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2.6 KiB
2.6 KiB
Application Rationalization Playbook
Guide Origin: Community | ArcKit Version: [VERSION]
/arckit:application-rationalization turns the application inventory into portfolio decisions. It applies keep, merge, replace, and retire recommendations with rationale, target-state implications, benefits, risks, and implementation sequencing.
Inputs
| Artefact | Purpose |
|---|---|
Application inventory (ARC-<id>-APP-v1.0.md) |
Mandatory application baseline |
Business capability map (ARC-<id>-BPCM-v1.0.md) |
Capability criticality and target capability support |
Architecture decision records (ARC-<id>-ADR-*.md) |
Existing platform and technology decisions |
ADM preliminary (ARC-<id>-ADMP-v1.0.md) |
Transformation scope and strategy context |
Transition architecture (ARC-<id>-TRANS-v1.0.md) |
Existing migration sequencing if already planned |
| Vendor contracts or cost models | Licensing, support, commercial constraints |
Command
/arckit:application-rationalization <project ID or portfolio scope>
Output: projects/<id>/ARC-<id>-APPR-v1.0.md
Decision Model
| Decision | Use When |
|---|---|
| Keep | Application is strategically aligned, healthy, and cost-effective |
| Merge | Duplicate capabilities can be consolidated into fewer services |
| Replace | Capability is needed but the current application is unfit |
| Retire | Capability is obsolete, unused, or better served elsewhere |
Deliverable Snapshot
| Section | Contents |
|---|---|
| Rationalisation Summary | Portfolio-level decision distribution |
| Per-Application Decisions | Decision, rationale, evidence, owner, timing |
| Portfolio Target State | Future application landscape and consolidation view |
| Benefits | Cost, complexity, risk, and capability benefits |
| Risks | Delivery, vendor, operational, and compliance risks |
| Sequencing | Order of decisions and dependencies |
| Pending Approvals | Decisions requiring board, sponsor, or commercial approval |
Review Checklist
- Every decision is evidence-backed, not preference-based.
- Critical capabilities remain covered in the target state.
- Retirement and replacement decisions include migration and data handling notes.
- Vendor, licence, and contract constraints are visible.
- Pending approvals are explicit and traceable.
Related Commands
/arckit:gap-analysis- Reassess gaps after rationalisation./arckit:transition-architecture- Convert decisions into work packages./arckit:architecture-board- Approve high-impact portfolio decisions.