Historic Governance Groups


As the MHHS Programme develops, some governance groups are being stood down as phases of the Programme evolve. You can view information and meeting documentation for these historic governance groups on this page.

If you have any questions, please email PMO@mhhsprogramme.co.uk 


Design Advisory Group (DAG)

The role of the Level 3 Design Advisory Group (DAG) was to oversee, review, consult and approve the development of the end-to-end business processes, system and data architecture that delivered the detailed system design.

DAG was chaired by Justin Andrews. It consisted of technical experts from Programme constituency participants and a representative from Ofgem as an observer.

DAG was the primary decision-making authority for the system and solution design, and ensured that participant perspectives were represented during decision-making, to enable transparency of design artefacts for impacted constituency groups and stakeholders.

DAG delegated appropriate tasks and activities to Level 4 Working Groups as appropriate. Like PSG, it also received escalations from lower level groups and ensured consensus was reached so the Programme design work progressed to plan. It also advised the PSG and other groups as required.

You can view the DAG Meeting Papers in the library below.

DAG ToR


DAG Meeting Documents

Date Of Meeting Short Name Sub Type
2023-01-11 00:00:00Z 11/01/2023 DAG 20 Papers Papers
2022-06-21 00:00:00Z 21/06/2022 DAG 10.1 Headline Report Headline
2022-06-08 00:00:00Z 08/06/2022 DAG 10 Minutes Minutes
2023-08-09 00:00:00Z 09/08/2023 Attachment 11 - GSP Group Consumption Totals Report (MHHS) Papers
2024-05-08 00:00:00Z 08/05/2024 DAG 36 Headline Report Headline
2024-01-10 00:00:00Z 10/01/2024 DAG 32 Papers Papers
2023-02-16 00:00:00Z 16/02/2023 DAG 21.1 Papers - Attachment 1 - CR018 Registration Service Operating Hours v1.1 Papers
2023-01-11 00:00:00Z 11/01/2023 DAG 20 Papers - Attachment 1 - DAG 14 December Minutes and Actions v1.1 (change marked) Papers
2023-02-08 00:00:00Z 08/02/2023 DAG 21 Minutes Minutes
2023-11-08 00:00:00Z 08/11/2023 Attachment 1 - DAG 11 October 2023 Minutes v1.1 (change marked) Papers
2022-07-06 00:00:00Z 06/07/2022 DAG 11 Attachment 1 Summary Report - Tranche 3 Papers
2022-03-23 00:00:00Z 23/03/2022 DAG 7 Papers Attachment 1 Papers
2022-12-14 00:00:00Z 14/12/2022 DAG 19 Papers v2.0 Papers
2022-10-31 00:00:00Z 31/10/2022 M5 Design Baseline Work-Off List v1.0 Papers
2023-03-31 00:00:00Z 31/03/2023 DAG 22.1 Papers v1.0 Papers
2023-02-01 00:00:00Z 01/02/2023 DAG 20.1 Papers - Attachment 1 - M5 Work-Off Plan - Completion Report v1.0 Papers
2022-01-12 00:00:00Z 12/01/2022 DAG 3 Headline Report Headline
2022-12-14 00:00:00Z 14/12/2022 DAG 19 Papers - Attachment 2 - Design Change Management Procedure v0.7 Papers
2022-03-23 00:00:00Z 23/03/2022 DAG 7 Minutes Minutes
2022-04-13 00:00:00Z 13/04/2022 DAG 8 Papers Papers
2022-09-14 00:00:00Z 14/09/2022 DAG 15 Minutes Minutes
2023-06-14 00:00:00Z 14/06/2023 MHHS-DEL1316 Fast Track Design Update Process v1.0 Papers
2023-07-12 00:00:00Z 12/07/2023 DAG 26 Headline Report Papers
2022-03-09 00:00:00Z 09/03/2022 DAG 6 Minutes Minutes
2022-07-28 00:00:00Z 28/07/2022 DAG 13 Headline Report Headline
2023-01-11 00:00:00Z 11/01/2023 DAG 20 Papers - Attachment 3 - DAG 31 October 2022 Minutes and Actions v1.1 (change marked) Papers
2022-06-08 00:00:00Z 08/06/2022 DAG 10 Headline Report Attachment 1 Headline
2023-09-13 00:00:00Z 13/09/2023 DES-196 D-Flow and Interface Mapping Supplementary Documents Papers
2022-08-10 00:00:00Z 10/08/2022 DAG Summary Report - Tranche 4 Papers
2022-03-23 00:00:00Z 23/03/2022 DAG 7 Papers Papers
2023-08-09 00:00:00Z 09/08/2023 DAG 27 Headline Report Headline
2023-07-12 00:00:00Z 12/07/2023 DAG 26 Papers - Attachment 7 - CR025 DIP Interface Name Changes v1.0 Papers
2024-02-14 00:00:00Z 14/02/2024 DAG 33 Papers - Attachment 4 - CR040 Change to NFR E2E1009 for DNO IDNO roles (LDSO UMSO Registrations) v1.1 Papers
2024-01-10 00:00:00Z 10/01/2024 CR039 Registration Service IF-40 Change - DAG Supporting Information (St Clements) Papers
2022-02-09 00:00:00Z 09/02/2022 DAG 4 Minutes Minutes
2022-03-17 00:00:00Z 17/03/2022 DAG 6.1 Headline Report Headline
2024-03-13 00:00:00Z 13/03/2024 DAG 34 Papers v1.1 Papers
2023-05-10 00:00:00Z 10/05/2023 DAG 24 Papers - Attachment 1 - CR018 Registration Service Operating Hours v1.4 Papers
2022-01-12 00:00:00Z 12/01/2022 DAG 3 Papers Papers
2024-02-14 00:00:00Z 14/02/2024 DAG 33 Papers - Attachment 1 - DAG 08 November 2023 Minutes and Actions v1.1 (change marked) Papers
2023-08-09 00:00:00Z 09/08/2023 Attachment 9 - Supplier Half Hourly Demand Report (MHHS) Papers
2022-03-23 00:00:00Z 23/03/2022 DAG 7 Papers Attachment 2 - Non-Functional Requirements Papers
2023-10-11 00:00:00Z 11/10/2023 DAG 29 Papers - Attachment 1 - DAG 13 September 2023 Minutes and Actions v1.1 (change marked) Papers
2023-09-13 00:00:00Z 13/09/2023 Attachment 8 – MHHS Impacts to BSC D-Flows-Consolidated Comments Log Papers
2023-09-13 00:00:00Z 13/09/2023 Attachment 5 – CR029 - DIP LDSO Interface Processing Papers
2022-02-16 00:00:00Z 16/02/2022 DAG 5 Headline Report Headline
2023-10-11 00:00:00Z 11/10/2023 DAG 29 Papers - Attachment 3 - Interface Code of Connection v1.1 (change marked) Papers
2022-11-09 00:00:00Z 09/11/2022 DAG 18 Minutes Minutes
2023-12-13 00:00:00Z 13/12/2023 DAG 31 Papers - Attachment 1 - CR032 Change to Interface MHHS-IF-165 P0210 TUoS Reporting v2.3 Papers
2022-02-09 00:00:00Z 09/02/2022 DAG 4 Meeting Papers Papers
2022-03-09 00:00:00Z 09/03/2022 DAG 6 Headline Report Headline
2022-05-11 00:00:00Z 11/05/2022 DAG 9 Headline Report Headline
2023-06-14 00:00:00Z 14/06/2023 DAG 25 Papers - Attachment 2 - Provisional_Transitional_Scaling_Weights_v0.2. Papers
2024-04-10 00:00:00Z 10/04/2024 DAG 35 Papers - Attachment 4 - CR046 Enabling Metering Point Energy Flow to be changed more than once v1.0 Papers
2023-01-11 00:00:00Z 11/01/2023 DAG 20 Papers - Attachment 5 - Design Authority ToR v0.9 Papers
2021-11-17 00:00:00Z 17/11/2021 DAG 1 Minutes Minutes
2023-09-13 00:00:00Z 13/09/2023 DAG 28 Minutes v1.1 (change marked) Minutes
2022-06-21 00:00:00Z 21/06/2022 DAG 10.1 Minutes Minutes
2023-11-08 00:00:00Z 08/11/2023 DAG 30 UTC vs Clock PPIR Responses and Changes v1.0 Papers
2024-02-14 00:00:00Z 14/02/2024 DAG 33 Papers v2.0 Papers
2022-10-14 00:00:00Z 14/10/2022 DAG 16 Minutes Minutes
2022-06-08 00:00:00Z 08/06/2022 DAG 10 Headline Report Attachment 2 Headline
2022-03-09 00:00:00Z 09/03/2022 DAG 6 Papers - Appendix 1 Papers
2023-12-13 00:00:00Z 13/12/2023 DAG 31 Papers Papers
2023-08-09 00:00:00Z 09/08/2023 Attachment 12 - Supplier BM Unit Report (MHHS) Papers
2023-11-08 00:00:00Z 08/11/2023 Attachment 2 - CR032 Change to Interface MHHS-IF-165 P0210 TUoS Reporting v1.3 Papers
2022-07-21 00:00:00Z 21/07/2022 DAG 12 Papers Papers
2023-11-08 00:00:00Z 08/11/2023 DAG 30 Headline Report Headline
2022-10-14 00:00:00Z 14/10/2022 DAG 16 Headline Report Headline
2021-12-08 00:00:00Z 08/12/2021 DAG 2 Headline Report Headline
2022-05-11 00:00:00Z 11/05/2022 DAG 9 Papers Attachment 2 Papers
2021-12-08 00:00:00Z 08/12/2021 DAG 2 Papers Papers
2024-04-10 00:00:00Z 10/04/2024 DAG 35 Papers - Attachment 3 - CR045 Registration Service SSD Fix Tool v1.0 Papers
2023-06-14 00:00:00Z 14/06/2023 DAG 25 Headline Report Headline
2023-01-11 00:00:00Z 11/01/2023 DAG 20 Papers - Attachment 2 - DAG 09 November 2022 Headline Report v1.1 (change marked) Papers
2022-03-23 00:00:00Z 23/03/2022 DAG 7 Headline Report Headline
2022-10-31 00:00:00Z 31/10/2022 DAG 17 Headline Report Headline
2022-06-08 00:00:00Z 08/06/2022 DAG 10 Papers Attachment 2 Papers
2022-11-09 00:00:00Z 09/11/2022 DAG 18 Headline Report Headline
2023-09-13 00:00:00Z 13/09/2023 DAG 28 Papers Papers
2023-10-11 00:00:00Z 11/10/2023 DAG 29 Papers v2.0 Papers
2022-10-31 00:00:00Z 31/10/2022 DAG 17 Papers - Attachment 2 - M5 Design Baseline Report v1.0 Papers
2022-07-06 00:00:00Z 06/07/2022 DAG 11 Minutes Minutes
2022-07-21 00:00:00Z 21/07/2022 DAG 12 Minutes Minutes
2022-02-09 00:00:00Z 09/02/2022 DAG 4 Headline Report Headline
2023-09-13 00:00:00Z 13/09/2023 Attachment 3 – CR028 Appendix 2 DES 138 Interface Catalogue - CR Redlining Papers
2023-04-12 00:00:00Z 12/04/2023 DAG 23 Headline Report Headline
2023-07-12 00:00:00Z 12/07/2023 DAG 26 Papers - Attachment 3 - DIP PKI Policy v0.4 Papers
2023-09-13 00:00:00Z 13/09/2023 Attachment 4 – CR028 Appendix 3 - BPD001 Change of Supply CR Redlining Papers
2022-07-06 00:00:00Z 06/07/2022 DAG 11 Headline Report Headline
2023-06-14 00:00:00Z 14/06/2023 DAG 25 Papers - Attachment 4 - D-Flow and Interface Mapping v0.4 Papers
2024-01-10 00:00:00Z 10/01/2024 DAG 32 Papers - Attachment 2 - CR040 Change to NFR E2E1009 for DNO & IDNO roles (LDSO, UMSO, Registrations) v1.0 Papers
2022-04-13 00:00:00Z 13/04/2022 DAG 8 Minutes Minutes
2022-07-06 01:00:00Z 06/07/2022 DAG 11 Papers Attachment 4 Papers
2022-07-28 00:00:00Z 28/07/2022 DAG 13 Minutes Minutes
2022-01-12 00:00:00Z 12/01/2022 DAG 3 Minutes Minutes
2023-10-11 00:00:00Z 11/10/2023 DAG 29 Papers - Attachment 6 – UTC vs Clock Time Supporting Information v1.0 Papers
2022-04-13 00:00:00Z 13/04/2022 DAG 8 Headline Report Headline
2022-10-14 00:00:00Z 14/10/2022 DAG 16 Papers Papers
2022-02-09 00:00:00Z 09/02/2022 DAG 4 appendix - artefact status report Papers
2023-08-09 00:00:00Z 09/08/2023 Attachment 8 - MHHS impacts to BSC owned Data Flows Papers
2023-08-09 00:00:00Z 09/08/2023 DAG 27 Minutes Papers
2024-02-14 00:00:00Z 14/02/2024 DAG 33 Papers - Attachment 2 - DAG 10 January 2024 Headline Report v1.1(change marked) Papers
2023-11-08 00:00:00Z 08/11/2023 DAG 30 Papers Papers
2022-12-14 00:00:00Z 14/12/2022 DAG 19 Headline Report Headline
2023-12-13 00:00:00Z 13/12/2023 CR034 Redlining Headline
2022-05-11 00:00:00Z 11/05/2022 DAG Summary Report- Tranche 1 Papers
2023-05-10 00:00:00Z 10/05/2023 DAG 24 Papers Papers
2023-12-13 00:00:00Z 13/12/2023 MHHS-DEL2075 - MHHS Design Artefact Changes to Support CR036 v1.0 Papers
2022-12-14 00:00:00Z 14/12/2022 DAG 19 Minutes Minutes
2023-10-11 00:00:00Z 11/10/2023 DAG 29 Papers - Attachment 4 - Updated DAG ToR v1.3 (change marked - for DAG Review) Papers
2023-03-08 00:00:00Z 08/03/2023 DAG 22 Papers - Attachment 2 - CR019 Replacement of D0242 D0315 for MHHS v1.0 Papers
2023-07-12 00:00:00Z 12/07/2023 DAG 26 Papers - Attachment 5 - CR027 DUoS E-Billing DIP Message for MHHS v1.0 Papers
2022-07-06 01:00:00Z 06/07/2022 DAG 11 Papers Attachment 3 - MHHS Programme RAID Log Papers
2021-12-08 00:00:00Z 08/12/2021 DAG 2 Minutes Minutes
2023-02-16 00:00:00Z 16/02/2023 DAG 21.1 Minutes Minutes
2023-02-08 00:00:00Z 08/02/2023 DAG 21 Papers v2.0 Papers
2022-10-31 00:00:00Z 31/10/2022 DAG 17 Minutes Minutes
2024-03-13 00:00:00Z 13/03/2024 DAG 34 Papers - Attachment 1 - Interface Code of Connection v1.4 (change marked) (DRAFT) Papers
2022-12-14 00:00:00Z 14/12/2022 DAG 19 Papers Papers
2023-11-08 00:00:00Z 08/11/2023 DAG 30 Minutes Minutes
2023-09-13 00:00:00Z 13/09/2023 Attachment 6 – CR030 - Introduction of Compressed Payloads into DIP Messages Papers
2024-04-10 00:00:00Z 10/04/2024 DAG 35 Headline Report Headline
2023-02-16 00:00:00Z 16/02/2023 M5 Work-Off Plan - Final DAG Report - 07 February 2023 v2.0 Papers
2023-05-10 00:00:00Z 10/05/2023 DAG 24 Minutes Minutes
2023-02-01 00:00:00Z 01/02/2023 DAG 20.1 Minutes Minutes
2022-12-14 00:00:00Z 14/12/2022 DAG 19 Papers - Attachment 1 - CCIAG ToR v1.1 (change marked) Papers
2023-01-11 00:00:00Z 11/01/2023 DAG 20 Minutes v2.0 Minutes
2022-05-11 03:00:00Z 11/05/2022 DAG 9 Papers Attachment 3 Papers
2022-11-09 00:00:00Z 09/11/2022 DAG 18 Papers Papers
2022-08-10 00:00:00Z 10/08/2022 DAG 14 Papers Papers
2022-09-14 00:00:00Z 14/09/2022 DAG 15 Headline Report Headline
2022-05-11 00:00:00Z 11/05/2022 DAG 9 Papers Attachment 1 Papers
2023-04-12 00:00:00Z 12/04/2023 DAG 23 Minutes Minutes
2023-11-08 00:00:00Z 08/11/2023 Attachment 5 - Interface Code of Connections v1.2 (change marked)​ Papers
2024-03-13 00:00:00Z 13/03/2024 DAG 34 Papers - Attachment 4 - CR044 Data Refresh Message IF-051 v1.0 Papers
2023-02-01 00:00:00Z 01/02/2023 DAG 20.1 Papers v2.0 Papers
2023-04-12 00:00:00Z 12/04/2023 DAG 23 Papers Papers
2024-03-13 00:00:00Z 13/03/2024 DAG 34 Papers - Attachment 3 - CR043 Supplier Registration of ABMU and MPAN Mapping v1.1. Papers
2022-10-31 00:00:00Z 31/10/2022 DAG 17 Papers - Attachment 1 - Design Assurance Findings (M5) v1.0 Papers
2022-08-10 00:00:00Z 10/08/2022 DAG 14 Headline Report Headline
2023-09-13 00:00:00Z 13/09/2023 DAG 28 Headline Report Headline
2022-03-09 00:00:00Z 09/03/2022 DAG 6 Papers Papers
2024-04-10 00:00:00Z 10/04/2024 DAG 35 Papers - Attachment 2 - CR044 Data Refresh Message IF-051 v1.0 Papers
2024-02-14 00:00:00Z 14/02/2024 DAG 33 Headline Report Papers
2023-06-14 00:00:00Z 14/06/2023 DAG 25 Papers - Attachment 3 - Transitional_BMU_Aggregated_Data v0.1 Papers
2022-07-21 00:00:00Z 21/07/2022 DAG 12 Headline Report Headline
2022-06-08 00:00:00Z 08/06/2022 DAG 10 Papers Attachment 3 Papers
2023-04-12 00:00:00Z 12/04/2023 DAG 23 Papers - Attachment 1 - Linked and Related MPANs Explainer v1.0 Papers
2023-07-12 00:00:00Z 12/07/2023 DAG 26 Minutes Minutes
2024-02-14 00:00:00Z 14/02/2024 DAG 33 Papers - Attachment 6 - CR043 Supplier Registration of ABMU and MPAN Mapping v1.0 Papers
2021-11-17 00:00:00Z 17/11/2021 DAG 1 Papers Papers
2024-04-10 00:00:00Z 10/04/2024 DAG 35 Papers Papers
2023-03-31 00:00:00Z 31/03/2023 DAG22.1 Papers v2.0 Papers
2023-01-11 00:00:00Z 11/01/2023 DAG 20 Papers - Attachment 6 - CCIAG ToR v1.1 (change marked) Papers
2023-10-11 00:00:00Z 11/10/2023 DAG 29 Papers - Attachment 2 - CR032 - Change to Interface MHHS-IF-165 P0210 TUoS Reporting v1.3 Papers
2022-06-08 00:00:00Z 08/06/2022 DAG Summary Report- Tranche 2 Papers
2023-08-09 00:00:00Z 09/08/2023 Attachment 6 - CR030 - Introduction of Compressed Payloads into DIP Messages Papers
2023-09-13 00:00:00Z 13/09/2023 DAG 28 Minutes v1.1 (final) Minutes
2023-10-11 00:00:00Z 11/10/2023 DAG 29 Minutes v1.1 Minutes
2022-11-09 00:00:00Z 09/11/2022 MHHS M5 Design Baseline Work-Off Plan v1.0 Papers
2023-02-16 00:00:00Z 16/02/2023 DAG 21.1 Papers Papers
2023-12-13 00:00:00Z 13/12/2023 DAG 31 Papers - Attachment 3 - CR036 Use of Clock Midnight for Appointments and Reads v1.1 Papers
2023-09-13 00:00:00Z 13/09/2023 Attachment 2 – CR028 Appendix 1 - BRS006 EES and SDEP Requirements CR Redlining Papers
2023-07-12 00:00:00Z 12/07/2023 DAG 26 Papers - Attachment 10 - Comments Log for DES-196 Papers
2023-08-09 00:00:00Z 09/08/2023 Attachment 3 - CR028 - Appendix 2 Papers
2023-08-09 00:00:00Z 09/08/2023 Attachment 10 - Supplier Settlement Header Report (MHHS) Papers
2023-01-11 00:00:00Z 11/01/2023 DAG 20 Papers - Attachment 4 - Design Change Management Procedure v0.8 Papers
2023-02-01 00:00:00Z 01/02/2023 DAG 20.1 Headline Report Headline
2023-06-14 00:00:00Z 14/06/2023 DAG 25 Papers - Attachment 5 - CR024 Data Items Names and Descriptions v1.0 Papers
2023-10-11 00:00:00Z 11/10/2023 DAG 29 Papers - Attachment 5 - Transition Design (Settlement Timetable Transition) Artefacts (zip) Papers
2024-03-13 00:00:00Z 13/03/2024 DAG 34 Papers - Attachment 2 - DIP PKI Certificate Profiles v1.1 (DRAFT) Papers
2024-02-14 00:00:00Z 14/02/2024 DAG 33 Papers - Attachment 3 - CR039 Registration Service IF-40 Change v1.3 Papers
2023-06-14 00:00:00Z 14/06/2023 DAG 25 Papers v1.1 Papers
2023-03-08 00:00:00Z 08/03/2023 DAG 22 Minutes Minutes
2022-06-08 00:00:00Z 08/06/2022 DAG 10 Papers Papers
2022-05-11 03:00:00Z 11/05/2022 DAG 9 Papers - Attachment 4 - CCIAG ToR (draft) Papers
2023-02-16 00:00:00Z 16/02/2023 DAG 21.1 Papers v2.0 Papers
2023-07-12 00:00:00Z 12/07/2023 DAG 26 Papers v1.2 Papers
2022-02-16 00:00:00Z 16/02/2022 DAG 5 Papers Papers
2024-05-08 00:00:00Z 08/05/2024 DAG 36 Papers Papers
2022-06-08 00:00:00Z 08/06/2022 DAG 10 Papers Attachment 2 Papers
2022-07-06 00:00:00Z 06/07/2022 DAG 11 Papers Papers
2023-08-09 00:00:00Z 09/08/2023 Attachment 5 - CR029 - DIP LDSO Interface Processing Papers
2022-05-11 01:00:00Z 11/05/2022 DAG 9 Minutes (change marked) Minutes
2024-03-13 00:00:00Z 13/03/2024 DAG 34 Papers - Attachment 5 - CR045 Registration Service SSD Fix Tool v1.0 Papers
2023-03-31 00:00:00Z 31/03/2023 DAG 22.1 Headline Report Headline
2023-03-08 00:00:00Z 08/03/2023 DAG 22 Papers - Attachement 1 - 11 January Minutes and Actions v1.1 Papers
2024-03-13 00:00:00Z 13/03/2024 DAG 34 Headline Report Headline
2022-02-01 00:00:00Z 01/02/2022 DAG 4.1 Papers Papers
2022-09-14 00:00:00Z 14/09/2022 DAG 15 Papers Papers
2022-06-21 00:00:00Z 21/06/2022 DAG 10.1 Papers Papers
2022-05-11 00:00:00Z 11/05/2022 DAG 9 Papers Papers
2022-10-31 00:00:00Z 31/10/2022 DAG 17 Papers - Attachment 3 - DAG 14 October Headline Report (change marked) v1.1. Papers
2023-03-08 00:00:00Z 08/03/2023 DAG 22 Headline Report Headline
2023-06-14 00:00:00Z 14/06/2023 DAG 25 Minutes Minutes
2023-07-12 00:00:00Z 12/07/2023 DAG 26 Papers - Attachment 2 - DIP PKI Certificate Profiles v1.0 Papers
2022-02-16 00:00:00Z 16/02/2022 DAG 5 Minutes Minutes
2024-06-12 00:00:00Z 12/06/2024 DAG 37 Papers Papers
2022-10-31 00:00:00Z 31/10/2022 DAG 17 Papers Papers
2023-12-13 00:00:00Z 13/12/2023 DAG 31 Headline Report v1.1 Headline
2023-02-08 00:00:00Z 08/02/2023 DAG 21 Papers - CR017 LDSO DIP messages processing times v1.1 Papers
2023-07-12 00:00:00Z 12/07/2023 DAG 26 Papers - Attachment 4 - D-Flow and Interface Mapping v0.5 Papers
2023-07-12 00:00:00Z 12/07/2023 DAG 26 Papers - Attachment 9 - CoCo & PKI Consolidated Comments Log v0.2 Papers
2023-05-10 00:00:00Z 10/05/2023 DAG 24 Headline Report Headline
2022-02-01 00:00:00Z 01/02/2022 DAG 4.1 Headline Report Headline
2023-08-09 00:00:00Z 09/08/2023 Attachment 4 - BPD001 Change of Supply CR Redlining Papers
2023-07-12 00:00:00Z 12/07/2023 DAG 26 Papers - Attachment 1 - Interface Code of Connection v0.8 Papers
2024-01-10 00:00:00Z 10/01/2024 DAG 32 Papers - Attachment 3 - CR041 Change the format of Market Participant Role Code from Char(1) to Char(2) v1.0 Papers
2022-03-23 00:00:00Z 23/03/2022 DAG 7 Papers Attachment 3 Papers
2023-09-13 00:00:00Z 13/09/2023 Attachment 10 – Updated DAG Terms of Reference v1.1 (for DAG Review) Papers
2021-11-17 00:00:00Z 17/11/2021 DAG 1 Headline Report Headline
2023-08-09 00:00:00Z 09/08/2023 Attachment 1 - CR028 - EES and SDEP Requirements CR Papers
2024-01-10 00:00:00Z 10/01/2024 DAG 32 Headline Report Headline
2022-07-28 00:00:00Z 28/07/2022 DAG 13 Meeting Papers Papers
2023-06-14 00:00:00Z 14/06/2023 DAG 25 Papers - Attachment 1 - BRS001 Transition Approach and Parallel Running Requirements v2.0 Papers
2024-02-14 00:00:00Z 14/02/2024 DAG 33 Papers - Attachment 5 - CR041 Change the format of Market Participant Role Code from Char(1) to Char(2) v1.2 Papers
2023-01-11 00:00:00Z 11/01/2023 DAG 20 Minutes Minutes
2023-03-31 00:00:00Z 31/03/2023 DAG 22.1 Minutes Minutes
2022-12-14 00:00:00Z 14/12/2022 DAG 19 Papers - Attachment 3 - Design Authority ToR v0.8 Papers
2023-12-13 00:00:00Z 13/12/2023 MHHS-DEL2077 - DRAFT BP003C to Support CR036 v1.0 Papers
2022-08-10 00:00:00Z 10/08/2022 DAG 14 Minutes Minutes
2023-11-08 00:00:00Z 08/11/2023 Attachment 3 - Transition Design (Settlement Timetable Transition) Artefacts (zip) Papers
2023-10-11 00:00:00Z 11/10/2023 DAG 29 Headline Report Headline
2023-11-08 00:00:00Z 08/11/2023 Attachment 4 - CR034 Delay to Elexon Level 4 validation response v1.1 Papers
2023-02-01 00:00:00Z 01/02/2023 DAG 20.1 Papers - Attachment 2 - CR014 Changes to the baselined LSS Design v1.0 Papers
2023-12-13 00:00:00Z 13/12/2023 DAG 31 Papers - Attachment 2 - CR034 Delay to Elexon Level 4 validation response v1.2 Papers
2023-07-12 00:00:00Z 12/07/2023 DAG 26 Papers - Attachment 8 - CR024 & CR025 Supporting Evidence v1.0 Papers
2022-06-08 00:00:00Z 08/06/2022 DAG 10 Headline Report Headline
2022-07-06 01:00:00Z 06/07/2022 DAG 11 Papers - Attachment 5 - MHHS-DIP002 Non-Functional Requirements Papers
2022-07-06 00:00:00Z 06/07/2022 DAG 11 Papers Attachment 2 Papers
2023-08-09 00:00:00Z 09/08/2023 Attachment 7 Data Catalogue Papers
2022-03-17 00:00:00Z 17/03/2022 DAG 6.1 Minutes Minutes
2023-03-08 00:00:00Z 08/03/2023 DAG 22 Papers v3.0 Papers
2022-05-11 00:00:00Z 11/05/2022 DAG 9 Minutes Minutes
2024-01-10 00:00:00Z 10/01/2024 DAG 32 Papers - Attachment 1 - CR039 Registration Service IF-40 Change v1.0 Papers
2023-06-14 00:00:00Z 14/06/2023 DAG 25 Papers - Attachment 6 - CR025 DIP Interface Name Changes v1.0 Papers
2023-07-12 00:00:00Z 12/07/2023 DAG 26 Papers - Attachment 6 - CR024 Data Item Names and Descriptions v1.0 Papers
2023-08-09 00:00:00Z 09/08/2023 DAG 27 Papers Papers
2024-03-13 00:00:00Z 13/03/2024 DAG 34 Papers - Attachment 6 - CR046 Enabling Metering Point Energy Flow to be changed more than once v1.0 Papers
2023-09-13 00:00:00Z 13/09/2023 DAG 28 Minutes Minutes
2022-03-17 00:00:00Z 17/03/2022 DAG 6.1 Papers Papers

Testing and Migration Advisory Group (TMAG)

The Testing and Migration Advisory Group (TMAG) closed following the approval of Change Request CR035 Programme proposal to restructure TMAG in the MHHS Governance Framework and other housekeeping updates.

You can view historic TMAG meeting materials below and if you have any questions, please email PMO@mhhsprogramme.co.uk

TMAG was a Level 3 Advisory Group chaired by Programme SRO, Chris Welby. TMAG’s role was to oversee the successful preparation for, and execution of key Testing and Migration deliverables required for Programme go-live. TMAG was originally Testing Advisory Group and expanded to include Migration in March 2022.

TMAG reviewed, validated, sent for consultation, and approved deliverables and milestones for Programme Testing and Migration, and delegated to Level 4 Working Groups where required and reported upwards into the PSG. TMAG was tasked with providing continuity through test scenario and test data definition.

TMAG membership included technical expert testing and migration representatives from each Programme participant constituency. These representatives could request an alternate or additional testing or migration expert to TMAG Chair, if this was required for a specific agenda item. 

You can view the TMAG Meeting Documents in the library below.

TMAG ToR


TMAG Meeting Documents

Meeting papers, Headline Reports, Minutes and any other meeting-related assets can be viewed below. These are listed in date order with the latest meeting at the top. There is a search function at the top right to assist further in finding documents. 

If you have any questions on these historical meeting papers, documentation or deliverables, please contact PMO@mhhsprogramme.co.uk


Date Of Meeting Short Name Sub Type
2023-08-16 00:00:00Z 16/08/2023 TMAG 22 Minutes and Actions Minutes
2022-09-22 00:00:00Z 22/09/2022 TMAG 9 Headline Report Headline
2022-01-26 00:00:00Z 26/01/2022 TMAG 1 Headline Report Headline
2023-05-17 00:00:00Z 17/05/2023 TMAG 18 Papers - Attachment 1 – Release Management and Configuration Management Approach v0.4 Papers
2022-03-16 00:00:00Z 16/03/2022 TMAG 3 Papers Papers
2022-11-16 00:00:00Z 16/11/2022 TMAG 11 Headline Report Papers
2023-08-30 00:00:00Z 30/08/2023 TMAG 23 (Extraordinary) Minutes Minutes
2023-08-30 00:00:00Z 30/08/2023 TMAG 23 Papers Papers
2022-10-19 00:00:00Z 19/10/2022 TMAG 10 Headline Report Headline
2022-10-19 00:00:00Z 19/10/2022 TMAG 10 Papers Papers
2023-09-20 00:00:00Z 20/09/2023 TMAG 24 Minutes Minutes
2023-12-04 00:00:00Z 04/12/2023 TMAG Extraordinary 30 Papers Papers
2022-05-18 00:00:00Z 18/05/2022 TMAG 5 Minutes Minutes
2022-04-20 00:00:00Z 20/04/2022 TMAG 4 Minutes Minutes
2022-06-15 00:00:00Z 15/06/2022 TMAG 6 Minutes Minutes
2023-03-15 00:00:00Z 15/03/2023 TMAG 16 Papers Attachment 1 - NFTWG Terms of Reference Papers
2022-02-16 00:00:00Z 16/02/2022 TMAG 2 Papers Papers
2023-08-16 00:00:00Z 16/08/2023 TMAG 22 Papers Papers
2023-08-16 00:00:00Z 16/08/2023 TMAG 22 Attachment 1 - SIT Readiness Tracker Papers
2022-02-16 00:00:00Z 16/02/2022 TMAG 2 Minutes Minutes
2023-10-23 00:00:00Z 23/10/2023 TMAG 26 Headline Report Headline
2023-09-20 00:00:00Z 20/09/2023 TMAG 24 Headline Report Headline
2023-09-20 00:00:00Z 20/09/2023 TMAG 24 Papers Papers
2022-10-19 00:00:00Z 19/10/2022 TMAG 10 Minutes Minutes
2022-12-21 00:00:00Z 21/12/2022 TMAG 12 Headline Report Headline
2022-11-16 00:00:00Z 16/11/2022 TMAG 11 Papers Papers
2023-11-20 00:00:00Z 20/11/2023 TMAG 29 - Attachment 3 - Environment Approach and Plan (Red-Line) Papers
2023-07-19 00:00:00Z 19/07/2023 TMAG 21 Headline Report Headline
2022-08-17 00:00:00Z 17/08/2022 TMAG 8 papers Papers
2023-07-19 00:00:00Z 19/07/2023 TMAG 21 Minutes Minutes
2023-11-20 00:00:00Z 20/11/2023 TMAG 29 Papers Papers
2023-06-21 00:00:00Z 21/06/2023 TMAG20 Headline Report Headline
2023-12-20 00:00:00Z 20/12/2023 TMAG 31 Papers Papers
2023-01-18 00:00:00Z 18/01/2023 TMAG 13 Papers Papers
2023-11-06 00:00:00Z 06/11/2023 Extraordinary TMAG 28 Papers Papers
2023-01-18 00:00:00Z 18/01/2023 TMAG 13 Minutes Minutes
2023-09-20 00:00:00Z 20/09/2023 TMAG 24 - Attachment 1 - Data Cleanse Working Group ToR v0.1 Papers
2023-11-06 00:00:00Z 06/11/2023 Extraordinary TMAG 28 Minutes Minutes
2023-11-20 00:00:00Z 20/11/2023 TMAG 29 - Attachment 1 - Migration Thresholds Document Papers
2022-07-20 00:00:00Z 20/07/2022 TMAG 7 Minutes Minutes
2023-05-31 00:00:00Z 31/05/2023 TMAG 19 Papers Papers
2022-01-26 00:00:00Z 26/01/2022 TMAG 1 Minutes Minutes
2023-02-28 00:00:00Z 28/02/2023 TMAG 15 Papers Papers
2022-07-20 00:00:00Z 20/07/2022 TMAG 7 Papers - Attachment 1 EWG ToR v0.2 Papers
2023-12-20 00:00:00Z 20/12/2023 Attachment 1 - M15 Acceptance Criteria Papers
2022-01-26 00:00:00Z 26/01/2022 TMAG 1 Papers Papers
2022-08-17 00:00:00Z 17/08/2022 TMAG 8 Minutes Minutes
2022-08-17 00:00:00Z 17/08/2022 TMAG 8 Papers - Attachment 1 QWG ToR Papers
2023-08-30 00:00:00Z 30/08/2023 TMAG 23 Headline Report Headline
2023-09-28 00:00:00Z 28/09/2023 TMAG 25 Minutes Minutes
2023-10-23 00:00:00Z 23/10/2023 TMAG 26 Papers Papers
2023-01-18 00:00:00Z 18/01/2023 TMAG 13 Headline Report Headline
2022-09-22 00:00:00Z 22/09/2022 TMAG 9 Papers Papers
2022-06-15 00:00:00Z 15/06/2022 TMAG 6 Papers Papers
2023-03-15 00:00:00Z 15/03/2023 TMAG 16 Papers Papers
2022-03-16 00:00:00Z 16/03/2022 TMAG 3 Minutes Minutes
2023-08-16 00:00:00Z 16/08/2023 TMAG 22 Headline Report Headline
2023-08-16 00:00:00Z 16/08/2023 TMAG 22 - SIT Testing and Qualification of UMS for Suppliers Headline
2023-05-31 00:00:00Z 31/05/2023 TMAG 19 Attachment 1 - Migration Cutover and Data Strategy Papers
2023-02-15 00:00:00Z 15/02/2023 TMAG 14 Headline Report Headline
2022-12-21 00:00:00Z 21/12/2022 TMAG 12 Papers Papers
2023-09-28 00:00:00Z 28/09/2023 TMAG 25 Papers Papers
2023-05-31 00:00:00Z 31/05/2023 TMAG 19 Minutes Minutes
2022-11-16 00:00:00Z 16/11/2022 TMAG 11 Minutes Minutes
2023-12-04 00:00:00Z 04/12/2023 TMAG Extraordinary 30 Minutes Minutes
2023-06-21 00:00:00Z 21/06/2023 TMAG 20 Minutes Minutes
2023-10-30 00:00:00Z 30/10/2023 Extraordinary TMAG 27 Minutes Minutes
2022-08-17 00:00:00Z 17/08/2022 TMAG 8 Papers - Attachment 2 MHHS replan Papers
2023-02-15 00:00:00Z 15/02/2023 TMAG 14 Papers Papers
2023-05-17 00:00:00Z 17/05/2023 TMAG 18 Minutes Minutes
2023-05-17 00:00:00Z 17/05/2023 TMAG 18 Papers Papers
2023-10-23 00:00:00Z 23/10/2023 TMAG 26 Minutes Minutes
2023-02-28 00:00:00Z 28/02/2023 TMAG 15 - minutes Minutes
2023-11-20 00:00:00Z 20/11/2023 TMAG 29 - Attachment 4 - Environment Approach and Plan - updates following PP review Papers
2023-12-20 00:00:00Z 20/12/2023 Attachment 2 - M15 Acceptance Criteria Red-Lined Papers
2023-11-20 00:00:00Z 20/11/2023 TMAG 29 - Attachment 2 - Migration Thresholds Document (Red-Lined) Papers
2023-03-15 00:00:00Z 15/03/2023 TMAG 15 Headline Report Headline
2022-12-21 00:00:00Z 21/12/2022 TMAG 12 Papers - Attachment 2 - Replan slides Papers
2024-01-17 00:00:00Z 17/01/2024 TMAG 32 Papers Papers
2023-12-20 00:00:00Z 20/12/2023 Attachment 3 - Migration Message Processing Choreography Update Papers
2022-08-17 00:00:00Z 17/08/2022 TMAG 8 Headline Report Headline
2023-02-15 00:00:00Z 15/02/2023 TMAG 14 Papers - Attachment 2 - Data Assessment Report v0.2 Papers
2024-01-17 00:00:00Z 17/01/2024 TMAG 32 Headline Report Headline
2023-03-15 00:00:00Z 15/03/2023 TMAG 16 Minutes Minutes
2022-03-16 00:00:00Z 16/03/2022 TMAG 3 Headline Report Headline
2023-05-31 00:00:00Z 31/05/2023 TMAG 19 Attachment 2 - Overarching Test Data Approach & Plan Papers
2023-05-17 00:00:00Z 17/05/2023 TMAG 18 Papers - Qualification Approach and Plan v0.2 Redlined Papers
2023-12-20 00:00:00Z 20/12/2023 TMAG 31 Headline Report Headline
2022-02-16 00:00:00Z 16/02/2022 TMAG 2 Headline Report Headline
2022-07-20 00:00:00Z 20/07/2022 TMAG 7 Headline Report Headline
2023-10-30 00:00:00Z 30/10/2023 Extraordinary TMAG 27 Papers Papers
2022-04-20 00:00:00Z 20/04/2022 TMAG 4 Headline Report Headline
2023-04-19 00:00:00Z 19/04/2023 TMAG 17 Minutes Minutes
2023-07-19 00:00:00Z 19/07/2023 TMAG 21 Papers Papers
2023-12-20 00:00:00Z 20/12/2023 Attachment 4 - TORWG ToR Papers
2023-11-20 00:00:00Z 20/11/2023 TMAG 29 - Attachment 5 - Environment Approach and Plan - updates following EES amendment Papers
2023-02-15 00:00:00Z 15/02/2023 TMAG 14 Minutes Minutes
2023-02-28 00:00:00Z 28/02/2023 TMAG 15 Papers - Attachement - Data Assessment Report Papers
2023-05-17 00:00:00Z 17/05/2023 TMAG 18 Headline Report Headline
2022-12-21 00:00:00Z 21/12/2022 TMAG 12 Minutes Minutes
2023-11-20 00:00:00Z 20/11/2023 TMAG 29 Minutes Minutes
2023-11-20 00:00:00Z 20/11/2023 TMAG 29 Headline Report Papers
2023-05-17 00:00:00Z 17/05/2023 TMAG 18 Papers - Qualification Approach and Plan v0.2 Papers
2023-02-15 00:00:00Z 15/02/2023 TMAG 14 Papers - Attachment 1 - Environment Approach Plan v2.2 Papers
2023-05-31 00:00:00Z 31/05/2023 TMAG 19 Attachment 2 - Population of Data Items for Testing Papers
2022-04-20 00:00:00Z 20/04/2022 TMAG 4 Papers Papers
2022-07-20 00:00:00Z 20/07/2022 TMAG 7 Papers Papers
2022-09-22 00:00:00Z 22/09/2022 TMAG 9 Minutes Minutes
2022-06-15 00:00:00Z 15/06/2022 TMAG 6 Headline Report Headline
2023-04-19 00:00:00Z 19/04/2023 TMAG 17 Headline Report Headline
2023-05-31 00:00:00Z 31/05/2023 Extraordinary TMAG 19 Headline Report Headline
2022-05-18 00:00:00Z 18/05/2022 TMAG 5 Headline Report Headline
2023-06-21 00:00:00Z 21/06/2023 TMAG 20 Papers Papers
2022-12-21 00:00:00Z 21/12/2022 TMAG 12 Papers - Attachment 1 Papers
2023-04-19 00:00:00Z 19/04/2023 TMAG 17 Papers Papers
2022-05-18 00:00:00Z 18/05/2022 TMAG 5 Papers Papers