# Model decision register

| Concept | Decision | Governed representation |
|---|---|---|
| Value Stream | New root | WM-ACT-055 |
| Value Stream Realization | New reviewable root | WM-XCT-041 |
| Value Stream Stage | Contained | Ordered value-state transition inside WM-ACT-055 |
| Internal / external stream | Classification | Boundary role on a stream version |
| Value Stream Map / Landscape / Portfolio | Projection | Reproducible view over stream definitions and relations |
| Journey | Projection | Perspective-specific traversal over interactions and streams |
| Process / workflow | Reuse | WM-ACT-003 realizes stages |
| Process execution | Reuse | Existing run/event semantics provide execution evidence |
| Outcome | External reference | Goal/outcome classes and observations remain separately mastered |
| Benefit realization | Profile | Evidence and attribution over outcomes; no duplicate root here |
| Value proposition | Contained elsewhere | Business-model or offering assertion, referenced by streams |
| Value exchange | Relationship | Reciprocal rights, obligations, transfers and outcomes |
| Business Capability | Separate candidate | Earlier strategy contour; no duplicate allocation here |
| Capability Realization | Separate candidate/profile | Earlier strategy contour; no duplicate allocation here |
| Metric Definition | Separate candidate | Earlier data contour; no duplicate allocation here |