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M3 Framework Introduction M3 Framework Overview M3 Phase 0 - Assessment M3 Phase 1 - Readiness M3 Phase 2 - Selection M3 Phase 3 - Engagement M3 Phase 4 - Migration M3 Phase 5 - Operations M3 Resources
M3 Playbook > Phase 5: Operations
5.6 Decommission Legacy Systems
5.5 Maintain Applications Post Go-Live
5.7 Conduct Continuous Improvement
Image Map Phase 0: Assessment Phase 1: Readiness Phase 2: Customer Readiness Phase 3: Engagement Phase 4: Migration Phase 5: Operations
Objective: Retire legacy systems including hardware, software, licenses, interface, and close out support contracts.

Phase 5 GuidanceLegend - Customer, Provider, Shared
Activities
1. Once the Cutover Plan is complete, execute the Decommission Plan (C)
2. Finalize plans for hardware disposition, software licensing, and contract end of life plan (C)
3. Archive software, data, and documentations (security and access) necessary to bring back the system if required (C)
4. Retire applications, databases, and hardware per requirements (C)
5. Provide Decommission Report (C)

Inputs
• Cutover Plan
• Decommission Plan

Outputs
• Decommission Report
Stakeholders
• Program Manager (C)
• Business Owner (C)
• Functional Lead (C)
• Technical Lead/Solution Architect (C)
• Security SME (C)
• Network SME (C)
• O&M Team (C)
• PMO Lead (C)

Best Practice
• Build the decommission plan into the overall migration program to capitalize on cost reduction and operational improvements