This specification contains requirements for information definitions in the context of Initial System Wide Information Management (iSWIM) in Europe.
Information definitions, the formal descriptions of exchanged information, are produced or reused by operational stakeholders. They act as the means whereby the exchanged information is clearly defined, understood and harmonised between stakeholders. Examples of information definitions are the description of information exchanged by services, standardised information exchange models, data catalogues used to list details on the exchanged information, and information exchanges captured as part of a business process model.
The requirements come in two broad categories: general requirements for information definitions and requirements on how to document semantic correspondence to the ATM Information Reference Model (AIRM).
The general requirements include, for example, the need for an edition and a reference date. The semantic correspondence requirements facilitate semantic interoperability, which is the ability of computer systems to exchange data with unambiguous, shared meaning. The requirements ensure that information definitions conform to the semantics of the AIRM, the common reference language for iSWIM.