| Current-state assessment | Establish evidence and constraints | Estate inventory, pain points, risks, costs, controls, maturity and priority findings | Documentation, access, stakeholder interviews and operational evidence |
| Requirements and KPI catalogue | Connect design to business use | Reports, decisions, definitions, dimensions, history, latency and acceptance criteria | Business owners, report consumers and control functions |
| Target architecture | Define platform responsibilities | Logical and physical views, integration, environments, security zones and interfaces | Enterprise standards, platform constraints and non-functional requirements |
| Data models and mappings | Create reusable analytical structures | Facts, dimensions, vault entities, keys, relationships, transformations and lineage | Source expertise and business definition approval |
| Engineering and test assets | Implement and validate pipelines | Code, orchestration, tests, reconciliation, deployment, monitoring and documentation | Development access, test data and release governance |
| Migration and release plan | Control transition risk | Waves, dependencies, parallel run, cutover, rollback, archival and acceptance | Business calendar, support coverage and decision authority |
| Governance and operating pack | Sustain service after launch | Ownership, controls, SLAs, runbooks, incident routes, change process and KPI reporting | Named owners, support model and policy alignment |