
Electronic Public Procurement - Architecture - Part 3: Customisation Guideline
STANDARD published on 1.7.2026
Designation standards: ČSN P CEN/TS 17011-3
Classification mark: 979411
Catalog number: 524185
Publication date standards: 1.7.2026
The number of pages: 28
Approximate weight : 84 g (0.19 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
This document describes:
- the rationale for building customisation supporting business cases that are specific to their business environ-ment while maintaining organisational and semantic interoperability with the TC 440 specifications;
- the difference between Usage specification and Extension specification;
- a methodology on how to define customisations on:
- BII Transaction specification,
- Business rules,
- Code lists;
- how to claim compliance or conformance to a customisation of a TC 440 specification;
- the connection to the eProcurement Ontology project.
This specification does not describe the detailed process of building an extension