doi HOME HANDBOOK FACTSHEETS FAQS RESOURCES REGISTRATION AGENCIES NEWS MEMBERS AREA These factsheets are concise summaries of key issues of concern t0 the DOI" system user community: Key Eactson Digital Object Identifier System Covering status_ scope, origin and purpose of the DOI system; governance and business model; technical infrastructure and intellectual property considerations. Designing_DOLApplications Providing notes and suggestions on common issues encountered in thinking about how the DOI system can be applied_ DQL- System and Internet Identitier _Specifcations The DOI System has been developed to ensure conformance with relevant generic external formal standards which are relevant in the Internet communities and W3C) , including URI and URN: Identifier Interoperability A discussion of facilitating preservation, re-use and exchange of digital information to enable users t0 re-use identifiers their associated data) across different applications. Interoperability encompasses the technical aspects and also consideration of the purpose and community of use of the identifiers_ The_indecs Framework The DOI System uses work based on the indecs Framework as the basis for its semantic interoperability model. indecs provided an analysis of the requirements for metadata for commerce intellectual property in the network environment: DOLSystem and Standard dentifier Schemes A discussion of the relationship between the DOl system and other registries of identifiers which are compilations of unique identifiers that have information on each item registered through an organization which maintains it DOLSystem and the_ Handle_System The DOI system is an implementation of the Handle System_ which was chosen because matched the resolution requirements identified for the DOl concept DOLResolution Documentation Technical discussion for software developers on resolving handles using the Proxy Server System, encoding handles for use in URIs, Proxy Server query parameters and the Proxy Server REST API. DOL System andthe_ISBN System The ISBN-A ("the actionable ISBN") is service powered by DOI; which an existing ISBN is expressed the DOI System: DOLSystem and Persistent URLS(PURLs) A comparison of DOI names and PURLs, highlighting the differences in basic technology and user services_ DOLSystem and QpenURL discussion of how OpenURL can be used with the DOI system: DOLFoundation and Topics The DOI Foundation actively opting out of the cohort calculations which enable Google-designed technologies known as Topics, formerly known as Federated Learning of Cohorts (FLoC) Updated March 14, 2022 C} (IETF (and