Baselined Design Artefacts

Here you will find the Baselined Design Artefacts in document form. The Baselined Design Artefacts on this page are the approved versions of the Design for Programme participants to deliver against.

The Artefacts are grouped into four themes which are provided in separate libraries, accessible via the links below:

Meter to Bank Library covers the processes associated with the collection and processing of data through to settlement
Metering Changes Library covers the processes associated with metering such as disconnections, changes to energization status or change of meter
MPAN Ownership Library covers the processes associated with the appointment of parties such as supplier, metering service or data service
Supporting Documents Library covers the end-to-end design

The Design Models have been developed to support participants in developing the design within their organisations. These are available on the Collaboration Base.

In response to participant questions, we have included the Design Artefact Matrix and Design Signposting, which you can access below.

The Baselined Design Artefacts in the ‘Themes' above reflect the latest Interim Release published by the Programme. To support Programme participant testing and delivery, we've also published dedicated pages on this website for the following releases:

To view the Red-lined versions of the Design Artefacts and the accompanying Interim Release Notes, please visit the Red-Lined Design Artefacts page of this website.

The Programme has also published Artefacts and Solution Documents detailing the changes required to Data Transfer Network (DTN) flows for MHHS. You can view these on the MHHS impacts to Data Transfer Network (DTN) Flows page of this website.

If you'd like to raise a Design issue, please email Design@mhhsprogramme.co.uk

Design Artefacts Guides

The Design Team have developed a series of documents to support understanding of the Design Artefacts, along with some Q&A:

Design Artefacts Guidance & Signposting to help participants identify the Design Artefacts relevant to their organisation

Design Artefacts Matrix to help constituencies understand which Design Artefacts are of most relevance to them

MHHS Knowledge Baseprovides answers to all Design-related questions we've received regarding Design. You can click on the link above, or view the Knowledge Base on the Collaboration Base under 'Programme Information'.

Design Artefacts: DateTime Guidance This guidance is uplifted to v1.2 and has been provided to support the implementation of CR036: Use of Clock Midnight for Appointments and Reads. It does not change the design to CR036 but provides clarity to Programme participants about how to use the DateTime fields in MHHS Flows in line with Interim Release 7 onwards. For more information on CR036, please click here: CR036: Use of Clock Midnight for Appointments and Reads.

Meter Reading Service Guidancehas been provided to support the implementation of Meter Reading Service as part of the Smart Data Service Role and does not change the Design. However, a Design Issue Notification (DIN-1066) has been raised to provide clarifications and there will be a minor amendment of Balancing & Settlement Code (BSC) Code Drafting to make the Design intent clearer.

Data Integration Platform (DIP) Application Programming Interface (API) Message Exchange Guidance has been provided to supplement guidance on the End-to-End Solution Architecture document. This is to support participants with the message exchange with the DIP, including message batching, API/webhook behaviour and message sizes.

Advanced Load Shapes Guidance has been provided to clarify which Load Shapes are applied for the Advanced Market Segment:

Where a customer has consented to HH readings and;
Where a customer has opted out of HH readings

Use of Boolean Data Type Guidance has been published following a number of Defects identified in Systems Integration Testing (SIT). This guidance has been provided to clarify how Programme participants should use the Boolean Data Types within the Data Integration Platform (DIP) routed JSON format messages.

If you have any questions about these documents, please email the Design Team at Design@mhhsprogramme.co.uk

Design Playback sessions

To support participant in their understanding of the End-to-End MHHS Design we hosted a number of Design Playback sessions.

We held 14 sessions, totaling 18 hours and 35 minutes, with 1,612 overall attendees across all the Playbacks.

We've worked across the Programme to answer the questions received during the Design Playbacks. You can view these in the MHHS Design Q&A.

You can watch the recordings of all the sessions, and view the accompanying slides, on the Design Playbacks page of this website.

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

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