Phase 1
Landscape assessment and asset rationalization
Confirm BW/BW/4HANA release, database, hosting, connected systems, InfoObjects, InfoProviders, ADSOs, InfoCubes, CompositeProviders, transformations, DTPs, process chains, ABAP routines, BEx queries, sources, extractors, ODP/Open Hub outputs, usage, owners, data volumes, history, licensing, and permissions. Identify obsolete, duplicated, and inactive assets.
Potential deliverables: BW object inventory, dependency and lineage map, custom-code assessment, source/extraction matrix, reporting inventory, migration backlog, risk register, and prioritized roadmap.
Phase 2
Target architecture and migration design
Choose supported extraction, application-source ingestion, SAP BDC sharing, or hybrid coexistence. Define catalogs, schemas, ownership, access controls, Bronze/Silver/Gold products, object mappings, routine patterns, historical/delta strategy, orchestration, BI semantics, tests, acceptance, and cost assumptions.
Potential deliverables: Target architecture, source-to-target mapping, data-product model, ABAP modernization specification, ingestion/delta design, governance model, validation/cutover plan, and cost assumptions.
Phase 3
Data extraction and logic modernization
Configure approved SAP interfaces; load and validate history; establish monitored deltas; implement reviewed PySpark/Spark SQL; rebuild master data, hierarchies, semantic logic, Delta tables, views, Lakeflow orchestration, quality checks, error handling, version control, and tests.
Potential deliverables: Ingestion pipelines, Bronze/Silver/Gold assets, reviewed transformations, ABAP exception register, master-data and hierarchy models, orchestration jobs, and technical test evidence.
Phase 4
Reconciliation, performance, and business acceptance
Compare equivalent snapshots, counts, keys, balances, currencies, units, aggregates, hierarchies, texts, BEx queries, reports, delta changes, performance, permissions, retries, and recovery. Resolve discrepancies and obtain business sign-off.
Potential deliverables: Reconciliation report, financial/operational control totals, report evidence, benchmarks, defect/exception register, security tests, and business acceptance.
Phase 5
Production cutover and continuous optimization
Deploy production jobs, monitoring, alerts, support ownership, runbooks, and recovery. Transition consumers, run parallel processing if needed, freeze and reconcile source snapshots, cut over with rollback controls, retire BW assets only after approval, then optimize.
Potential deliverables: Production data products and pipelines, runbooks, monitoring, cutover/rollback evidence, retirement approval, and optimization backlog.