1 Scope
This document describes:
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— the rationale for building customisation supporting business cases that are specific to their business environment while maintaining organisational and semantic interoperability with the TC 440 specifications;
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— the difference between Usage specification and Extension specification;
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— a methodology on how to define customisations on:
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— BII Transaction specification,
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— Business rules,
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— Code lists;
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— how to claim compliance or conformance to a customisation of a TC 440 specification;
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— the connection to the eProcurement Ontology project.
This specification does not describe the detailed process of building an extension.