We are publishing the latest information on Design Status so that you have easy access to an overview of progress on Design.
You can view the reports by clicking on the links below, with the most recent report at the top of the list.
The reports provide key updates on the Design Artefact Roadmap, Design Development Process, Success Criteria and Confidence Indicators, Target Outcomes and Participant Engagement.
One of the key outputs of Ofgem’s initial electricity settlement reform Significant Code Review (SCR) was the development of a Target Operating Model (TOM) to deliver market-wide half-hourly settlement.
A series of working groups contributed to developing the TOM that Ofgem published in October 2019. These groups were a Design Working Group, a Code Change and Development Group, an Architecture Working Group and a Design Advisory Board.
The MHHS Design is the foundation to the new ways of operating settlement. The MHHS Design will impact all parts of the industry, albeit in different ways, depending on the systems and processes that participants operate.
Ofgem has stated that the aim is to reach consensus on Design through engagement and consultation. If consensus cannot be reached, decisions will need to be taken in the best interest of the overall MHHS Programme objectives and plan.
The Design is being developed through real-time consultation with industry under the structure defined in Programme Governance.
Level 4 Working Groups and sub-groups have been established, as shown via the link below, with responsibility to review the Design Artefacts and work through gaps and issues to resolution.
Key decisions are made at the Level 3 Design Advisory Group (DAG) that reports to the Programme Steering Group (PSG).
Design Artefacts
Design Artefacts is the name for the suite of documents that form the design to support the new TOM. The Design Artefacts are logged into an architecture repository to assure for integrity, traceability, quality and to manage change control.
Business Process Diagrams
There are 26 Business Process diagrams to detail data collection and data processing, with swim-lanes to distinguish responsibilities for each element of the process.
Logical Interface Specifications
There are 37 logical Interface Specifications that describe data models and data catalogues for interfaces between systems.
Other Design Artefacts
There are a series of other Design Artefacts, varying in content, that include business requirements specifications and non-functional specifications (such as security, performance and scalability).
MHHS Programme Collaboration Base
As mature drafts become available, or are updated through review cycles, the documents are available in the MHHS Collaboration Base – simply navigate to the Design Documents Library.
As documents are often updated frequently, to ensure you are working from the latest version, please refer to and work from the documents published on the MHHS Collaboration Base.
The Design Artefacts have been grouped into four logical groupings, as far as possible.
There are interdependencies between the Artefacts that cannot be avoided. This means that design changes in later tranches may require a review and update of Design Artefacts in an earlier tranche. Therefore approval of each tranche of documents can only be conditional i.e. conditional on there being no requirement to change the design due to review of a later Artefact.
The core areas covered in each Tranche are listed below:
Design Artefact Tranche 1
Design Artefact Tranche 2
Design Artefact Tranche 3
Design Artefact Tranche 4
An enduring MHHS Design toolset is being developed using iServer 365 that will be the repository of the Design. The MHHS Design iServer solution allows design content to be presented in context and with supporting material.
iServer 365 has been chosen for the following reasons::
Access to the MHHS Design tool on iServer will be provided to participants from baseline through to post-Programme.
To supplement the Design Artefacts on the MHHS Portal we have developed a dedicated Design Newsletter with the first issue on 24 May. This will provide key updates, summaries and signposting to support you in delivering MHHS. The Design Newsletter will be issued every two weeks in line with the Design Status report.
The Clock will continue to be issued every Wednesday, covering all aspects of the MHHS Programme including key Design news.
If you already receive The Clock, you will automatically receive the Design Newsletter. You will have the option to unsubscribe at any time.
If you do not currently receive The Clock and wish to sign up to the Design Newsletter, simply complete the form below and the issues will automatically be delivered to your inbox.
