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<span class='bold'>Warning:</span> These documents are under active
development and subject to change (version 2.1.0-beta).<br />
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<div class="section" id="dataone-architecture">
<h1>DataONE Architecture<a class="headerlink" href="#dataone-architecture" title="Permalink to this headline">¶</a></h1>
<p>The Data Observation Network for Earth (<a class="reference external" href="http://www.dataone.org/">DataONE</a>) is an <a class="reference external" href="http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=0830944">NSF funded project</a>
in the DataNet program charged with implementing and deploying core services
and infrastructure to improve the long term accessibility and re-use of data
collected through NSF funded and other research projects.</p>
<p>These documents provide the reference for implementation of services and tools
that together form the DataONE cyberinfrastructure.</p>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p>These documents refer to the current development (trunk) version of the API
documentation. Specific versions of the documentation are available on
<a class="reference external" href="http://releases.dataone.org/online/">releases.dataone.org</a>.</p>
<p class="last">Please see <a class="reference external" href="http://releases.dataone.org/online/api-documentation-v1.2.0">Version 1.2</a> for documentation of the currently deployed
infrastructure.</p>
</div>
<p>The source for these documents is located in the <a class="reference external" href="https://repository.dataone.org/documents/Projects/cicore/architecture/api-documentation/">subversion repository</a>. For
hints on editing, please review <a class="reference internal" href="about.html"><span class="doc">About These Documents</span></a>. The HTML version of the document
is generated from the current version of the source documents and is available
from:</p>
<blockquote>
<div><a class="reference external" href="https://purl.dataone.org/architecture-dev">https://purl.dataone.org/architecture-dev</a></div></blockquote>
<div class="section" id="design-documents">
<h2>Design Documents<a class="headerlink" href="#design-documents" title="Permalink to this headline">¶</a></h2>
<div class="toctree-wrapper compound">
<ul>
<li class="toctree-l1"><a class="reference internal" href="overview.html">DataONE Overview</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/userscenarios.html">User Scenarios</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/DataPackage.html">Data Packaging</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/SearchMetadata.html">Content Discovery</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/ExternalContent.html">Referencing Content External to DataONE</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/PreservationStrategy.html">DataONE Preservation Strategy</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/ReplicationOverview.html">Replication Overview</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/ContentMutability.html">Mutability of Content in DataONE</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/ContentImmutability.html">Immutability of Content in DataONE</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/ContentImmutability.html#summary">Summary</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/PIDs.html">Identifiers in DataONE</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/Authentication.html">Identity Management and Authenticated Session Management</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/Authorization.html">Authorization in DataONE</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/AuthorizationAndAuthentication.html">Authorization and Authentication in DataONE</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/search_auth.html">Supporting Access Control in Search</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/SystemMetadata.html">System Metadata</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/SystemMetadataAnalysis.html">Getting a Handle on Systems Metadata for the Long Haul</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/SysmetaLifecycle.html">Natural History of System Metadata</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/itk-analysis.html">Analysis and Modeling Tools</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/itk-overview.html">Investigator Toolkit</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/usecases.html">Use Cases</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/Serialization.html">Serialization of Types for Transfer Over HTTP</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/logging.html">Event Logging and Reporting</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/NodeList.html">NodeList</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/querying_content.html">Querying DataONE</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/security-plan.html">DataONE Cybersecurity Plan</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/CoordinatingNodeInternals.html">Coordinating Node Internals</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/LogAggregator.html">Log Aggregation Overview</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/MemberNodeServicesRegistration.html">(Proposal) Member Node Service Registration</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/what_is_it.html">What is This Thing?</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/Versions.html">Supporting multiple API versions</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/VeryLargeDataPackage.html">Very Large Data Packages</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/geohash.html">Spatial Search and Plotting Using Geohashes</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/userscenarios.html">User Scenarios</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/usecases.html">Use Cases</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/NodeIdentity.html">Node Identity and Registration</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/WhatIsData.html">What is Data (DataONE Perspective)?</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/DataPackage.html">Data Packaging</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/PreservationStrategy.html">DataONE Preservation Strategy</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/ReplicationOverview.html">Replication Overview</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/ContentMutability.html">Mutability of Content in DataONE</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/PIDs.html">Identifiers in DataONE</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/SearchMetadata.html">Content Discovery</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/querying_content.html">Querying DataONE</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/CitationManagerSupport.html">Supporting Online Citation Managers through COinS</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/security-plan.html">DataONE Cybersecurity Plan</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/Authentication.html">Identity Management and Authenticated Session Management</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/Authorization.html">Authorization in DataONE</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/search_auth.html">Supporting Access Control in Search</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/SystemMetadata.html">System Metadata</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/SystemMetadataAnalysis.html">Getting a Handle on Systems Metadata for the Long Haul</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/SysmetaLifecycle.html">Natural History of System Metadata</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/Serialization.html">Serialization of Types for Transfer Over HTTP</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/NodeList.html">NodeList</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/CoordinatingNodeInternals.html">Coordinating Node Internals</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/logging.html">Event Logging and Reporting</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/LogAggregator.html">Log Aggregation Overview</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/UsageStatistics.html">DataONE Usage Statistics</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/itk-analysis.html">Analysis and Modeling Tools</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/itk-overview.html">Investigator Toolkit</a></li>
<li class="toctree-l1"><a class="reference internal" href="design/what_is_it.html">What is This Thing?</a></li>
</ul>
</div>
</div>
<div class="section" id="api-reference">
<h2>API Reference<a class="headerlink" href="#api-reference" title="Permalink to this headline">¶</a></h2>
<div class="toctree-wrapper compound">
<ul>
<li class="toctree-l1"><a class="reference internal" href="apis/index.html">DataONE APIs</a><ul>
<li class="toctree-l2"><a class="reference internal" href="apis/rest_comms.html">REST Interface Overview</a><ul>
<li class="toctree-l3"><a class="reference internal" href="apis/rest_comms.html#message-serialization">Message Serialization</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/rest_comms.html#parameters-in-requests">Parameters in Requests</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="apis/MN_APIs.html">Member Node APIs</a><ul>
<li class="toctree-l3"><a class="reference internal" href="apis/MN_APIs.html#module-MNCore">Core API</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/MN_APIs.html#module-MNRead">Read API</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/MN_APIs.html#module-MNQuery">Query API</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/MN_APIs.html#module-MNView">View API</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/MN_APIs.html#module-MNPackage">Package API</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/MN_APIs.html#module-MNAuthorization">Authorization API</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/MN_APIs.html#module-MNStorage">Storage API</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/MN_APIs.html#replication-api">Replication API</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="apis/CN_APIs.html">Coordinating Node APIs</a><ul>
<li class="toctree-l3"><a class="reference internal" href="apis/CN_APIs.html#module-CNDiagnostic">Diagnostic API</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/CN_APIs.html#module-CNCore">Core API</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/CN_APIs.html#module-CNRead">Read API</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/CN_APIs.html#module-CNView">View API</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/CN_APIs.html#module-CNAuthorization">Authorization API</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/CN_APIs.html#module-CNIdentity">Identity API</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/CN_APIs.html#module-CNReplication">Replication API</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/CN_APIs.html#module-CNRegister">Register API</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="apis/ITK_APIs.html">Investigator Toolkit APIs</a><ul>
<li class="toctree-l3"><a class="reference internal" href="apis/ITK_APIs.html#java-tools">Java Tools</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/ITK_APIs.html#python-tools">Python Tools</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="apis/Types.html">Version 1.0 Data Types</a></li>
<li class="toctree-l2"><a class="reference internal" href="apis/Types11.html">Version 1.1 Data Types (extend v1.0)</a></li>
<li class="toctree-l2"><a class="reference internal" href="apis/Types2.html">Version 2.0 Data Types (extend v1.1)</a></li>
<li class="toctree-l2"><a class="reference internal" href="apis/Exceptions.html">Exceptions Raised by MN and CN APIs</a><ul>
<li class="toctree-l3"><a class="reference internal" href="apis/Exceptions.html#general">General</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/Exceptions.html#http-exception-handling-codes">HTTP Exception Handling Codes</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/Exceptions.html#serializing-exceptions">Serializing Exceptions</a></li>
<li class="toctree-l3"><a class="reference internal" href="apis/Exceptions.html#the-exceptions">The Exceptions</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="apis/monitoring.html">Infrastructure Monitoring APIs</a></li>
<li class="toctree-l2"><a class="reference internal" href="apis/CN_internal_APIs.html">APIs Internal to Coordinating Nodes</a></li>
</ul>
</li>
</ul>
</div>
</div>
<div class="section" id="implementation-notes">
<h2>Implementation Notes<a class="headerlink" href="#implementation-notes" title="Permalink to this headline">¶</a></h2>
<div class="toctree-wrapper compound">
<ul>
<li class="toctree-l1"><a class="reference internal" href="implementation/index.html">Implementation Notes</a><ul>
<li class="toctree-l2"><a class="reference internal" href="implementation/roadmap.html">Implementation Roadmap</a></li>
<li class="toctree-l2"><a class="reference internal" href="implementation/components.html">Components of the DataONE Infrastructure</a></li>
<li class="toctree-l2"><a class="reference internal" href="implementation/prioritization.html">Implementation Priority</a></li>
<li class="toctree-l2"><a class="reference internal" href="implementation/integration-testing.html">Integration Testing</a></li>
<li class="toctree-l2"><a class="reference internal" href="implementation/versions.html">Infrastructure Versions</a></li>
</ul>
</li>
</ul>
</div>
</div>
<div class="section" id="notes-and-miscellanea">
<h2>Notes and Miscellanea<a class="headerlink" href="#notes-and-miscellanea" title="Permalink to this headline">¶</a></h2>
<div class="toctree-wrapper compound">
<ul>
<li class="toctree-l1"><a class="reference internal" href="notes/index.html">General Design and Implementation Notes</a><ul>
<li class="toctree-l2"><a class="reference internal" href="notes/LoggingAndPrivacy.html">Logging and Privacy concerns</a></li>
<li class="toctree-l2"><a class="reference internal" href="notes/DataAndMetadata.html">Cross Domain Indexing and Access for Data and Metadata</a></li>
<li class="toctree-l2"><a class="reference internal" href="notes/Replication.html">Replication Notes</a></li>
<li class="toctree-l2"><a class="reference internal" href="notes/MN_api_notes_comments.html">Notes for MN API</a></li>
<li class="toctree-l2"><a class="reference internal" href="notes/cn_requirements.html">Coordinating Node Requirements</a></li>
<li class="toctree-l2"><a class="reference internal" href="notes/ApacheConfiguration.html">Apache Configuration for DataONE Services</a></li>
<li class="toctree-l2"><a class="reference internal" href="notes/sysmeta_mutation_20110831.html">Mutability of Metadata</a></li>
<li class="toctree-l2"><a class="reference internal" href="notes/selectors.html">Selectors for Data Package Components</a></li>
<li class="toctree-l2"><a class="reference internal" href="notes/time_bandwidth_constraints.html">Time and Bandwidth Constraints</a></li>
<li class="toctree-l2"><a class="reference internal" href="notes/api_refactoring.html">Proposal for API Refactoring</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="license_and_copyright_policy.html">License and Copyright Policy</a><ul>
<li class="toctree-l2"><a class="reference internal" href="license_and_copyright_policy.html#open-source-licensing">Open source licensing</a></li>
<li class="toctree-l2"><a class="reference internal" href="license_and_copyright_policy.html#copyright">Copyright</a></li>
<li class="toctree-l2"><a class="reference internal" href="license_and_copyright_policy.html#copyright-and-license-notification">Copyright and license notification</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="acknowledgements.html">Acknowledgements</a></li>
<li class="toctree-l1"><a class="reference internal" href="about.html">About These Documents</a><ul>
<li class="toctree-l2"><a class="reference internal" href="about.html#editing-content">Editing Content</a></li>
<li class="toctree-l2"><a class="reference internal" href="about.html#building-the-documentation">Building the Documentation</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="glossary.html">Glossary</a></li>
<li class="toctree-l1"><a class="reference internal" href="changelog.html">Change Log</a><ul>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#version-1-2-clarification-edits">2014-02-12: Version 1.2. Clarification edits</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#version-1-2-minor-edits">2013-10-17: Version 1.2. Minor edits</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#version-1-1-clarifying-count-parameter-for-slicing">2012-10-09: Version 1.1. Clarifying <em>count</em> parameter for slicing</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#version-1-1-adding-mnquery-api">2012-09-28: Version 1.1. Adding MNQuery API</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#version-1-1-revising-proposed-query-api">2012-09-25: Version 1.1. Revising proposed Query API</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#version-1-1-augmenting-search-api">2012-08-20: Version 1.1. Augmenting Search API</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#version-1-0-correction-to-uris-in-resource-maps">2012-05-31: Version 1.0, Correction to URIs in Resource Maps</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#version-1-0-methodcrossreference-xls">2012-05-02: Version 1.0, MethodCrossReference.xls</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#id1">2012-05-01: Version 1.0, MethodCrossReference.xls</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#id2">2012-03-26: Version 1.0, MethodCrossReference.xls</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#id3">2012-03-26: Version 1.0, MethodCrossReference.xls</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#id4">2012-03-25: Version 1.0, MethodCrossReference.xls</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#id5">2012-02-27: Version 1.0, MethodCrossReference.xls</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#dataonetypes-xsd">2012-02-24 : dataoneTypes.xsd</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#id6">2012-02-17 : Version 1.0, MethodCrossReference.xls</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#id7">2012-02-15 : Version 1.0, MethodCrossReference.xls</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#id8">2012-02-02 : Version 1.0, MethodCrossReference.xls</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#id9">2012-02-01 : Version 1.0, MethodCrossReference.xls</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#id10">2012-01-20 : Version 1.0, MethodCrossReference.xls</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#id11">2012-01-19 : Version 1.0, MethodCrossReference.xls</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#id12">2012-01-12 : Version 1.0, MethodCrossReference.xls</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#id13">2012-01-10 : Version 1.0, MethodCrossReference.xls</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#id14">2012-01-03 : Version 1.0, MethodCrossReference.xls</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#version-1-0-dataonetypes-xsd">2011-12-19 : Version 1.0, dataoneTypes.xsd</a></li>
<li class="toctree-l2"><a class="reference internal" href="changelog.html#version-1-0">2011-12-13 : Version 1.0</a></li>
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