MP142 Clarification to the MMC

Proposer Chun Chen
Lead Analyst Harry Jones
Date raised 18/09/2020
Implementation date 29 November 2020
Latest update This modification was implemented on 29 November 2020 as part of the November 2020 SEC Release.

What is the issue?

MP124 will be implemented in the November 2020 SEC Release. This modification will implement consequential changes to the DCC User Interface Specification (DUIS) and MMC that are required to facilitate the implementation of changes within the November 2020 SEC Release. This came about because the final solution design for DCC Central System changes was not available in its entirety at the point of MP124’s decision.
The MP124 ‘Consequential changes to DUIS and MMC’ legal text does not contain the term “hexadecimal representation of” in Section of the MMC. If this is implemented as written, the MMC will not align to what Users will be expecting and this would create avoidable discrepancies. As this term was not originally included in the original text provided by the DCC, it was not included into the MP124 solution.

What is the solution?

The Proposed Solution is to insert the omitted term “hexadecimal representation of” into the legal text used in MP124 for Section of the MMC. This is so that it will align to what Users expect.

Who is impacted?

No SEC Parties will be impacted

What SEC documents are affected?

Appendix AF 'Message Mapping Catalogue' (MMC)


18 Sep 2020
Draft Proposal raised

Modification documents

MP142 Modification Report v1.0
MP142 Legal Text v1.0
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