| Current-state assessment | Workloads, architecture, data flows, controls, costs, risks and capability gaps | Assessment report and findings register | Discovery | Inventories, diagrams, access and interviews | Joint |
| Target platform architecture | Services, data zones, integration, security, governance, resilience and environments | Architecture pack and decision records | Design | Requirements and approval criteria | DataConsultant with client approval |
| Engineering assets | Pipelines, models, configuration, tests, CI/CD and infrastructure code within scope | Version-controlled repositories | Build | Environments, credentials and source access | DataConsultant |
| Migration and validation pack | Wave plan, mappings, reconciliation, cutover, rollback and acceptance evidence | Working plans and test records | Migration | Business validation and change windows | Joint |
| Operating model and runbooks | Roles, support flows, monitoring, incidents, access, change, cost and quality procedures | Operations handbook | Transition | Named owners and support model | Joint |
| Training and handover | Architecture walkthroughs, engineering guidance, administrator and user enablement | Sessions, recordings where agreed, and guides | Handover | Attendees and learning priorities | DataConsultant |