Ransford's NotesCourses
Workspace

London Transformation Walkthrough

Walk through London Grid Distribution's transformation roadmap and evidence gates, showing how Phase F migration planning works in a regulated utility context.

Phase F, Migration PlanningDerived from TOGAF

London roadmap evidence gates: from board commitment to filed regulator evidence

Six gates trace the London transformation roadmap as an evidence chain. Each gate names the function that owns it, the milestone it clears, and the artefact filed at that gate.

The roadmap exists because Ofgem reads it. Each gate produces a filed artefact that the board can defend under audit, and the chain closes when first-year operation is evidenced.

London roadmap evidence gates: from board commitment to filed regulator evidence A vertical evidence ladder of six RIIO-ED roadmap gates joined by downward arrows, with a left axis reading evidence accumulates. G1 Commitment, owned by the Board, files the signed commitment. G2 Design, owned by Architecture, files the vision with Ofgem. G3 Build, owned by Delivery, files build evidence packs. G4 Test, owned by Pilot, files pilot reports and test passes. G5 Release, owned by Go-live, files go-live evidence and a rollback path. G6 Operate, owned by Operations and emphasised in red, files first-year operational evidence. A red note states the chain closes at Operate, where the roadmap becomes defensible end to end. Evidence accumulates G1CommitmentRIIO-ED commitment is signed offFiled: signed board commitmentBoard designs G2DesignArchitecture vision is agreedFiled: vision lodged with OfgemArchitecture builds G3BuildDelivery teams complete the buildFiled: build evidence packsDelivery tests G4TestPilots pass their acceptance testsFiled: pilot reports and test passesPilot releases G5ReleaseService goes live with a rollback pathFiled: go-live evidence and rollbackGo-live operates G6OperateFirst year of operation is evidencedFiled: first-year operational evidenceOperations