Assessment & Discovery
1. Build the estate inventory
Capture at least:
- source systems and owners
- BW systems, InfoProviders, queries, process chains
- Datasphere spaces and objects
- connections and integration methods
- data volumes and growth
- load frequency and latency
- business-critical reports
- security and data-access rules
- SLAs and batch windows
- dependencies and consumers
- custom code and unsupported patterns
- retention and archival requirements
2. Score migration candidates
A useful scoring model is:
Priority = Business Value × Migration Readiness × Risk Reduction
Then separately score complexity, data volume, semantic complexity, dependency count, and operational criticality.
High-value, low-dependency workloads make good pilots. Mission-critical, highly coupled workloads usually belong in later waves.
3. Dependency graph
Do not assess an object in isolation. Trace:
Source → acquisition → persistence → transformation → semantic model → analytical model → consumer
A report that looks simple may depend on dozens of upstream objects.
4. Readiness gates
Before migration, require:
- source ownership confirmed
- target pattern selected
- supported conversion path verified
- security model mapped
- reconciliation rules defined
- rollback decision documented
- operational owner assigned
SAP provides a Readiness Check for SAP Datasphere, SAP BW bridge to assess important implications when converting SAP BW 7.x or SAP BW/4HANA estates.
5. Deliverable
The assessment should end with a heat map, dependency graph, candidate waves, risks, and a target-state decision—not merely an inventory spreadsheet.