IDFindecs (interoperability of data in e-commerce systems) is a metadata framework developed between 1998 and 2000 to address the challenge of making metadata interoperable across different content industries -- music, publishing, audiovisual, and libraries. Although the original EU-funded project concluded over two decades ago, the indecs Framework remains one of the most influential conceptual models in the metadata standards landscape, underpinning the DOI Data Model, ONIX, DDEX, and other standards for digital content commerce.
Background
The indecs project was part-funded by the European Community Info 2000 initiative, with additional support from organizations representing the music, rights, text publishing, authors, and library sectors. The project team produced a final report and several related documents, of which "Principles, Model and Data Dictionary" is the most concise summary.
The project arose from a practical problem: as digital commerce in intellectual property expanded, different industries had developed incompatible metadata vocabularies. A music rights database, a publisher's catalog, and a library's bibliographic records might all describe the same creative work using different terms with subtly different meanings. indecs set out to create a generic mechanism for handling complex metadata across all types of content.
Purpose & Scope
indecs supports interoperability across five dimensions:
- Across media -- books, serials, audio, audiovisual, software, visual material, abstract works
- Across functions -- cataloguing, discovery, workflow, rights management
- Across levels of metadata -- from simple to complex
- Across semantic barriers -- different vocabularies describing the same concepts
- Across linguistic barriers -- different languages and cultural contexts
The framework is built from a "model of making": people make stuff, people use stuff, and people make deals about the stuff. If secure machine-to-machine commerce is to work, the stuff, the people, and the deals must all be identified and described in standardized, machine-interpretable ways.
Core Principles
indecs proposed four principles for managing identification:
- Unique Identification -- every entity should be uniquely identified within an identified namespace
- Functional Granularity -- it should be possible to identify an entity whenever it needs to be distinguished
- Designated Authority -- the author of an item of metadata should be securely identified
- Appropriate Access -- everyone requires access to the metadata on which they depend, with privacy and confidentiality for their own metadata
The framework also contributed an influential definition of metadata: "An item of metadata is a relationship that someone claims to exist between two entities." This definition emphasizes relationships, unique identification, and authority as the three pillars of effective metadata.
Relationship to Other Frameworks
The indecs approach has much in common with the CIDOC Conceptual Reference Model (CRM) for cultural heritage and the Functional Requirements for Bibliographic Records (FRBR) in the library world. All three frameworks deal with the lifecycle of intellectual works, but each was shaped by different functional requirements. Terms like "abstraction," "manifestation," "item," and "expression" appear across these models but may carry subtly different meanings. The indecs Framework provides a mechanism for mapping precise definitions across schemes.
Governance & Maintenance
After the EU-funded project ended in 2000, the indecs Framework was carried forward primarily through the International DOI Foundation, which hosts the factsheet and related documentation. Further development has occurred through community activities such as the Vocabulary Mapping Framework (VMF) and independent tools and services.
Applications and Influence
The indecs Framework has been applied in several active standards and initiatives:
- DOI Data Model -- the semantic foundation for all DOI metadata
- ONIX (Online Information Exchange) -- publishing industry metadata standard
- DDEX (Digital Data Exchange) -- music industry messaging and data dictionaries
- RDA/ONIX Framework for Resource Categorization -- library-publishing interoperability
- Linked Content Coalition -- cross-sector rights management
- Vocabulary Mapping Framework (VMF) -- tool for mapping between metadata vocabularies