Sandusky) Additional textq÷h"h–h-h.h/häh1}q◊(h3]h4]h5]h6]h9]uh;K h=]qÿhFX!���(Allen, Sandusky) Additional textqŸÖÅq⁄}q€(h!h÷h"h‘ubaubah/hêubeh/hùubh|)Åq‹}q›(h!U�h1}qfi(h3]h4]h5]h6]h9]uh"h†h=]qfl(hÅ)Åq‡}q·(h!U�h1}q‚(h3]h4]h5]h6]h9]uh"h‹h=]q„hÜ)Åq‰}qÂ(h!X���20100326qÊh"h‡h-h.h/häh1}qÁ(h3]h4]h5]h6]h9]uh;K h=]qËhFX���20100326qÈÖÅqÍ}qÎ(h!hÊh"h‰ubaubah/hêubhÅ)ÅqÏ}qÌ(h!U�h1}qÓ(h3]h4]h5]h6]h9]uh"h‹h=]qÔhÜ)Åq}qÒ(h!X%���(Allen) Added more text and structureqÚh"hÏh-h.h/häh1}qÛ(h3]h4]h5]h6]h9]uh;K h=]qÙhFX%���(Allen) Added more text and structureqıÖÅqˆ}q˜(h!hÚh"hubaubah/hêubeh/hùubh|)Åq¯}q˘(h!U�h1}q˙(h3]h4]h5]h6]h9]uh"h†h=]q˚(hÅ)Åq¸}q˝(h!U�h1}q˛(h3]h4]h5]h6]h9]uh"h¯h=]qˇhÜ)År���}r��(h!X���20100312r��h"h¸h-h.h/häh1}r��(h3]h4]h5]h6]h9]uh;Kh=]r��hFX���20100312r��ÖÅr��}r��(h!j��h"j���ubaubah/hêubhÅ)År��}r ��(h!U�h1}r ��(h3]h4]h5]h6]h9]uh"h¯h=]r��hÜ)År��}r ��(h!X���(Allen) First draftr��h"j��h-h.h/häh1}r��(h3]h4]h5]h6]h9]uh;Kh=]r��hFX���(Allen) First draftr��ÖÅr��}r��(h!j��h"j��ubaubah/hêubeh/hùubeh/Utbodyr��ubeh/Utgroupr��ubah/Utabler��ubah/U field_bodyr��ubeubaubh#)År��}r��(h!U�h"h+h-h.h/h0h1}r��(h3]h4]h5]h6]r��Uintroductionr��ah9]r��h auh;Kh<hh=]r��(h?)År��}r ��(h!X���Introductionr!��h"j��h-h.h/hCh1}r"��(h3]h4]h5]h6]h9]uh;Kh<hh=]r#��hFX���Introductionr$��ÖÅr%��}r&��(h!j!��h"j��ubaubhÜ)År'��}r(��(h!Xë��The DataONE systems metadata is critical to ensuring that science data, science metadata, and other digital objects stored in DataONE are discoverable, accessible, auditable, verifiable, and are associated with meaningful related digital objects. Digital objects in DataONE must also be viable for the long term - for many decades - and so the system metadata must also include provenance information.r)��h"j��h-h.h/häh1}r*��(h3]h4]h5]h6]h9]uh;Kh<hh=]r+��hFXë��The DataONE systems metadata is critical to ensuring that science data, science metadata, and other digital objects stored in DataONE are discoverable, accessible, auditable, verifiable, and are associated with meaningful related digital objects. Digital objects in DataONE must also be viable for the long term - for many decades - and so the system metadata must also include provenance information.r,��ÖÅr-��}r.��(h!j)��h"j'��ubaubhÜ)År/��}r0��(h!Xh��Due primarily to the project deliverable schedule, the current DataONE system metadata definition (DataONE, 2010b) is focused on the essential metadata values that must be available to support the earliest versions of DataONE. So far, relatively little attention has been paid to ensuring that system metadata contains appropriate attributes for the long haul.r1��h"j��h-h.h/häh1}r2��(h3]h4]h5]h6]h9]uh;Kh<hh=]r3��hFXh��Due primarily to the project deliverable schedule, the current DataONE system metadata definition (DataONE, 2010b) is focused on the essential metadata values that must be available to support the earliest versions of DataONE. So far, relatively little attention has been paid to ensuring that system metadata contains appropriate attributes for the long haul.r4��ÖÅr5��}r6��(h!j1��h"j/��ubaubhÜ)År7��}r8��(h!XK��This document describes some of the results of a practicum project carried out by Elizabeth (Betsy) Allen in Spring 2010. The PREMIS Data Dictionary for Preservation Metadata was used as a standard against which the explicit and implicit requirements of DataONE would be measured: "The PREMIS Data Dictionary defines 'preservation metadata' as the information a repository usees to support the digital preservation process" (PREMIS Editorial Committee, 2008, p.3). PREMIS is focused on the "viabilility, renderability, understandability, authenticity, and identity" of digital objects "in a preservation context" (i.e., DataONE), and pays particular attention to "digital provenance (the history of an object and to the documentation of relationships, especially relationships among different objects within the preservation repository" (p.3).r9��h"j��h-h.h/häh1}r:��(h3]h4]h5]h6]h9]uh;Kh<hh=]r;��hFXK��This document describes some of the results of a practicum project carried out by Elizabeth (Betsy) Allen in Spring 2010. The PREMIS Data Dictionary for Preservation Metadata was used as a standard against which the explicit and implicit requirements of DataONE would be measured: "The PREMIS Data Dictionary defines 'preservation metadata' as the information a repository usees to support the digital preservation process" (PREMIS Editorial Committee, 2008, p.3). PREMIS is focused on the "viabilility, renderability, understandability, authenticity, and identity" of digital objects "in a preservation context" (i.e., DataONE), and pays particular attention to "digital provenance (the history of an object and to the documentation of relationships, especially relationships among different objects within the preservation repository" (p.3).r<��ÖÅr=��}r>��(h!j9��h"j7��ubaubhÜ)År?��}r@��(h!X‰��The PREMIS Data Dictionary seeks to identify "core" elements with its set of definitions, where core implies "things that most working preservation repositories are likely to need to know in order to support digital preservation" (p.3). PREMIS also considered "implementability": because of the large amounts of data held within preservation systems, metadata values should be suppied autmatically and be capable of automated processing: required human intervention should be avoided.rA��h"j��h-h.h/häh1}rB��(h3]h4]h5]h6]h9]uh;K*h<hh=]rC��hFX‰��The PREMIS Data Dictionary seeks to identify "core" elements with its set of definitions, where core implies "things that most working preservation repositories are likely to need to know in order to support digital preservation" (p.3). PREMIS also considered "implementability": because of the large amounts of data held within preservation systems, metadata values should be suppied autmatically and be capable of automated processing: required human intervention should be avoided.rD��ÖÅrE��}rF��(h!jA��h"j?��ubaubhÜ)ÅrG��}rH��(h!X’��It should also be noted that PREMIS has been created according to the "1:1 principle" which "asserts that each description describes one and only one resource.... It is not possible to change a file...; on can only create a new file... that is related to the source object" (p.14). The practicality of this principle in DataONE has been debated by the Core Cyberinfrastructure Team, which recognizes its conceptual cleanliness as well as its operational impracticality.rI��h"j��h-h.h/häh1}rJ��(h3]h4]h5]h6]h9]uh;K2h<hh=]rK��hFX’��It should also be noted that PREMIS has been created according to the "1:1 principle" which "asserts that each description describes one and only one resource.... It is not possible to change a file...; on can only create a new file... that is related to the source object" (p.14). The practicality of this principle in DataONE has been debated by the Core Cyberinfrastructure Team, which recognizes its conceptual cleanliness as well as its operational impracticality.rL��ÖÅrM��}rN��(h!jI��h"jG��ubaubhÜ)ÅrO��}rP��(h!Xö���PREMIS does not specify formats or other requirements for how preservation is implemented in a preservation repository: these are left as local decisions.rQ��h"j��h-h.h/häh1}rR��(h3]h4]h5]h6]h9]uh;K:h<hh=]rS��hFXö���PREMIS does not specify formats or other requirements for how preservation is implemented in a preservation repository: these are left as local decisions.rT��ÖÅrU��}rV��(h!jQ��h"jO��ubaubhÜ)ÅrW��}rX��(h!X>��DataONE, as a preservation repository, could aim toward "PREMIS conformance" by implementing metadata elements that share the names and semantics of PREMIS Data Dictionary semantic units. PREMIS is also intended to be a foundation for interoperable preservation repositories (pp.15-16); PREMIS recommends using its semantic unit names to aid this interoperability. This document does not argue for or against seeking PREMIS conformance for DataONE; rather, it seeks to identify and summarize topics and outstanding issues for discussion within the broader DataONE community.rY��h"j��h-h.h/häh1}rZ��(h3]h4]h5]h6]h9]uh;K=h<hh=]r[��hFX>��DataONE, as a preservation repository, could aim toward "PREMIS conformance" by implementing metadata elements that share the names and semantics of PREMIS Data Dictionary semantic units. PREMIS is also intended to be a foundation for interoperable preservation repositories (pp.15-16); PREMIS recommends using its semantic unit names to aid this interoperability. This document does not argue for or against seeking PREMIS conformance for DataONE; rather, it seeks to identify and summarize topics and outstanding issues for discussion within the broader DataONE community.r\��ÖÅr]��}r^��(h!jY��h"jW��ubaubhÜ)År_��}r`��(h!X„��This practicum project also took the Open Archives Initiative's Object Reuse and Exchange (OAI-ORE) (Lagoze et al, 2008) and the BagIt File Packaging Format (Boyko et al, 2009) into account as possible standards for aggregations, or packages, of Web resources and as possible methods for recording the relationships between preserved objects in DataONE. BagIt is "is a hierarchical file packaging format designed to support disk-based or network-based storage and transfer of generalized digital content" (p.3). OAI-ORE "defines standards for the description and exchange of aggregations of Web resources". This document looks at the points where BagIt and OAI-ORE may play a role in supporting the long-term preservation needs of DataONE.ra��h"j��h-h.h/häh1}rb��(h3]h4]h5]h6]h9]uh;KFh<hh=]rc��hFX„��This practicum project also took the Open Archives Initiative's Object Reuse and Exchange (OAI-ORE) (Lagoze et al, 2008) and the BagIt File Packaging Format (Boyko et al, 2009) into account as possible standards for aggregations, or packages, of Web resources and as possible methods for recording the relationships between preserved objects in DataONE. BagIt is "is a hierarchical file packaging format designed to support disk-based or network-based storage and transfer of generalized digital content" (p.3). OAI-ORE "defines standards for the description and exchange of aggregations of Web resources". This document looks at the points where BagIt and OAI-ORE may play a role in supporting the long-term preservation needs of DataONE.rd��ÖÅre��}rf��(h!ja��h"j_��ubaubhÜ)Årg��}rh��(h!Xç��BagIt and OAI-ORE have different strengths, and both systems have potential for use within DataONE. Their differences are significant, and so they cannot be viewed as substitutes for each other. The strengths of BagIt include simplicity (text and file/directory orientations; supports opaque payloads; supports aggregation; self-describing); its limitations include its hierarchical structure and what appears to be the "fixed-in-time" nature of a bag: the specification doesn't discuss how the content of a bag might evolve over time, which limits its utility for application to supporting provenance tracking for objects in a preseravation repository.ri��h"j��h-h.h/häh1}rj��(h3]h4]h5]h6]h9]uh;KQh<hh=]rk��hFXç��BagIt and OAI-ORE have different strengths, and both systems have potential for use within DataONE. Their differences are significant, and so they cannot be viewed as substitutes for each other. The strengths of BagIt include simplicity (text and file/directory orientations; supports opaque payloads; supports aggregation; self-describing); its limitations include its hierarchical structure and what appears to be the "fixed-in-time" nature of a bag: the specification doesn't discuss how the content of a bag might evolve over time, which limits its utility for application to supporting provenance tracking for objects in a preseravation repository.rl��ÖÅrm��}rn��(h!ji��h"jg��ubaubhÜ)Åro��}rp��(h!XB��OAI-ORE's strengths include its flexibility and extensibility, its graph-based architecture, specifications based upon stable and widely-used technologies included the URI and RDF, and the ability for relationships to be added to existing OAI-ORE resources as time passes. OAI-ORE is also related to other efforts that may play a role in DataONE, such as the Open Annotation Collaboration (http://www.openannotation.org/). OAI-ORE's flexibility has a cost in terms of its complexity, so it will be more costly to develop and maintain a reliable implementation (although its current popularity may mean that existing code implementations may be available for use within DataONE). OAI-ORE is also expressed in XML, which tends to increase storage consumption. Large XML data stores are also time-consuming to parse without optimization.h"j��h-h.h/häh1}rq��(h3]h4]h5]h6]h9]uh;K[h<hh=]rr��(hFXÜ��OAI-ORE's strengths include its flexibility and extensibility, its graph-based architecture, specifications based upon stable and widely-used technologies included the URI and RDF, and the ability for relationships to be added to existing OAI-ORE resources as time passes. OAI-ORE is also related to other efforts that may play a role in DataONE, such as the Open Annotation Collaboration (rs��ÖÅrt��}ru��(h!XÜ��OAI-ORE's strengths include its flexibility and extensibility, its graph-based architecture, specifications based upon stable and widely-used technologies included the URI and RDF, and the ability for relationships to be added to existing OAI-ORE resources as time passes. OAI-ORE is also related to other efforts that may play a role in DataONE, such as the Open Annotation Collaboration (h"jo��ubcdocutils.nodes reference rv��)Årw��}rx��(h!X���http://www.openannotation.org/ry��h1}rz��(Urefurijy��h6]h5]h3]h4]h9]uh"jo��h=]r{��hFX���http://www.openannotation.org/r|��ÖÅr}��}r~��(h!U�h"jw��ubah/U referencer��ubhFXû��). OAI-ORE's flexibility has a cost in terms of its complexity, so it will be more costly to develop and maintain a reliable implementation (although its current popularity may mean that existing code implementations may be available for use within DataONE). OAI-ORE is also expressed in XML, which tends to increase storage consumption. Large XML data stores are also time-consuming to parse without optimization.rÄ��ÖÅrÅ��}rÇ��(h!Xû��). OAI-ORE's flexibility has a cost in terms of its complexity, so it will be more costly to develop and maintain a reliable implementation (although its current popularity may mean that existing code implementations may be available for use within DataONE). OAI-ORE is also expressed in XML, which tends to increase storage consumption. Large XML data stores are also time-consuming to parse without optimization.h"jo��ubeubhÜ)ÅrÉ��}rÑ��(h!X¬��The document is organized as follows. A set of high-level requirements was developed to represent the general needs of the DataONE system metadata. For each of the high-level requirements identified, the relevant sections of the PREMIS data dictionary were identified, and missing, additional, mismatched aspects are identified in the text. The documentation for BagIt and OAI-ORE were consulted and their relevance to the requirement is also discussed in the text. Optionally, use cases relevant to the requirement are described, using science data specified in EML, Dryad, ORNL DAAC, and/or NBII formats as examples. The section on each requirement ends with a general discussion of the overall analysis.rÖ��h"j��h-h.h/häh1}rÜ��(h3]h4]h5]h6]h9]uh;Kgh<hh=]rá��hFX¬��The document is organized as follows. A set of high-level requirements was developed to represent the general needs of the DataONE system metadata. For each of the high-level requirements identified, the relevant sections of the PREMIS data dictionary were identified, and missing, additional, mismatched aspects are identified in the text. The documentation for BagIt and OAI-ORE were consulted and their relevance to the requirement is also discussed in the text. Optionally, use cases relevant to the requirement are described, using science data specified in EML, Dryad, ORNL DAAC, and/or NBII formats as examples. The section on each requirement ends with a general discussion of the overall analysis.rà��ÖÅrâ��}rä��(h!jÖ��h"jÉ��ubaubeubh)h#)Årã��}rå��(h!U�h&Kh"h+h-h.h/h0h1}rç��(h3]ré��X ���discussionrè��ah4]h5]h6]rê��Uid20rë��ah9]uh;MPh<hh=]rí��(h?)Årì��}rî��(h!X ���Discussionrï��h"jã��h-h.h/hCh1}rñ��(h3]h4]h5]h6]h9]uh;MPh<hh=]ró��hFX ���Discussionrò��ÖÅrô��}rö��(h!jï��h"jì��ubaubh#)Årõ��}rú��(h!U�h"jã��h-h.h/h0h1}rù��(h3]h4]h5]h6]rû��UUrequirement-6-record-software-and-hardware-specifications-for-future-object-renderingrü��ah9]r†��hauh;MSh<hh=]r°��(h?)År¢��}r£��(h!XV���Requirement 6: Record software and hardware specifications for future object renderingr§��h"jõ��h-h.h/hCh1}r•��(h3]h4]h5]h6]h9]uh;MSh<hh=]r¶��hFXV���Requirement 6: Record software and hardware specifications for future object renderingrß��ÖÅr®��}r©��(h!j§��h"j¢��ubaubh#)År™��}r´��(h!U�h&Kh"jõ��h-h.h/h0h1}r¨��(h3]r≠��X���descriptionrÆ��ah4]h5]h6]rØ��Uid21r∞��ah9]uh;MVh<hh=]r±��(h?)År≤��}r≥��(h!X���Descriptionr¥��h"j™��h-h.h/hCh1}rµ��(h3]h4]h5]h6]h9]uh;MVh<hh=]r∂��hFX���Descriptionr∑��ÖÅr∏��}rπ��(h!j¥��h"j≤��ubaubhÜ)År∫��}rª��(h!X>���Emulation is a core preservation strategy for digital objects.rº��h"j™��h-h.h/häh1}rΩ��(h3]h4]h5]h6]h9]uh;MXh<hh=]ræ��hFX>���Emulation is a core preservation strategy for digital objects.rø��ÖÅr¿��}r¡��(h!jº��h"j∫��ubaubeubh#)År¬��}r√��(h!U�h&Kh"jõ��h-h.h/h0h1}rƒ��(h3]r≈��X���what premis suggestsr∆��ah4]h5]h6]r«��Uid22r»��ah9]uh;M[h<hh=]r…��(h?)År ��}rÀ��(h!X���What PREMIS suggestsrÃ��h"j¬��h-h.h/hCh1}rÕ��(h3]h4]h5]h6]h9]uh;M[h<hh=]rŒ��hFX���What PREMIS suggestsrœ��ÖÅr–��}r—��(h!jÃ��h"j ��ubaubhÜ)År“��}r”��(h!Xm��PREMIS provides the notion of a representation to as "the set of files required" to "maintain usable versions of intellectual entities over time" (p. 8). Emulation is one preservation approach to ensure long-term usability of digital objects. To emulate a digital object whose format is obsolete, the DataONE system must record information that characterizes both the software (1.8.5) and hardware (1.8.6) environent for each object. PREMIS requires software/hardware name and type to be recorded, while software version (1.8.5.2), software components needed by the software (1.8.5.5), and other information are optional.r‘��h"j¬��h-h.h/häh1}r’��(h3]h4]h5]h6]h9]uh;M]h<hh=]r÷��hFXm��PREMIS provides the notion of a representation to as "the set of files required" to "maintain usable versions of intellectual entities over time" (p. 8). Emulation is one preservation approach to ensure long-term usability of digital objects. To emulate a digital object whose format is obsolete, the DataONE system must record information that characterizes both the software (1.8.5) and hardware (1.8.6) environent for each object. PREMIS requires software/hardware name and type to be recorded, while software version (1.8.5.2), software components needed by the software (1.8.5.5), and other information are optional.r◊��ÖÅrÿ��}rŸ��(h!j‘��h"j“��ubaubeubh#)År⁄��}r€��(h!U�h&Kh"jõ��h-h.h/h0h1}r‹��(h3]r›��X���what bagit and oai-ore providerfi��ah4]h5]h6]rfl��Uid23r‡��ah9]uh;Mgh<hh=]r·��h?)År‚��}r„��(h!X���What BagIt and OAI-ORE provider‰��h"j⁄��h-h.h/hCh1}rÂ��(h3]h4]h5]h6]h9]uh;Mgh<hh=]rÊ��hFX���What BagIt and OAI-ORE providerÁ��ÖÅrË��}rÈ��(h!j‰��h"j‚��ubaubaubh#)ÅrÍ��}rÎ��(h!U�h&Kh"jõ��h-h.h/h0h1}rÏ��(h3]rÌ��X"���dataone use cases and requirementsrÓ��ah4]h5]h6]rÔ��Uid24r��ah9]uh;Mjh<hh=]rÒ��(h?)ÅrÚ��}rÛ��(h!X"���DataONE use cases and requirementsrÙ��h"jÍ��h-h.h/hCh1}rı��(h3]h4]h5]h6]h9]uh;Mjh<hh=]rˆ��hFX"���DataONE use cases and requirementsr˜��ÖÅr¯��}r˘��(h!jÙ��h"jÚ��ubaubhÜ)År˙��}r˚��(h!Xp���(Requirement) The infrastructure must support long term preservation of data https://trac.dataone.org/ticket/410h"jÍ��h-h.h/häh1}r¸��(h3]h4]h5]h6]h9]uh;Mlh<hh=]r˝��(hFXM���(Requirement) The infrastructure must support long term preservation of data r˛��ÖÅrˇ��}r���(h!XM���(Requirement) The infrastructure must support long term preservation of data h"j˙��ubjv��)År��}r��(h!X#���https://trac.dataone.org/ticket/410r��h1}r��(Urefurij��h6]h5]h3]h4]h9]uh"j˙��h=]r��hFX#���https://trac.dataone.org/ticket/410r��ÖÅr��}r��(h!U�h"j��ubah/j��ubeubhÜ)År ��}r ��(h!Xb���(Requirement) Maintain original copies of all science metadata https://trac.dataone.org/ticket/439h"jÍ��h-h.h/häh1}r��(h3]h4]h5]h6]h9]uh;Moh<hh=]r��(hFX?���(Requirement) Maintain original copies of all science metadata r ��ÖÅr��}r��(h!X?���(Requirement) Maintain original copies of all science metadata h"j ��ubjv��)År��}r��(h!X#���https://trac.dataone.org/ticket/439r��h1}r��(Urefurij��h6]h5]h3]h4]h9]uh"j ��h=]r��hFX#���https://trac.dataone.org/ticket/439r��ÖÅr��}r��(h!U�h"j��ubah/j��ubeubeubh#)År��}r��(h!U�h&Kh"jõ��h-h.h/h0h1}r��(h3]r��X ���discussionr��ah4]h5]h6]r��Uid25r��ah9]uh;Msh<hh=]r��h?)År ��}r!��(h!X ���Discussionr"��h"j��h-h.h/hCh1}r#��(h3]h4]h5]h6]h9]uh;Msh<hh=]r$��hFX ���Discussionr%��ÖÅr&��}r'��(h!j"��h"j ��ubaubaubeubh#)År(��}r)��(h!U�h"jã��h-h.h/h0h1}r*��(h3]h4]h5]h6]r+��UPrequirement-7-record-provenance-information-e-g-prinicpal-timestamp-event-rightsr,��ah9]r-��hauh;Mwh<hh=]r.��(h?)År/��}r0��(h!XX���Requirement 7: Record provenance information (e.g., prinicpal, timestamp, event, rights)r1��h"j(��h-h.h/hCh1}r2��(h3]h4]h5]h6]h9]uh;Mwh<hh=]r3��hFXX���Requirement 7: Record provenance information (e.g., prinicpal, timestamp, event, rights)r4��ÖÅr5��}r6��(h!j1��h"j/��ubaubh#)År7��}r8��(h!U�h&Kh"j(��h-h.h/h0h1}r9��(h3]r:��X���descriptionr;��ah4]h5]h6]r<��Uid26r=��ah9]uh;M{h<hh=]r>��(h?)År?��}r@��(h!X���DescriptionrA��h"j7��h-h.h/hCh1}rB��(h3]h4]h5]h6]h9]uh;M{h<hh=]rC��hFX���DescriptionrD��ÖÅrE��}rF��(h!jA��h"j?��ubaubhÜ)ÅrG��}rH��(h!XM��Recording provenance allows users of digital objects to follow who has created and acted upon the object, what action was taken, and when the action occured. PREMIS uses associations between events and objects to record provenance. PREMIS, however, leaves decisions on which events are worthy of recording to the preservation system.rI��h"j7��h-h.h/häh1}rJ��(h3]h4]h5]h6]h9]uh;M}h<hh=]rK��hFXM��Recording provenance allows users of digital objects to follow who has created and acted upon the object, what action was taken, and when the action occured. PREMIS uses associations between events and objects to record provenance. PREMIS, however, leaves decisions on which events are worthy of recording to the preservation system.rL��ÖÅrM��}rN��(h!jI��h"jG��ubaubeubh#)ÅrO��}rP��(h!U�h&Kh"j(��h-h.h/h0h1}rQ��(h3]rR��X���what premis suggestsrS��ah4]h5]h6]rT��Uid27rU��ah9]uh;MÖh<hh=]rV��(h?)ÅrW��}rX��(h!X���What PREMIS suggestsrY��h"jO��h-h.h/hCh1}rZ��(h3]h4]h5]h6]h9]uh;MÖh<hh=]r[��hFX���What PREMIS suggestsr\��ÖÅr]��}r^��(h!jY��h"jW��ubaubhÜ)År_��}r`��(h!XU��PREMIS states that provenance is one of the many attributes necessary for a digital object to be authentic (pg. 200); however, because demonstrating provenance involves many semantic units, it deserves to be its own requirement rather than a sub-requirement for authenticity [bad justification?]. The DataONE systems would capture provenance by recording who is doing what to the digital object through time. This includes recording information on the unique object identifier (1.1), the original name of the object if it was not created within the repository (1.6), and any relationships this item has with other digital objects such as "is a source of" (1.10). The majority of semantic units necessary to record provenance come from the event entity. The system will need to create a unique identifier for each event (2.1), describe the event type taken from a controlled vocabulary, (e.g. migration and ingestion)(2.1), and record when the event occurred (2.3). Optionally, ir could store details about the event, which are non-machine readable (2.4), and any information on the success of the event (2.5).ra��h"jO��h-h.h/häh1}rb��(h3]h4]h5]h6]h9]uh;Máh<hh=]rc��hFXU��PREMIS states that provenance is one of the many attributes necessary for a digital object to be authentic (pg. 200); however, because demonstrating provenance involves many semantic units, it deserves to be its own requirement rather than a sub-requirement for authenticity [bad justification?]. The DataONE systems would capture provenance by recording who is doing what to the digital object through time. This includes recording information on the unique object identifier (1.1), the original name of the object if it was not created within the repository (1.6), and any relationships this item has with other digital objects such as "is a source of" (1.10). The majority of semantic units necessary to record provenance come from the event entity. The system will need to create a unique identifier for each event (2.1), describe the event type taken from a controlled vocabulary, (e.g. migration and ingestion)(2.1), and record when the event occurred (2.3). Optionally, ir could store details about the event, which are non-machine readable (2.4), and any information on the success of the event (2.5).rd��ÖÅre��}rf��(h!ja��h"j_��ubaubeubh#)Årg��}rh��(h!U�h&Kh"j(��h-h.h/h0h1}ri��(h3]rj��X���what bagit and oai-ore providerk��ah4]h5]h6]rl��Uid28rm��ah9]uh;Mòh<hh=]rn��h?)Åro��}rp��(h!X���What BagIt and OAI-ORE providerq��h"jg��h-h.h/hCh1}rr��(h3]h4]h5]h6]h9]uh;Mòh<hh=]rs��hFX���What BagIt and OAI-ORE providert��ÖÅru��}rv��(h!jq��h"jo��ubaubaubh#)Årw��}rx��(h!U�h&Kh"j(��h-h.h/h0h1}ry��(h3]rz��X"���dataone use cases and requirementsr{��ah4]h5]h6]r|��Uid29r}��ah9]uh;Mõh<hh=]r~��(h?)År��}rÄ��(h!X"���DataONE use cases and requirementsrÅ��h"jw��h-h.h/hCh1}rÇ��(h3]h4]h5]h6]h9]uh;Mõh<hh=]rÉ��hFX"���DataONE use cases and requirementsrÑ��ÖÅrÖ��}rÜ��(h!jÅ��h"j��ubaubhÜ)Årá��}rà��(h!XM���(Requirement) Identifiers for all objects https://trac.dataone.org/ticket/317râ��h"jw��h-h.h/häh1}rä��(h3]h4]h5]h6]h9]uh;Mùh<hh=]rã��(hFX*���(Requirement) Identifiers for all objects rå��ÖÅrç��}ré��(h!X*���(Requirement) Identifiers for all objects h"já��ubjv��)Årè��}rê��(h!X#���https://trac.dataone.org/ticket/317rë��h1}rí��(Urefurijë��h6]h5]h3]h4]h9]uh"já��h=]rì��hFX#���https://trac.dataone.org/ticket/317rî��ÖÅrï��}rñ��(h!U�h"jè��ubah/j��ubeubhÜ)Åró��}rò��(h!XV���(Requirement) Support arbitrary unique identifiers https://trac.dataone.org/ticket/385h"jw��h-h.h/häh1}rô��(h3]h4]h5]h6]h9]uh;Müh<hh=]rö��(hFX3���(Requirement) Support arbitrary unique identifiers rõ��ÖÅrú��}rù��(h!X3���(Requirement) Support arbitrary unique identifiers h"jó��ubjv��)Årû��}rü��(h!X#���https://trac.dataone.org/ticket/385r†��h1}r°��(Urefurij†��h6]h5]h3]h4]h9]uh"jó��h=]r¢��hFX#���https://trac.dataone.org/ticket/385r£��ÖÅr§��}r•��(h!U�h"jû��ubah/j��ubeubhÜ)År¶��}rß��(h!X\���(Requirement) Consistent mechanism for identifying users https://trac.dataone.org/ticket/390h"jw��h-h.h/häh1}r®��(h3]h4]h5]h6]h9]uh;M¢h<hh=]r©��(hFX9���(Requirement) Consistent mechanism for identifying users r™��ÖÅr´��}r¨��(h!X9���(Requirement) Consistent mechanism for identifying users h"j¶��ubjv��)År≠��}rÆ��(h!X#���https://trac.dataone.org/ticket/390rØ��h1}r∞��(UrefurijØ��h6]h5]h3]h4]h9]uh"j¶��h=]r±��hFX#���https://trac.dataone.org/ticket/390r≤��ÖÅr≥��}r¥��(h!U�h"j≠��ubah/j��ubeubhÜ)Årµ��}r∂��(h!X]���(Requirement) Identifiers always refer to the same object https://trac.dataone.org/ticket/412h"jw��h-h.h/häh1}r∑��(h3]h4]h5]h6]h9]uh;M•h<hh=]r∏��(hFX:���(Requirement) Identifiers always refer to the same object rπ��ÖÅr∫��}rª��(h!X:���(Requirement) Identifiers always refer to the same object h"jµ��ubjv��)Årº��}rΩ��(h!X#���https://trac.dataone.org/ticket/412ræ��h1}rø��(Urefurijæ��h6]h5]h3]h4]h9]uh"jµ��h=]r¿��hFX#���https://trac.dataone.org/ticket/412r¡��ÖÅr¬��}r√��(h!U�h"jº��ubah/j��ubeubeubh#)Årƒ��}r≈��(h!U�h&Kh"j(��h-h.h/h0h1}r∆��(h3]r«��X ���discussionr»��ah4]h5]h6]r…��Uid30r ��ah9]uh;M©h<hh=]rÀ��h?)ÅrÃ��}rÕ��(h!X ���DiscussionrŒ��h"jƒ��h-h.h/hCh1}rœ��(h3]h4]h5]h6]h9]uh;M©h<hh=]r–��hFX ���Discussionr—��ÖÅr“��}r”��(h!jŒ��h"jÃ��ubaubaubeubh#)År‘��}r’��(h!U�h"jã��h-h.h/h0h1}r÷��(h3]h4]h5]h6]r◊��UIrequirement-8-record-information-to-ensure-viability-of-preserved-objectsrÿ��ah9]rŸ��hauh;M¨h<hh=]r⁄��(h?)År€��}r‹��(h!XJ���Requirement 8: Record information to ensure viability of preserved objectsr›��h"j‘��h-h.h/hCh1}rfi��(h3]h4]h5]h6]h9]uh;M¨h<hh=]rfl��hFXJ���Requirement 8: Record information to ensure viability of preserved objectsr‡��ÖÅr·��}r‚��(h!j›��h"j€��ubaubh#)År„��}r‰��(h!U�h&Kh"j‘��h-h.h/h0h1}rÂ��(h3]rÊ��X���descriptionrÁ��ah4]h5]h6]rË��Uid31rÈ��ah9]uh;M∞h<hh=]rÍ��h?)ÅrÎ��}rÏ��(h!X���DescriptionrÌ��h"j„��h-h.h/hCh1}rÓ��(h3]h4]h5]h6]h9]uh;M∞h<hh=]rÔ��hFX���Descriptionr��ÖÅrÒ��}rÚ��(h!jÌ��h"jÎ��ubaubaubh#)ÅrÛ��}rÙ��(h!U�h&Kh"j‘��h-h.h/h0h1}rı��(h3]rˆ��X���what premis suggestsr˜��ah4]h5]h6]r¯��Uid32r˘��ah9]uh;M¥h<hh=]r˙��(h?)År˚��}r¸��(h!X���What PREMIS suggestsr˝��h"jÛ��h-h.h/hCh1}r˛��(h3]h4]h5]h6]h9]uh;M¥h<hh=]rˇ��hFX���What PREMIS suggestsr���ÖÅr��}r��(h!j˝��h"j˚��ubaubhÜ)År��}r��(h!XÖ��PREMIS defines viability as the "property of being readable from media". The PREMIS working group intentionally avoided defining detailed semanitc units for viability with the exception of 1.7.2, storage media, where the medium for storing an object is defined. More detailed information on media would likely be desirable so that repository managers would know when to refresh the medium.r��h"jÛ��h-h.h/häh1}r��(h3]h4]h5]h6]h9]uh;M∂h<hh=]r��hFXÖ��PREMIS defines viability as the "property of being readable from media". The PREMIS working group intentionally avoided defining detailed semanitc units for viability with the exception of 1.7.2, storage media, where the medium for storing an object is defined. More detailed information on media would likely be desirable so that repository managers would know when to refresh the medium.r��ÖÅr ��}r ��(h!j��h"j��ubaubeubh#)År��}r��(h!U�h&Kh"j‘��h-h.h/h0h1}r ��(h3]r��X���what bagit and oai-ore provider��ah4]h5]h6]r��Uid33r��ah9]uh;MΩh<hh=]r��h?)År��}r��(h!X���What BagIt and OAI-ORE provider��h"j��h-h.h/hCh1}r��(h3]h4]h5]h6]h9]uh;MΩh<hh=]r��hFX���What BagIt and OAI-ORE provider��ÖÅr��}r��(h!j��h"j��ubaubaubh#)År��}r��(h!U�h&Kh"j‘��h-h.h/h0h1}r��(h3]r��X"���dataone use cases and requirementsr��ah4]h5]h6]r ��Uid34r!��ah9]uh;M¿h<hh=]r"��(h?)År#��}r$��(h!X"���DataONE use cases and requirementsr%��h"j��h-h.h/hCh1}r&��(h3]h4]h5]h6]h9]uh;M¿h<hh=]r'��hFX"���DataONE use cases and requirementsr(��ÖÅr)��}r*��(h!j%��h"j#��ubaubhÜ)År+��}r,��(h!Xp���(Requirement) The infrastructure must support long term preservation of data https://trac.dataone.org/ticket/410h"j��h-h.h/häh1}r-��(h3]h4]h5]h6]h9]uh;M¬h<hh=]r.��(hFXM���(Requirement) The infrastructure must support long term preservation of data r/��ÖÅr0��}r1��(h!XM���(Requirement) The infrastructure must support long term preservation of data h"j+��ubjv��)År2��}r3��(h!X#���https://trac.dataone.org/ticket/410r4��h1}r5��(Urefurij4��h6]h5]h3]h4]h9]uh"j+��h=]r6��hFX#���https://trac.dataone.org/ticket/410r7��ÖÅr8��}r9��(h!U�h"j2��ubah/j��ubeubhÜ)År:��}r;��(h!Xb���(Requirement) Maintain original copies of all science metadata https://trac.dataone.org/ticket/439h"j��h-h.h/häh1}r<��(h3]h4]h5]h6]h9]uh;M≈h<hh=]r=��(hFX?���(Requirement) Maintain original copies of all science metadata r>��ÖÅr?��}r@��(h!X?���(Requirement) Maintain original copies of all science metadata h"j:��ubjv��)ÅrA��}rB��(h!X#���https://trac.dataone.org/ticket/439rC��h1}rD��(UrefurijC��h6]h5]h3]h4]h9]uh"j:��h=]rE��hFX#���https://trac.dataone.org/ticket/439rF��ÖÅrG��}rH��(h!U�h"jA��ubah/j��ubeubeubh#)ÅrI��}rJ��(h!U�h&Kh"j‘��h-h.h/h0h1}rK��(h3]rL��X ���discussionrM��ah4]h5]h6]rN��Uid35rO��ah9]uh;M…h<hh=]rP��h?)ÅrQ��}rR��(h!X ���DiscussionrS��h"jI��h-h.h/hCh1}rT��(h3]h4]h5]h6]h9]uh;M…h<hh=]rU��hFX ���DiscussionrV��ÖÅrW��}rX��(h!jS��h"jQ��ubaubaubeubh#)ÅrY��}rZ��(h!U�h"jã��h-h.h/h0h1}r[��(h3]h4]h5]h6]r\��ULrequirement-9-record-information-to-ensure-authenticity-of-preserved-objectsr]��ah9]r^��hauh;MÕh<hh=]r_��(h?)År`��}ra��(h!XM���Requirement 9: Record information to ensure authenticity of preserved objectsrb��h"jY��h-h.h/hCh1}rc��(h3]h4]h5]h6]h9]uh;MÕh<hh=]rd��hFXM���Requirement 9: Record information to ensure authenticity of preserved objectsre��ÖÅrf��}rg��(h!jb��h"j`��ubaubh#)Årh��}ri��(h!U�h&Kh"jY��h-h.h/h0h1}rj��(h3]rk��X���descriptionrl��ah4]h5]h6]rm��Uid36rn��ah9]uh;M–h<hh=]ro��(h?)Årp��}rq��(h!X���Descriptionrr��h"jh��h-h.h/hCh1}rs��(h3]h4]h5]h6]h9]uh;M–h<hh=]rt��hFX���Descriptionru��ÖÅrv��}rw��(h!jr��h"jp��ubaubhÜ)Årx��}ry��(h!Xë���Authenticity is the "quality of being what it purports to be". This includes the conepts of fixity, integrity, and the use of digital signatures.rz��h"jh��h-h.h/häh1}r{��(h3]h4]h5]h6]h9]uh;M“h<hh=]r|��hFXë���Authenticity is the "quality of being what it purports to be". This includes the conepts of fixity, integrity, and the use of digital signatures.r}��ÖÅr~��}r��(h!jz��h"jx��ubaubeubh#)ÅrÄ��}rÅ��(h!U�h&Kh"jY��h-h.h/h0h1}rÇ��(h3]rÉ��X���what premis suggestsrÑ��ah4]h5]h6]rÖ��Uid37rÜ��ah9]uh;M◊h<hh=]rá��(h?)Årà��}râ��(h!X���What PREMIS suggestsrä��h"jÄ��h-h.h/hCh1}rã��(h3]h4]h5]h6]h9]uh;M◊h<hh=]rå��hFX���What PREMIS suggestsrç��ÖÅré��}rè��(h!jä��h"jà��ubaubhÜ)Årê��}rë��(h!X��PREMIS has many semantic units that can be used as evidence of an object's authenticity (1.5 and its sub-units). It is mandatory to record either format designation of the object from a controlled vocabulary (e.g. base64 or Adobe PDF)(1.5.4) or identify the format type through reference to a format registry (1.5.4.2). It is recommended, though optional, that the DataONE system record the message digest (1.5.2.2), the specific algorithm used to create the message digest (1.5.2.1), and who created the original digest (1.5.2.3).rí��h"jÄ��h-h.h/häh1}rì��(h3]h4]h5]h6]h9]uh;MŸh<hh=]rî��hFX��PREMIS has many semantic units that can be used as evidence of an object's authenticity (1.5 and its sub-units). It is mandatory to record either format designation of the object from a controlled vocabulary (e.g. base64 or Adobe PDF)(1.5.4) or identify the format type through reference to a format registry (1.5.4.2). It is recommended, though optional, that the DataONE system record the message digest (1.5.2.2), the specific algorithm used to create the message digest (1.5.2.1), and who created the original digest (1.5.2.3).rï��ÖÅrñ��}ró��(h!jí��h"jê��ubaubhÜ)Årò��}rô��(h!X&��Digital signature information is an optional unit in PREMIS (1.9). ["A repository may have a policy of generating digital signatures for files on ingest, or may have a need to store and later validate incoming digital signatures". Which is it for DataONE or is it both?] To use digital signatures the system need to record the signature value (1.9.1.4), the "designation for the encryption and hash algorithms used for signature generation" (1.9.1.3), the rules for validating the signature (1.9.1.5), the encoding used for the singature (1.9.1.1), the signer's public key (1.9.1.7) and who created the signature (1.9.1.2 or 3.1). [Should recording the object's size be a requirement for authenticity? It is a characteristic, but I think it is more important for ensuring that a replication was successful]rö��h"jÄ��h-h.h/häh1}rõ��(h3]h4]h5]h6]h9]uh;M·h<hh=]rú��hFX&��Digital signature information is an optional unit in PREMIS (1.9). ["A repository may have a policy of generating digital signatures for files on ingest, or may have a need to store and later validate incoming digital signatures". Which is it for DataONE or is it both?] To use digital signatures the system need to record the signature value (1.9.1.4), the "designation for the encryption and hash algorithms used for signature generation" (1.9.1.3), the rules for validating the signature (1.9.1.5), the encoding used for the singature (1.9.1.1), the signer's public key (1.9.1.7) and who created the signature (1.9.1.2 or 3.1). [Should recording the object's size be a requirement for authenticity? It is a characteristic, but I think it is more important for ensuring that a replication was successful]rù��ÖÅrû��}rü��(h!jö��h"jò��ubaubhÜ)År†��}r°��(h!Xæ��The semantic unit 1.5 is used to record object characteristics, but demonstrating that the object characteristics are in fact valid occurs through events. For example, performing regular fixity checks is captured through the units event identifier (2.1), event type such as "fixity check" (2.2), and event date (2.3). Digital signature validation and format validation are also types of events that need to be recorded to show authenticity (2.3).r¢��h"jÄ��h-h.h/häh1}r£��(h3]h4]h5]h6]h9]uh;MÌh<hh=]r§��hFXæ��The semantic unit 1.5 is used to record object characteristics, but demonstrating that the object characteristics are in fact valid occurs through events. For example, performing regular fixity checks is captured through the units event identifier (2.1), event type such as "fixity check" (2.2), and event date (2.3). Digital signature validation and format validation are also types of events that need to be recorded to show authenticity (2.3).r•��ÖÅr¶��}rß��(h!j¢��h"j†��ubaubeubh#)År®��}r©��(h!U�h&Kh"jY��h-h.h/h0h1}r™��(h3]r´��X���what bagit and oai-ore provider¨��ah4]h5]h6]r≠��Uid38rÆ��ah9]uh;Mıh<hh=]rØ��h?)År∞��}r±��(h!X���What BagIt and OAI-ORE provider≤��h"j®��h-h.h/hCh1}r≥��(h3]h4]h5]h6]h9]uh;Mıh<hh=]r¥��hFX���What BagIt and OAI-ORE providerµ��ÖÅr∂��}r∑��(h!j≤��h"j∞��ubaubaubh#)År∏��}rπ��(h!U�h&Kh"jY��h-h.h/h0h1}r∫��(h3]rª��X"���dataone use cases and requirementsrº��ah4]h5]h6]rΩ��Uid39ræ��ah9]uh;M¯h<hh=]rø��(h?)År¿��}r¡��(h!X"���DataONE use cases and requirementsr¬��h"j∏��h-h.h/hCh1}r√��(h3]h4]h5]h6]h9]uh;M¯h<hh=]rƒ��hFX"���DataONE use cases and requirementsr≈��ÖÅr∆��}r«��(h!j¬��h"j¿��ubaubhÜ)År»��}r…��(h!Xp���(Requirement) The infrastructure must support long term preservation of data https://trac.dataone.org/ticket/410h"j∏��h-h.h/häh1}r ��(h3]h4]h5]h6]h9]uh;M˙h<hh=]rÀ��(hFXM���(Requirement) The infrastructure must support long term preservation of data rÃ��ÖÅrÕ��}rŒ��(h!XM���(Requirement) The infrastructure must support long term preservation of data h"j»��ubjv��)Årœ��}r–��(h!X#���https://trac.dataone.org/ticket/410r—��h1}r“��(Urefurij—��h6]h5]h3]h4]h9]uh"j»��h=]r”��hFX#���https://trac.dataone.org/ticket/410r‘��ÖÅr’��}r÷��(h!U�h"jœ��ubah/j��ubeubhÜ)År◊��}rÿ��(h!Xb���(Requirement) Maintain original copies of all science metadata https://trac.dataone.org/ticket/439h"j∏��h-h.h/häh1}rŸ��(h3]h4]h5]h6]h9]uh;M˝h<hh=]r⁄��(hFX?���(Requirement) Maintain original copies of all science metadata r€��ÖÅr‹��}r›��(h!X?���(Requirement) Maintain original copies of all science metadata h"j◊��ubjv��)Årfi��}rfl��(h!X#���https://trac.dataone.org/ticket/439r‡��h1}r·��(Urefurij‡��h6]h5]h3]h4]h9]uh"j◊��h=]r‚��hFX#���https://trac.dataone.org/ticket/439r„��ÖÅr‰��}rÂ��(h!U�h"jfi��ubah/j��ubeubeubh#)ÅrÊ��}rÁ��(h!U�h&Kh"jY��h-h.h/h0h1}rË��(h3]rÈ��X ���discussionrÍ��ah4]h5]h6]rÎ��Uid40rÏ��ah9]uh;Mh<hh=]rÌ��h?)ÅrÓ��}rÔ��(h!X ���Discussionr��h"jÊ��h-h.h/hCh1}rÒ��(h3]h4]h5]h6]h9]uh;Mh<hh=]rÚ��hFX ���DiscussionrÛ��ÖÅrÙ��}rı��(h!j��h"jÓ��ubaubaubeubh#)Årˆ��}r˜��(h!U�h"jã��h-h.h/h0h1}r¯��(h3]h4]h5]h6]r˘��U7requirement-10-ensure-that-principals-are-authenticatedr˙��ah9]r˚��hauh;Mh<hh=]r¸��(h?)År˝��}r˛��(h!X8���Requirement 10: Ensure that principals are authenticatedrˇ��h"jˆ��h-h.h/hCh1}r���(h3]h4]h5]h6]h9]uh;Mh<hh=]r��hFX8���Requirement 10: Ensure that principals are authenticatedr��ÖÅr��}r��(h!jˇ��h"j˝��ubaubh#)År��}r��(h!U�h&Kh"jˆ��h-h.h/h0h1}r��(h3]r��X���descriptionr ��ah4]h5]h6]r ��Uid41r��ah9]uh;Mh<hh=]r��(h?)År ��}r��(h!X���Descriptionr��h"j��h-h.h/hCh1}r��(h3]h4]h5]h6]h9]uh;Mh<hh=]r��hFX���Descriptionr��ÖÅr��}r��(h!j��h"j ��ubaubhÜ)År��}r��(h!X#���Software, organization. public key,r��h"j��h-h.h/häh1}r��(h3]h4]h5]h6]h9]uh;M h<hh=]r��hFX#���Software, organization. public key,r��ÖÅr��}r��(h!j��h"j��ubaubeubh#)År��}r��(h!U�h&Kh"jˆ��h-h.h/h0h1}r��(h3]r ��X���what premis suggestsr!��ah4]h5]h6]r"��Uid42r#��ah9]uh;Mh<hh=]r$��(h?)År%��}r&��(h!X���What PREMIS suggestsr'��h"j��h-h.h/hCh1}r(��(h3]h4]h5]h6]h9]uh;Mh<hh=]r)��hFX���What PREMIS suggestsr*��ÖÅr+��}r,��(h!j'��h"j%��ubaubhÜ)År-��}r.��(h!X¸��Principals are called agents in PREMIS. They are associated with either events that occur to a digital object or the rights associated with an object, but they are never directly linked to an object. PREMIS only has one required semantic unit for principal, which is agentIdentifier (3.1). Other optional units used to describe an agent include name (3.2) and type such as organization, software or person (3.3). The PREMIS Data Dictionary suggests that systems use digital signatures for authenticating submitters to and distributors from the system; however, because validation takes place right after signing, there is no need for the respository to preserve the signature itself through time. The system can record the act of validation as an Event if desired.r/��h"j��h-h.h/häh1}r0��(h3]h4]h5]h6]h9]uh;Mh<hh=]r1��hFX¸��Principals are called agents in PREMIS. They are associated with either events that occur to a digital object or the rights associated with an object, but they are never directly linked to an object. PREMIS only has one required semantic unit for principal, which is agentIdentifier (3.1). Other optional units used to describe an agent include name (3.2) and type such as organization, software or person (3.3). The PREMIS Data Dictionary suggests that systems use digital signatures for authenticating submitters to and distributors from the system; however, because validation takes place right after signing, there is no need for the respository to preserve the signature itself through time. The system can record the act of validation as an Event if desired.r2��ÖÅr3��}r4��(h!j/��h"j-��ubaubeubh#)År5��}r6��(h!U�h&Kh"jˆ��h-h.h/h0h1}r7��(h3]r8��X���what bagit and oai-ore provider9��ah4]h5]h6]r:��Uid43r;��ah9]uh;Mh<hh=]r<��h?)År=��}r>��(h!X���What BagIt and OAI-ORE provider?��h"j5��h-h.h/hCh1}r@��(h3]h4]h5]h6]h9]uh;Mh<hh=]rA��hFX���What BagIt and OAI-ORE providerB��ÖÅrC��}rD��(h!j?��h"j=��ubaubaubh#)ÅrE��}rF��(h!U�h&Kh"jˆ��h-h.h/h0h1}rG��(h3]rH��X"���dataone use cases and requirementsrI��ah4]h5]h6]rJ��Uid44rK��ah9]uh;Mh<hh=]rL��(h?)ÅrM��}rN��(h!X"���DataONE use cases and requirementsrO��h"jE��h-h.h/hCh1}rP��(h3]h4]h5]h6]h9]uh;Mh<hh=]rQ��hFX"���DataONE use cases and requirementsrR��ÖÅrS��}rT��(h!jO��h"jM��ubaubhÜ)ÅrU��}rV��(h!X\���(Requirement) Consistent mechanism for identifying users https://trac.dataone.org/ticket/390h"jE��h-h.h/häh1}rW��(h3]h4]h5]h6]h9]uh;Mh<hh=]rX��(hFX9���(Requirement) Consistent mechanism for identifying users rY��ÖÅrZ��}r[��(h!X9���(Requirement) Consistent mechanism for identifying users h"jU��ubjv��)År\��}r]��(h!X#���https://trac.dataone.org/ticket/390r^��h1}r_��(Urefurij^��h6]h5]h3]h4]h9]uh"jU��h=]r`��hFX#���https://trac.dataone.org/ticket/390ra��ÖÅrb��}rc��(h!U�h"j\��ubah/j��ubeubhÜ)Ård��}re��(h!Xq���(Requirement) Enable different classes of users commensurate with their roles https://trac.dataone.org/ticket/391h"jE��h-h.h/häh1}rf��(h3]h4]h5]h6]h9]uh;M"h<hh=]rg��(hFXN���(Requirement) Enable different classes of users commensurate with their roles rh��ÖÅri��}rj��(h!XN���(Requirement) Enable different classes of users commensurate with their roles h"jd��ubjv��)Årk��}rl��(h!X#���https://trac.dataone.org/ticket/391rm��h1}rn��(Urefurijm��h6]h5]h3]h4]h9]uh"jd��h=]ro��hFX#���https://trac.dataone.org/ticket/391rp��ÖÅrq��}rr��(h!U�h"jk��ubah/j��ubeubeubh#)Års��}rt��(h!U�h&Kh"jˆ��h-h.h/h0h1}ru��(h3]rv��X ���discussionrw��ah4]h5]h6]rx��Uid45ry��ah9]uh;M&h<hh=]rz��h?)År{��}r|��(h!X ���Discussionr}��h"js��h-h.h/hCh1}r~��(h3]h4]h5]h6]h9]uh;M&h<hh=]r��hFX ���DiscussionrÄ��ÖÅrÅ��}rÇ��(h!j}��h"j{��ubaubaubeubeubh#)ÅrÉ��}rÑ��(h!U�h"h+h-h.h/h0h1}rÖ��(h3]h4]h5]h6]rÜ��U conclusionrá��ah9]rà��hauh;M*h<hh=]râ��h?)Årä��}rã��(h!X ���Conclusionrå��h"jÉ��h-h.h/hCh1}rç��(h3]h4]h5]h6]h9]uh;M*h<hh=]ré��hFX ���Conclusionrè��ÖÅrê��}rë��(h!jå��h"jä��ubaubaubh#)Årí��}rì��(h!U�h"h+h-h.h/h0h1}rî��(h3]h4]h5]h6]rï��U referencesrñ��ah9]ró��hauh;M.h<hh=]rò��(h?)Årô��}rö��(h!X ���Referencesrõ��h"jí��h-h.h/hCh1}rú��(h3]h4]h5]h6]h9]uh;M.h<hh=]rù��hFX ���Referencesrû��ÖÅrü��}r†��(h!jõ��h"jô��ubaubhÜ)År°��}r¢��(h!X≈���Boyko, A., Kunze, J., Littman, J., Madden, L., Vargas, B. (2009). The BagIt File Packaging Format (V0.96). Retrieved April 2, 2010, from http://www.ietf.org/Internet-drafts/draft-kunze-bagit-04.txth"jí��h-h.h/häh1}r£��(h3]h4]h5]h6]h9]uh;M/h<hh=]r§��(hFXâ���Boyko, A., Kunze, J., Littman, J., Madden, L., Vargas, B. (2009). The BagIt File Packaging Format (V0.96). Retrieved April 2, 2010, from r•��ÖÅr¶��}rß��(h!Xâ���Boyko, A., Kunze, J., Littman, J., Madden, L., Vargas, B. (2009). The BagIt File Packaging Format (V0.96). Retrieved April 2, 2010, from h"j°��ubjv��)År®��}r©��(h!X<���http://www.ietf.org/Internet-drafts/draft-kunze-bagit-04.txtr™��h1}r´��(Urefurij™��h6]h5]h3]h4]h9]uh"j°��h=]r¨��hFX<���http://www.ietf.org/Internet-drafts/draft-kunze-bagit-04.txtr≠��ÖÅrÆ��}rØ��(h!U�h"j®��ubah/j��ubeubhÜ)År∞��}r±��(h!Xë���DataONE. (2010a). Metadata Attributes for Discovery. Retrieved April 2, 2010, from http://mule1.dataone.org/ArchitectureDocs/SearchMetadata.html.h"jí��h-h.h/häh1}r≤��(h3]h4]h5]h6]h9]uh;M3h<hh=]r≥��(hFXS���DataONE. (2010a). Metadata Attributes for Discovery. Retrieved April 2, 2010, from r¥��ÖÅrµ��}r∂��(h!XS���DataONE. (2010a). Metadata Attributes for Discovery. Retrieved April 2, 2010, from h"j∞��ubjv��)År∑��}r∏��(h!X=���http://mule1.dataone.org/ArchitectureDocs/SearchMetadata.htmlrπ��h1}r∫��(Urefurijπ��h6]h5]h3]h4]h9]uh"j∞��h=]rª��hFX=���http://mule1.dataone.org/ArchitectureDocs/SearchMetadata.htmlrº��ÖÅrΩ��}ræ��(h!U�h"j∑��ubah/j��ubhFX���.ÖÅrø��}r¿��(h!X���.h"j∞��ubeubhÜ)År¡��}r¬��(h!X���DataONE. (2010b). System Metadata. Retrieved April 2, 2010, from http://mule1.dataone.org/ArchitectureDocs/SystemMetadata.html.h"jí��h-h.h/häh1}r√��(h3]h4]h5]h6]h9]uh;M6h<hh=]rƒ��(hFXA���DataONE. (2010b). System Metadata. Retrieved April 2, 2010, from r≈��ÖÅr∆��}r«��(h!XA���DataONE. (2010b). System Metadata. Retrieved April 2, 2010, from h"j¡��ubjv��)År»��}r…��(h!X=���http://mule1.dataone.org/ArchitectureDocs/SystemMetadata.htmlr ��h1}rÀ��(Urefurij ��h6]h5]h3]h4]h9]uh"j¡��h=]rÃ��hFX=���http://mule1.dataone.org/ArchitectureDocs/SystemMetadata.htmlrÕ��ÖÅrŒ��}rœ��(h!U�h"j»��ubah/j��ubhFX���.ÖÅr–��}r—��(h!X���.h"j¡��ubeubhÜ)År“��}r”��(h!XÒ���Lagoze, C., Van de Sompel, H., Johnston, P., Nelson, M., Sanderson, R., Warner, S. (2008). Open Archives Initiative Object Reuse and Exchange: ORE User Guide - Primer. Retrieved April 2, 2010, from http://www.openarchives.org/ore/1.0/primer.h"jí��h-h.h/häh1}r‘��(h3]h4]h5]h6]h9]uh;M9h<hh=]r’��(hFX∆���Lagoze, C., Van de Sompel, H., Johnston, P., Nelson, M., Sanderson, R., Warner, S. (2008). Open Archives Initiative Object Reuse and Exchange: ORE User Guide - Primer. Retrieved April 2, 2010, from r÷��ÖÅr◊��}rÿ��(h!X∆���Lagoze, C., Van de Sompel, H., Johnston, P., Nelson, M., Sanderson, R., Warner, S. (2008). Open Archives Initiative Object Reuse and Exchange: ORE User Guide - Primer. Retrieved April 2, 2010, from h"j“��ubjv��)ÅrŸ��}r⁄��(h!X*���http://www.openarchives.org/ore/1.0/primerr€��h1}r‹��(Urefurij€��h6]h5]h3]h4]h9]uh"j“��h=]r›��hFX*���http://www.openarchives.org/ore/1.0/primerrfi��ÖÅrfl��}r‡��(h!U�h"jŸ��ubah/j��ubhFX���.ÖÅr·��}r‚��(h!X���.h"j“��ubeubhÜ)År„��}r‰��(h!Xº���PREMIS Editorial Committee. (2008). Data Dictionary for Preservation Metadata: PREMIS version 2.0. S.l. Retrieved April 2, 2010, from http://www.loc.gov/standards/premis/v2/premis-2-0.pdf.h"jí��h-h.h/häh1}rÂ��(h3]h4]h5]h6]h9]uh;M>h<hh=]rÊ��(hFXÜ���PREMIS Editorial Committee. (2008). Data Dictionary for Preservation Metadata: PREMIS version 2.0. S.l. Retrieved April 2, 2010, from rÁ��ÖÅrË��}rÈ��(h!XÜ���PREMIS Editorial Committee. (2008). Data Dictionary for Preservation Metadata: PREMIS version 2.0. S.l. Retrieved April 2, 2010, from h"j„��ubjv��)ÅrÍ��}rÎ��(h!X5���http://www.loc.gov/standards/premis/v2/premis-2-0.pdfrÏ��h1}rÌ��(UrefurijÏ��h6]h5]h3]h4]h9]uh"j„��h=]rÓ��hFX5���http://www.loc.gov/standards/premis/v2/premis-2-0.pdfrÔ��ÖÅr��}rÒ��(h!U�h"jÍ��ubah/j��ubhFX���.ÖÅrÚ��}rÛ��(h!X���.h"j„��ubeubeubeubh-h.h/h0h1}rÙ��(h3]h4]h5]h6]rı��Usystem-metadata-requirementsrˆ��ah9]r˜��hauh;Ksh<hh=]r¯��(h?)År˘��}r˙��(h!X���System Metadata Requirementsr˚��h"h)h-h.h/hCh1}r¸��(h3]h4]h5]h6]h9]uh;Ksh<hh=]r˝��hFX���System Metadata Requirementsr˛��ÖÅrˇ��}r���(h!j˚��h"j˘��ubaubhÜ)År��}r��(h!X.��For each of the high-level requirements identified, the relevant sections of the PREMIS data dictionary were identified, and missing, additional, mismatched aspects are identified in the text. The documentation for BagIt and OAI-ORE were consulted and their relevance to the requirement is also discussed in the text. Optionally, use cases relevant to the requirement are described, using science data specified in EML, Dryad, ORNL DAAC, and/or NBII formats as examples. The section on each requirement ends with a general discussion of the overall analysis.r��h"h)h-h.h/häh1}r��(h3]h4]h5]h6]h9]uh;Kuh<hh=]r��hFX.��For each of the high-level requirements identified, the relevant sections of the PREMIS data dictionary were identified, and missing, additional, mismatched aspects are identified in the text. The documentation for BagIt and OAI-ORE were consulted and their relevance to the requirement is also discussed in the text. Optionally, use cases relevant to the requirement are described, using science data specified in EML, Dryad, ORNL DAAC, and/or NBII formats as examples. The section on each requirement ends with a general discussion of the overall analysis.r��ÖÅr��}r��(h!j��h"j��ubaubh#)År ��}r ��(h!U�h"h)h-h.h/h0h1}r��(h3]h4]h5]h6]r��U4requirement-1-perform-replication-on-digital-objectsr ��ah9]r��h auh;Kh<hh=]r��(h?)År��}r��(h!X5���Requirement 1: Perform replication on digital objectsr��h"j ��h-h.h/hCh1}r��(h3]h4]h5]h6]h9]uh;Kh<hh=]r��hFX5���Requirement 1: Perform replication on digital objectsr��ÖÅr��}r��(h!j��h"j��ubaubh#)År��}r��(h!U�h&Kh"j ��h-h.h/h0h1}r��(h3]r��X���descriptionr��ah4]h5]h6]r��Udescriptionr��ah9]uh;KÇh<hh=]r��(h?)År ��}r!��(h!X���Descriptionr"��h"j��h-h.h/hCh1}r#��(h3]h4]h5]h6]h9]uh;KÇh<hh=]r$��hFX���Descriptionr%��ÖÅr&��}r'��(h!j"��h"j ��ubaubhÜ)År(��}r)��(h!XA��To increase accessibility and help ensure long-term preservation, the Coordinating Nodes will perform replications on digital objects. Systems metadata will be replicated at each of the three Coordinating Nodes, while datasets and their associated descriptive metadata will be replicated at a minimum of two Member Nodes.r*��h"j��h-h.h/häh1}r+��(h3]h4]h5]h6]h9]uh;KÑh<hh=]r,��hFXA��To increase accessibility and help ensure long-term preservation, the Coordinating Nodes will perform replications on digital objects. Systems metadata will be replicated at each of the three Coordinating Nodes, while datasets and their associated descriptive metadata will be replicated at a minimum of two Member Nodes.r-��ÖÅr.��}r/��(h!j*��h"j(��ubaubeubh#)År0��}r1��(h!U�h&Kh"j ��h-h.h/h0h1}r2��(h3]r3��X���what premis suggestsr4��ah4]h5]h6]r5��Uwhat-premis-suggestsr6��ah9]uh;Kãh<hh=]r7��(h?)År8��}r9��(h!X���What PREMIS suggestsr:��h"j0��h-h.h/hCh1}r;��(h3]h4]h5]h6]h9]uh;Kãh<hh=]r<��hFX���What PREMIS suggestsr=��ÖÅr>��}r?��(h!j:��h"j8��ubaubhÜ)År@��}rA��(h!XÄ��When a replication is performed, the DataONE system will need to record which object was replicated (1.1), the unique identifier of the new copy (1.1), where the replicate is stored in the system (1.7), information on the derivative relationship between the original object and the new one (1.10) [in PREMIS, replication of an object is defined as one type of a derivation relationship; see p.13], and information on the event that created the replicate such as the unique identifier of the event (2.1), type = replication (2.2), time (2.3), who performed the replication (2.6), and a link between the replicated object and the event (2.7).rB��h"j0��h-h.h/häh1}rC��(h3]h4]h5]h6]h9]uh;Kçh<hh=]rD��hFXÄ��When a replication is performed, the DataONE system will need to record which object was replicated (1.1), the unique identifier of the new copy (1.1), where the replicate is stored in the system (1.7), information on the derivative relationship between the original object and the new one (1.10) [in PREMIS, replication of an object is defined as one type of a derivation relationship; see p.13], and information on the event that created the replicate such as the unique identifier of the event (2.1), type = replication (2.2), time (2.3), who performed the replication (2.6), and a link between the replicated object and the event (2.7).rE��ÖÅrF��}rG��(h!jB��h"j@��ubaubeubh#)ÅrH��}rI��(h!U�h&Kh"j ��h-h.h/h0h1}rJ��(h3]rK��X���what bagit and oai-ore providerL��ah4]h5]h6]rM��Uwhat-bagit-and-oai-ore-providerN��ah9]uh;Kòh<hh=]rO��h?)ÅrP��}rQ��(h!X���What BagIt and OAI-ORE providerR��h"jH��h-h.h/hCh1}rS��(h3]h4]h5]h6]h9]uh;Kòh<hh=]rT��hFX���What BagIt and OAI-ORE providerU��ÖÅrV��}rW��(h!jR��h"jP��ubaubaubh#)ÅrX��}rY��(h!U�h&Kh"j ��h-h.h/h0h1}rZ��(h3]r[��X"���dataone use cases and requirementsr\��ah4]h5]h6]r]��U"dataone-use-cases-and-requirementsr^��ah9]uh;Kõh<hh=]r_��(h?)År`��}ra��(h!X"���DataONE use cases and requirementsrb��h"jX��h-h.h/hCh1}rc��(h3]h4]h5]h6]h9]uh;Kõh<hh=]rd��hFX"���DataONE use cases and requirementsre��ÖÅrf��}rg��(h!jb��h"j`��ubaubhÜ)Årh��}ri��(h!XN���(Requirement) System supports data storage https://trac.dataone.org/ticket/383rj��h"jX��h-h.h/häh1}rk��(h3]h4]h5]h6]h9]uh;Kùh<hh=]rl��(hFX+���(Requirement) System supports data storage rm��ÖÅrn��}ro��(h!X+���(Requirement) System supports data storage h"jh��ubjv��)Årp��}rq��(h!X#���https://trac.dataone.org/ticket/383rr��h1}rs��(Urefurijr��h6]h5]h3]h4]h9]uh"jh��h=]rt��hFX#���https://trac.dataone.org/ticket/383ru��ÖÅrv��}rw��(h!U�h"jp��ubah/j��ubeubhÜ)Årx��}ry��(h!X���(Requirement) The infrastructure must survive destruction of one or more data storage nodes https://trac.dataone.org/ticket/411h"jX��h-h.h/häh1}rz��(h3]h4]h5]h6]h9]uh;Küh<hh=]r{��(hFX\���(Requirement) The infrastructure must survive destruction of one or more data storage nodes r|��ÖÅr}��}r~��(h!X\���(Requirement) The infrastructure must survive destruction of one or more data storage nodes h"jx��ubjv��)År��}rÄ��(h!X#���https://trac.dataone.org/ticket/411rÅ��h1}rÇ��(UrefurijÅ��h6]h5]h3]h4]h9]uh"jx��h=]rÉ��hFX#���https://trac.dataone.org/ticket/411rÑ��ÖÅrÖ��}rÜ��(h!U�h"j��ubah/j��ubeubhÜ)Årá��}rà��(h!Xs���(Requirement) Data and metadata is replicated to at least one other Member Node https://trac.dataone.org/ticket/433h"jX��h-h.h/häh1}râ��(h3]h4]h5]h6]h9]uh;K¢h<hh=]rä��(hFXP���(Requirement) Data and metadata is replicated to at least one other Member Node rã��ÖÅrå��}rç��(h!XP���(Requirement) Data and metadata is replicated to at least one other Member Node h"já��ubjv��)Åré��}rè��(h!X#���https://trac.dataone.org/ticket/433rê��h1}rë��(Urefurijê��h6]h5]h3]h4]h9]uh"já��h=]rí��hFX#���https://trac.dataone.org/ticket/433rì��ÖÅrî��}rï��(h!U�h"jé��ubah/j��ubeubeubh#)Årñ��}ró��(h!U�h&Kh"j ��h-h.h/h0h1}rò��(h3]rô��X ���discussionrö��ah4]h5]h6]rõ��U discussionrú��ah9]uh;K¶h<hh=]rù��h?)Årû��}rü��(h!X ���Discussionr†��h"jñ��h-h.h/hCh1}r°��(h3]h4]h5]h6]h9]uh;K¶h<hh=]r¢��hFX ���Discussionr£��ÖÅr§��}r•��(h!j†��h"jû��ubaubaubeubh'h#)År¶��}rß��(h!U�h"h)h-h.h/h0h1}r®��(h3]h4]h5]h6]r©��UDrequirement-3-record-specific-types-of-relationships-between-objectsr™��ah9]r´��hauh;K›h<hh=]r¨��(h?)År≠��}rÆ��(h!XE���Requirement 3: Record specific types of relationships between objectsrØ��h"j¶��h-h.h/hCh1}r∞��(h3]h4]h5]h6]h9]uh;K›h<hh=]r±��hFXE���Requirement 3: Record specific types of relationships between objectsr≤��ÖÅr≥��}r¥��(h!jØ��h"j≠��ubaubh#)Årµ��}r∂��(h!U�h&Kh"j¶��h-h.h/h0h1}r∑��(h3]r∏��X���descriptionrπ��ah4]h5]h6]r∫��Uid6rª��ah9]uh;K‡h<hh=]rº��h?)ÅrΩ��}ræ��(h!X���Descriptionrø��h"jµ��h-h.h/hCh1}r¿��(h3]h4]h5]h6]h9]uh;K‡h<hh=]r¡��hFX���Descriptionr¬��ÖÅr√��}rƒ��(h!jø��h"jΩ��ubaubaubh#)År≈��}r∆��(h!U�h&Kh"j¶��h-h.h/h0h1}r«��(h3]r»��X���what premis suggestsr…��ah4]h5]h6]r ��Uid7rÀ��ah9]uh;K‰h<hh=]rÃ��(h?)ÅrÕ��}rŒ��(h!X���What PREMIS suggestsrœ��h"j≈��h-h.h/hCh1}r–��(h3]h4]h5]h6]h9]uh;K‰h<hh=]r—��hFX���What PREMIS suggestsr“��ÖÅr”��}r‘��(h!jœ��h"jÕ��ubaubhÜ)År’��}r÷��(h!X¬��PREMIS suggest the system record as semantic units to define structural, derivaton and dependency relationships. For structural relationships, which "show relationships between parts of objects" (p.13), characterizations of these relationship types are recorded with a description of the relationship type, such as "structural" (1.10.1), relationship sub-type such as "is a part of" (1.10.2), and the unique identifier of the related object (1.10.3).r◊��h"j≈��h-h.h/häh1}rÿ��(h3]h4]h5]h6]h9]uh;KÊh<hh=]rŸ��hFX¬��PREMIS suggest the system record as semantic units to define structural, derivaton and dependency relationships. For structural relationships, which "show relationships between parts of objects" (p.13), characterizations of these relationship types are recorded with a description of the relationship type, such as "structural" (1.10.1), relationship sub-type such as "is a part of" (1.10.2), and the unique identifier of the related object (1.10.3).r⁄��ÖÅr€��}r‹��(h!j◊��h"j’��ubaubhÜ)År›��}rfi��(h!Xœ���Derivative relationships "result from the replication or transformation of an object" (p.13). Because this type of relationship involves an event, the system must record the unique event identifier (1.10.4).rfl��h"j≈��h-h.h/häh1}r‡��(h3]h4]h5]h6]h9]uh;KÌh<hh=]r·��hFXœ���Derivative relationships "result from the replication or transformation of an object" (p.13). Because this type of relationship involves an event, the system must record the unique event identifier (1.10.4).r‚��ÖÅr„��}r‰��(h!jfl��h"j›��ubaubhÜ)ÅrÂ��}rÊ��(h!Xw��Dependency relationships exist "when one object requires another to support its functino,m delivery, or coherence of content". Examples include a data type definition needed to render another file or modules needed by a software program that is required to render an object. 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METS?]r��h"jÒ��h-h.h/häh1}r��(h3]h4]h5]h6]h9]uh;M7h<hh=]r��hFXw���Relationships , entities , citation, life science identifiers [exchange of digital objects between repositories? METS?]r��ÖÅr��}r��(h!j��h"j��ubaubeubh#)År ��}r ��(h!U�h&Kh"j‚��h-h.h/h0h1}r��(h3]r��X���what premis suggestsr ��ah4]h5]h6]r��Uid17r��ah9]uh;M<h<hh=]r��(h?)År��}r��(h!X���What PREMIS suggestsr��h"j ��h-h.h/hCh1}r��(h3]h4]h5]h6]h9]uh;M<h<hh=]r��hFX���What PREMIS suggestsr��ÖÅr��}r��(h!j��h"j��ubaubhÜ)År��}r��(h!XÔ��Potential users of digital objects need to know of any structural, derivative, and dependency relationships properties in order to re-use an object. For example, databases are often stored in repsotiories as two files: one for content and oen for the schema. The user needs to access both files to re-use the databse. The suggested PREMIS semantic units for relationships are described under general requirement 3. 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Also, it needs to record metadata on the event that created the newly migrated object such as unique identifier (2.1), type = migration (2.2), time (2.3), who performed the migration (2.6), and a link between the migrated object and the event (2.7).rv��h"j]��h-h.h/häh1}rw��(h3]h4]h5]h6]h9]uh;K¿h<hh=]rx��hFXb��When performing a migration due to format obsolescence, the DataONE system will need to record the following metadata: which object is being replicated (1.1), what is the unique identifier of the new object (1.1), where in the system is the new object stored (1.7), information on the derivative relationship between the original object and the new one (1.10). Also, it needs to record metadata on the event that created the newly migrated object such as unique identifier (2.1), type = migration (2.2), time (2.3), who performed the migration (2.6), and a link between the migrated object and the event (2.7).ry��ÖÅrz��}r{��(h!jv��h"jt��ubaubhÜ)År|��}r}��(h!Xà���When migration for physical media obsolescence occurs, the system should record where the object is now located (1.7.1 contentLocation).r~��h"j]��h-h.h/häh1}r��(h3]h4]h5]h6]h9]uh;K…h<hh=]rÄ��hFXà���When migration for physical media obsolescence occurs, the system should record where the object is now located (1.7.1 contentLocation).rÅ��ÖÅrÇ��}rÉ��(h!j~��h"j|��ubaubeubh#)ÅrÑ��}rÖ��(h!U�h&Kh"h'h-h.h/h0h1}rÜ��(h3]rá��jL��ah4]h5]h6]rà��Uid3râ��ah9]uh;KÕh<hh=]rä��h?)Årã��}rå��(h!X���What BagIt and OAI-ORE providerç��h"jÑ��h-h.h/hCh1}ré��(h3]h4]h5]h6]h9]uh;KÕh<hh=]rè��hFX���What BagIt and OAI-ORE providerê��ÖÅrë��}rí��(h!jç��h"jã��ubaubaubh#)Årì��}rî��(h!U�h&Kh"h'h-h.h/h0h1}rï��(h3]rñ��j\��ah4]h5]h6]ró��Uid4rò��ah9]uh;K–h<hh=]rô��(h?)Årö��}rõ��(h!X"���DataONE use cases and requirementsrú��h"jì��h-h.h/hCh1}rù��(h3]h4]h5]h6]h9]uh;K–h<hh=]rû��hFX"���DataONE use cases and requirementsrü��ÖÅr†��}r°��(h!jú��h"jö��ubaubhÜ)År¢��}r£��(h!Xp���(Requirement) The infrastructure must support long term preservation of data https://trac.dataone.org/ticket/410h"jì��h-h.h/häh1}r§��(h3]h4]h5]h6]h9]uh;K“h<hh=]r•��(hFXM���(Requirement) The infrastructure must support long term preservation of data r¶��ÖÅrß��}r®��(h!XM���(Requirement) The infrastructure must support long term preservation of data h"j¢��ubjv��)År©��}r™��(h!X#���https://trac.dataone.org/ticket/410r´��h1}r¨��(Urefurij´��h6]h5]h3]h4]h9]uh"j¢��h=]r≠��hFX#���https://trac.dataone.org/ticket/410rÆ��ÖÅrØ��}r∞��(h!U�h"j©��ubah/j��ubeubhÜ)År±��}r≤��(h!Xb���(Requirement) Maintain original copies of all science metadata https://trac.dataone.org/ticket/439h"jì��h-h.h/häh1}r≥��(h3]h4]h5]h6]h9]uh;K’h<hh=]r¥��(hFX?���(Requirement) Maintain original copies of all science metadata rµ��ÖÅr∂��}r∑��(h!X?���(Requirement) Maintain original copies of all science metadata h"j±��ubjv��)År∏��}rπ��(h!X#���https://trac.dataone.org/ticket/439r∫��h1}rª��(Urefurij∫��h6]h5]h3]h4]h9]uh"j±��h=]rº��hFX#���https://trac.dataone.org/ticket/439rΩ��ÖÅræ��}rø��(h!U�h"j∏��ubah/j��ubeubeubh#)År¿��}r¡��(h!U�h&Kh"h'h-h.h/h0h1}r¬��(h3]r√��jö��ah4]h5]h6]rƒ��Uid5r≈��ah9]uh;KŸh<hh=]r∆��h?)År«��}r»��(h!X ���Discussionr…��h"j¿��h-h.h/hCh1}r ��(h3]h4]h5]h6]h9]uh;KŸh<hh=]rÀ��hFX ���DiscussionrÃ��ÖÅrÕ��}rŒ��(h!j…��h"j«��ubaubaubeubh-h.h/h0h1}rœ��(h3]r–��j��ah4]h5]h6]r—��Uid1r“��ah9]uh;KÆh<hh=]r”��(h?)År‘��}r’��(h!X���Descriptionr÷��h"h$h-h.h/hCh1}r◊��(h3]h4]h5]h6]h9]uh;KÆh<hh=]rÿ��hFX���DescriptionrŸ��ÖÅr⁄��}r€��(h!j÷��h"j‘��ubaubhÜ)År‹��}r›��(h!X)��Migration is one kind of preservation strategy that Coordinating Nodes may choose to use when a particular format of an object is in danger of obsolescence. 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requirements".h1}rˇ��(h3]h4]h5]h6]h9]uh"j¯��h=]r� ��hFXE���Duplicate implicit target name: "dataone use cases and requirements".r ��ÖÅr ��}r ��(h!U�h"j˝��ubah/häubaubh)År ��}r ��(h!U�h"j��h-h.h/j‰��h1}r ��(h3]UlevelKh6]h5]r ��j��aUsourceh.h4]h9]UlineMsUtypejÁ��uh;Msh<hh=]r ��hÜ)År ��}r ��(h!X-���Duplicate implicit target name: "discussion".h1}r ��(h3]h4]h5]h6]h9]uh"j ��h=]r ��hFX-���Duplicate implicit target name: "discussion".r ��ÖÅr ��}r ��(h!U�h"j ��ubah/häubaubh)År ��}r ��(h!U�h"j7��h-h.h/j‰��h1}r ��(h3]UlevelKh6]h5]r ��j=��aUsourceh.h4]h9]UlineM{UtypejÁ��uh;M{h<hh=]r ��hÜ)År ��}r ��(h!X.���Duplicate implicit target name: "description".h1}r ��(h3]h4]h5]h6]h9]uh"j ��h=]r ��hFX.���Duplicate implicit target name: "description".r ��ÖÅr ��}r ��(h!U�h"j ��ubah/häubaubh)År ��}r ��(h!U�h"jO��h-h.h/j‰��h1}r ��(h3]UlevelKh6]h5]r ��jU��aUsourceh.h4]h9]UlineMÖUtypejÁ��uh;MÖh<hh=]r ��hÜ)År! ��}r" ��(h!X7���Duplicate implicit target name: "what premis suggests".h1}r# ��(h3]h4]h5]h6]h9]uh"j ��h=]r$ ��hFX7���Duplicate implicit target name: "what premis suggests".r% ��ÖÅr& ��}r' ��(h!U�h"j! ��ubah/häubaubh)År( ��}r) ��(h!U�h"jg��h-h.h/j‰��h1}r* ��(h3]UlevelKh6]h5]r+ ��jm��aUsourceh.h4]h9]UlineMòUtypejÁ��uh;Mòh<hh=]r, ��hÜ)År- ��}r. ��(h!XA���Duplicate implicit target name: "what bagit and oai-ore provide".h1}r/ ��(h3]h4]h5]h6]h9]uh"j( ��h=]r0 ��hFXA���Duplicate implicit target name: "what bagit and oai-ore provide".r1 ��ÖÅr2 ��}r3 ��(h!U�h"j- ��ubah/häubaubh)År4 ��}r5 ��(h!U�h"jw��h-h.h/j‰��h1}r6 ��(h3]UlevelKh6]h5]r7 ��j}��aUsourceh.h4]h9]UlineMõUtypejÁ��uh;Mõh<hh=]r8 ��hÜ)År9 ��}r: ��(h!XE���Duplicate implicit target name: "dataone use cases and requirements".h1}r; ��(h3]h4]h5]h6]h9]uh"j4 ��h=]r< ��hFXE���Duplicate implicit target name: "dataone use cases and requirements".r= ��ÖÅr> ��}r? ��(h!U�h"j9 ��ubah/häubaubh)År@ ��}rA ��(h!U�h"jƒ��h-h.h/j‰��h1}rB ��(h3]UlevelKh6]h5]rC ��j ��aUsourceh.h4]h9]UlineM©UtypejÁ��uh;M©h<hh=]rD ��hÜ)ÅrE ��}rF ��(h!X-���Duplicate implicit target name: "discussion".h1}rG ��(h3]h4]h5]h6]h9]uh"j@ ��h=]rH ��hFX-���Duplicate implicit target name: "discussion".rI ��ÖÅrJ ��}rK ��(h!U�h"jE ��ubah/häubaubh)ÅrL ��}rM ��(h!U�h"j„��h-h.h/j‰��h1}rN ��(h3]UlevelKh6]h5]rO ��jÈ��aUsourceh.h4]h9]UlineM∞UtypejÁ��uh;M∞h<hh=]rP ��hÜ)ÅrQ ��}rR ��(h!X.���Duplicate implicit target name: "description".h1}rS ��(h3]h4]h5]h6]h9]uh"jL ��h=]rT ��hFX.���Duplicate implicit target name: "description".rU ��ÖÅrV ��}rW ��(h!U�h"jQ ��ubah/häubaubh)ÅrX ��}rY ��(h!U�h"jÛ��h-h.h/j‰��h1}rZ ��(h3]UlevelKh6]h5]r[ ��j˘��aUsourceh.h4]h9]UlineM¥UtypejÁ��uh;M¥h<hh=]r\ ��hÜ)År] ��}r^ ��(h!X7���Duplicate implicit target name: "what premis suggests".h1}r_ ��(h3]h4]h5]h6]h9]uh"jX ��h=]r` ��hFX7���Duplicate implicit target name: "what premis suggests".ra ��ÖÅrb ��}rc ��(h!U�h"j] ��ubah/häubaubh)Ård ��}re ��(h!U�h"j��h-h.h/j‰��h1}rf ��(h3]UlevelKh6]h5]rg ��j��aUsourceh.h4]h9]UlineMΩUtypejÁ��uh;MΩh<hh=]rh ��hÜ)Åri ��}rj ��(h!XA���Duplicate implicit target name: "what bagit and oai-ore provide".h1}rk ��(h3]h4]h5]h6]h9]uh"jd ��h=]rl ��hFXA���Duplicate implicit target name: "what bagit and oai-ore provide".rm ��ÖÅrn ��}ro ��(h!U�h"ji ��ubah/häubaubh)Årp ��}rq ��(h!U�h"j��h-h.h/j‰��h1}rr ��(h3]UlevelKh6]h5]rs ��j!��aUsourceh.h4]h9]UlineM¿UtypejÁ��uh;M¿h<hh=]rt ��hÜ)Åru ��}rv ��(h!XE���Duplicate implicit target name: "dataone use cases and requirements".h1}rw ��(h3]h4]h5]h6]h9]uh"jp ��h=]rx ��hFXE���Duplicate implicit target name: "dataone use cases and requirements".ry ��ÖÅrz ��}r{ ��(h!U�h"ju ��ubah/häubaubh)År| ��}r} ��(h!U�h"jI��h-h.h/j‰��h1}r~ ��(h3]UlevelKh6]h5]r ��jO��aUsourceh.h4]h9]UlineM…UtypejÁ��uh;M…h<hh=]rÄ ��hÜ)ÅrÅ ��}rÇ ��(h!X-���Duplicate implicit target name: "discussion".h1}rÉ ��(h3]h4]h5]h6]h9]uh"j| ��h=]rÑ ��hFX-���Duplicate implicit target name: "discussion".rÖ ��ÖÅrÜ ��}rá ��(h!U�h"jÅ ��ubah/häubaubh)Årà ��}râ ��(h!U�h"jh��h-h.h/j‰��h1}rä ��(h3]UlevelKh6]h5]rã ��jn��aUsourceh.h4]h9]UlineM–UtypejÁ��uh;M–h<hh=]rå ��hÜ)Årç ��}ré ��(h!X.���Duplicate implicit target name: "description".h1}rè ��(h3]h4]h5]h6]h9]uh"jà ��h=]rê ��hFX.���Duplicate implicit target name: "description".rë ��ÖÅrí ��}rì ��(h!U�h"jç ��ubah/häubaubh)Årî ��}rï ��(h!U�h"jÄ��h-h.h/j‰��h1}rñ ��(h3]UlevelKh6]h5]ró ��jÜ��aUsourceh.h4]h9]UlineM◊UtypejÁ��uh;M◊h<hh=]rò ��hÜ)Årô ��}rö ��(h!X7���Duplicate implicit target name: "what premis suggests".h1}rõ ��(h3]h4]h5]h6]h9]uh"jî ��h=]rú ��hFX7���Duplicate implicit target name: "what premis suggests".rù ��ÖÅrû ��}rü ��(h!U�h"jô ��ubah/häubaubh)År† ��}r° ��(h!U�h"j®��h-h.h/j‰��h1}r¢ ��(h3]UlevelKh6]h5]r£ ��jÆ��aUsourceh.h4]h9]UlineMıUtypejÁ��uh;Mıh<hh=]r§ ��hÜ)År• ��}r¶ ��(h!XA���Duplicate implicit target name: "what bagit and oai-ore provide".h1}rß ��(h3]h4]h5]h6]h9]uh"j† ��h=]r® ��hFXA���Duplicate implicit target name: "what bagit and oai-ore provide".r© ��ÖÅr™ ��}r´ ��(h!U�h"j• ��ubah/häubaubh)År¨ ��}r≠ ��(h!U�h"j∏��h-h.h/j‰��h1}rÆ ��(h3]UlevelKh6]h5]rØ ��jæ��aUsourceh.h4]h9]UlineM¯UtypejÁ��uh;M¯h<hh=]r∞ ��hÜ)År± ��}r≤ ��(h!XE���Duplicate implicit target name: "dataone use cases and requirements".h1}r≥ ��(h3]h4]h5]h6]h9]uh"j¨ ��h=]r¥ ��hFXE���Duplicate implicit target name: "dataone use cases and requirements".rµ ��ÖÅr∂ ��}r∑ ��(h!U�h"j± ��ubah/häubaubh)År∏ ��}rπ ��(h!U�h"jÊ��h-h.h/j‰��h1}r∫ ��(h3]UlevelKh6]h5]rª ��jÏ��aUsourceh.h4]h9]UlineMUtypejÁ��uh;Mh<hh=]rº ��hÜ)ÅrΩ ��}ræ ��(h!X-���Duplicate implicit target name: "discussion".h1}rø ��(h3]h4]h5]h6]h9]uh"j∏ ��h=]r¿ ��hFX-���Duplicate implicit target name: "discussion".r¡ ��ÖÅr¬ ��}r√ ��(h!U�h"jΩ ��ubah/häubaubh)Årƒ ��}r≈ ��(h!U�h"j��h-h.h/j‰��h1}r∆ ��(h3]UlevelKh6]h5]r« ��j��aUsourceh.h4]h9]UlineMUtypejÁ��uh;Mh<hh=]r» ��hÜ)År… ��}r ��(h!X.���Duplicate implicit target name: "description".h1}rÀ ��(h3]h4]h5]h6]h9]uh"jƒ ��h=]rà ��hFX.���Duplicate implicit target name: "description".rÕ ��ÖÅrŒ ��}rœ ��(h!U�h"j… ��ubah/häubaubh)År– ��}r— ��(h!U�h"j��h-h.h/j‰��h1}r“ ��(h3]UlevelKh6]h5]r” ��j#��aUsourceh.h4]h9]UlineMUtypejÁ��uh;Mh<hh=]r‘ ��hÜ)År’ ��}r÷ ��(h!X7���Duplicate implicit target name: "what premis suggests".h1}r◊ ��(h3]h4]h5]h6]h9]uh"j– ��h=]rÿ ��hFX7���Duplicate implicit target name: "what premis suggests".rŸ ��ÖÅr⁄ ��}r€ ��(h!U�h"j’ ��ubah/häubaubh)År‹ ��}r› ��(h!U�h"j5��h-h.h/j‰��h1}rfi ��(h3]UlevelKh6]h5]rfl ��j;��aUsourceh.h4]h9]UlineMUtypejÁ��uh;Mh<hh=]r‡ ��hÜ)År· ��}r‚ ��(h!XA���Duplicate implicit target name: "what bagit and oai-ore provide".h1}r„ ��(h3]h4]h5]h6]h9]uh"j‹ ��h=]r‰ ��hFXA���Duplicate implicit target name: "what bagit and oai-ore provide".r ��ÖÅrÊ ��}rÁ ��(h!U�h"j· ��ubah/häubaubh)ÅrË ��}rÈ ��(h!U�h"jE��h-h.h/j‰��h1}rÍ ��(h3]UlevelKh6]h5]rÎ ��jK��aUsourceh.h4]h9]UlineMUtypejÁ��uh;Mh<hh=]rÏ ��hÜ)ÅrÌ ��}rÓ ��(h!XE���Duplicate implicit target name: "dataone use cases and requirements".h1}rÔ ��(h3]h4]h5]h6]h9]uh"jË ��h=]r ��hFXE���Duplicate implicit target name: "dataone use cases and requirements".rÒ ��ÖÅrÚ ��}rÛ ��(h!U�h"jÌ 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