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== INTEROP-4. STANDARDIZED DATA EXCHANGES ==<br />
Entities that conduct [[IDEF Glossary DIGITAL IDENTITY MANAGEMENT FUNCTIONS|digital identity management functions]] MUST use systems and processes to communicate and exchange identity-related data that conform to public open [[IDEF Glossary STANDARDS|STANDARDS]].<br />
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=== SUPPLEMENTAL GUIDANCE ===<br />
This Requirement is that entities must use public open STANDARDS when conducting data interface and exchange transactions with THIRD-PARTIES. It does not require that entities must be capable to use all interface STANDARDS, but must be capable of using at least one. Sufficient options exist among nonproprietary published methods today.<br />
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This Requirement addresses transmission and exchange data protocols, reliable messaging, and database/repository/registry transactions, within which entities may offer, seek and obtain identity data. Please note, however, that this Requirement does not address formats or expressions for the identity data itself (which are addressed by [[Interop Req 2|INTEROP-2 (THIRD-PARTY CREDENTIALS)]] and [[Interop Req 3|INTEROP-3 (STANDARDIZED CREDENTIALS)]]), nor transport or protective methods and protocols (which are addressed separately in the [[Baseline_Functional_Requirements_v1.0#Security|IDESG Security Requirements]] SECURE-1 through SECURE-15)).<br />
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Regarding "digital identity management functions", see [[APPENDIX_A-Defined_Terms|Appendix A]].<br />
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=== REFERENCES ===<br />
Reference for open standards: OMB Circular A-119: Federal Participation in the Development and Use of Voluntary Consensus Standards and in Conformity Assessment Activities, https://www.whitehouse.gov/omb/circulars_a119<br />
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Reference for roles, functions, and operations, IDESG Functional Model, https://workspace.idesg.org/kws/public/download.php/53/IDEF-Functional-Model-v1.0.pdf<br />
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Reference examples for interface and exchange protocols: <br />
* SAML 2.0, http://docs.oasis-open.org/security/saml/v2.0/saml-core-2.0-os.pdf <br />
* XACML 3.0, http://docs.oasis-open.org/xacml/3.0/xacml-3.0-core-spec-os-en.html <br />
* OAuth 2., http://tools.ietf.org/html/rfc6749. <br />
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=== APPLIES TO ACTIVITIES ===<br />
[[IDEF Functional Model CREDENTIALING|CREDENTIALING]], <br />
[[IDEF Functional Model AUTHENTICATION|AUTHENTICATION]], <br />
[[IDEF Functional Model INTERMEDIATION|INTERMEDIATION]]<br />
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=== KEYWORDS ===<br />
[[IDEF Keywords DATA-INTERFACE|DATA-INTERFACE]], [[IDEF Keywords EXCHANGE|EXCHANGE]], [[IDEF Keywords INTEROPERABILITY|INTEROPERABILITY]], <br />
[[IDEF Keywords OPEN-STANDARDS|OPEN-STANDARDS]], [[IDEF Keywords TRANSACTION|TRANSACTION]]<br />
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Quick Links: [[SALS]] | [[Baseline Functional Requirements v1.0]] | [[Glossary]] |<br />
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