Project Deliverables
| Deliverable | ODP1 | ODP2 | ODP3 | ODP4 | ODP5 | ODP6 | ODP7 | Notes |
|---|---|---|---|---|---|---|---|---|
| Code Management Project (Tech Spec) |
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Project Leadership
| Role | Member
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|---|---|
Project Lead | |
Lead Editor | |
| Editor | |
Editor |
Heads of Delegation
ES | IN | JP | MA | SE |
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Executive Summary
Project purpose
Codes are an essential component of any Machine-To-Machine information flow. Codes have been developed over time to facilitate the flow of compressed, standardized values that can be easily validated for correctness to ensure consistent semantics. Many international, national and sectoral agencies create and maintain code lists relevant to their area. If required to be used within an information flow, these code lists will be stored in their own environment and referred to as external code lists. The project’s purpose is define the procedures and methodologies for code list creation, management and maintenance. The resulting rules and guidelines will primarily be mandated for all UN/CEFACT deliverables but also applicable to external organisations.Project scope
The project will define the procedures, rules and methodologies for the following identified issues. Existing rules, such as those defined in the Core Components Technical Specification, CCTS, should be taken into account and if applicable be respected. The project should take into account any UN/CEFACT deliverable that apply codes. The primary target audience is UN/CEFACT Experts developing deliverables using coded representations but guidance to end users should be added when appropriate. 1. Version compatibility The ability to use the latest possible version of a code list in association with any version of a message, i.e. decoupling the versioning of code lists from the business message versions 2. Extending code lists Evaluate if permanent extensions are possible and desirable 3. Restricting code lists Provide rules and methodology for restricting code lists for use within specific context. Users of the UN/CEFACT libraries may identify any subset they wish from a specific code list for their own community requirements. 4. Code list validation rules Provide rules and methodology for how to validate instance documents against an XML Schema or UN/EDIFACT message type in respect to code lists 5. Temporary codes Provide rules and methodology for the inclusion of temporary codes that will be replaced by a permanent code at the next UN/CEFACT standardised release. 6. Externally maintained code lists Define rules and procedures for referencing code lists maintained by organisations external to UN/CEFACT, e.g. ISO, ICC, W3C.