MHHS Migration Framework

The Migration team facilitated several workshops to draw together Migration Working Group (MWG) attendees and other interested participants to develop the Migration Framework ahead of several consultations.
You can view the papers and recordings of these sessions on the MWG page of the Collaboration Base.
The MHHS Migration Framework details the principles, controls, roles, processes and responsibilities regarding Migration, as well as the decision-making authority of the Migration Control Centre (MCC), its activities and interactions with participants.
The first consultation focused on developing and maintaining the Migration schedule and was approved by the Migration & Cutover Advisory Group (MCAG) on 8 May 2024.
The second consultation focused on monitoring and controlling Migration Execution, having previously focused on developing, initialising and maintaining the Migration Schedule in the first Migration Framework consultation. It also included some minor updates to some of the Artefacts included in the first consultation regarding Small Portfolios and Exceptional Thresholds. This was approved by the MCAG on 25 July 2024.
The third consultation focused on further refining and enhancing the Migration Framework Artefacts. The Artefacts were approved by the MCAG on 25 February 2025.
You can view a Consolidated Comments Log for all the consultations below:
Migration Framework Consolidated Comments Log
Thank you to all participants who provided feedback and input on these Artefacts. You can view all the Approved Artefacts in the library at the bottom of this page.
You can also view uplifted versions of the M15 Acceptance Criteria and the Migration Thresholds Document where minor updates were made as part of this consultation process. You can view these on the respective M15 Acceptance Criteria and Migration Thresholds pages of this website.
If you have any questions, please email the Migration team at [email protected]
Migration Framework Consultation 4
The Programme issued the fourth Migration Framework Consultation for industry review.
This consultation has now closed. Thank you to everyone who submitted feedback. You can review the comments received in the Consolidated Comments log in the top section of this page.
You can still view the Consultation 4 Advisory Notes below for information, which lists all the artefacts that were amended and those that weren't.
Migration Framework Consultation 4 Advisory Notes
The Programme have reviewed the comments received, and published an updated Consolidated Comments Log which you can find in the top section of this page. The responses and updated artefacts were presented to an Migration Working Group (MWG) Assurance Meeting on 22 April 2025, where the MWG recommended them to MCAG for approval. The Artefacts were approved and baselined at the Migration & Cutover Advisory Group (MCAG) for final approval on 29 April 2025.
If you have any questions about this consultation, please email the Migration team at [email protected]

MHHS Migration Framework Approved Artefacts
Short Name | Doc Number | Subtype | Theme | Version |
---|---|---|---|---|
[04] Migration Requirements and Processes | DEL2430 | Approved Artefacts | v4.0 | |
[07] Migration Data Requirements and Reports | DEL2764 | Approved Artefacts | v4.0 | |
[04a] Migration Business Process Models | DEL2431 | Approved Artefacts | v4.0 | |
[01] Migration Framework Foundations | DEL2426 | Approved Artefacts | v4.0 | |
[03] Migration Capacity Calculations - Method Statements | DEL2428 | Approved Artefacts | v4.0 | |
Appendix - Migration Tool Test Approach | 3532 | Approved Artefacts | v1.0 | |
[06] Migration Governance and Escalation Framework | DEL2763 | Approved Artefacts | v4.0 | |
[03a] Calculation Monitoring and Control - Parameters | DEL2429 | Approved Artefacts | v4.0 | |
Appendix Supplier Envelope and Submission Guide | DEL2952 | Approved Artefacts | v4.0 | |
Appendix - Terminology and Glossary | DEL3359 | Approved Artefacts | v4.0 | |
[05] Migration Choreography | DEL2762 | Approved Artefacts | v4.0 | |
[02] Migration Framework - Principles and Guidelines | DEL2427 | Approved Artefacts | v4.0 |