business_case: customer_name: "Synthetic Commerce Co." cover_subtitle: "ADB-S to ADB-D Migration Business Case" prepared_by: "Diego Cabrera" prepared_by_role: "Solutions Architect" date: "2026-05-08" executive_summary: > Synthetic Commerce Co. is evaluating a move from ADB-S to ADB-D for a fraud analytics workload where predictable performance, read-path cleanup, and storage economics are more important than a pure near-term cost takeout. drivers: primary: "Stabilize fraud analytics performance while keeping the business case auditable." urgency: "Validate capacity, TCO crossover, and migration bridge assumptions before procurement." adbs_to_adbd: license_model: BYOL discount_pct: 0.11 ecpu_per_db_node: 760 current: label: "ADB-S As-Is" workload_ecpu: 2400 storage_tb: 96 read_architecture: "Refreshable/read clones serve application reads; standby is not the application read path." target: label: "ADB-D Dedicated" workload_ecpu: 2400 storage_tb: 96 db_nodes: 5 storage_servers: 3 read_architecture: "Local ADG read-only standby serves application reads; steady-state clones retired." forecasts: - period: "24M" display_label: "Year 2" as_is: workload_ecpu: 3150 storage_tb: 128 to_be: workload_ecpu: 3150 storage_tb: 128 db_nodes: 6 storage_servers: 3 - period: "36M" display_label: "Year 3" as_is: workload_ecpu: 3900 storage_tb: 166 to_be: workload_ecpu: 3900 storage_tb: 166 db_nodes: 8 storage_servers: 3 goldengate: mode: migration_bridge_only ocpus: 4 bridge_months: 3 bridge_one_time_cost: 0 storage_economics: base_break_even_tb: 91 business_impact: business_impact_per_hour: 0 crossover_chart: y_axis_min: 1.5 y_axis_max: 3.5 y_axis_major_unit: 0.5 roadmap: total_duration: "12 weeks" phases: - name: "Define" duration: "2 weeks" deliverables: ["Baseline current BOM", "Confirm success metrics"] - name: "Design" duration: "4 weeks" deliverables: ["Dedicated capacity plan", "Read-path validation"] - name: "Deliver" duration: "6 weeks" deliverables: ["Migration bridge", "Cutover rehearsal"] recommendation: summary: "Proceed with detailed design for the ADB-D Dedicated target, validating the utilization, storage break-even, and GoldenGate bridge assumptions before final commercial approval." next_steps: - action: "Confirm workload ECPU demand and storage forecast" owner: "Customer" deadline: "Before design sign-off" - action: "Validate ADB-D DB node and storage server reservation" owner: "Oracle" deadline: "Before procurement" deck_validation: forbidden_phrases: - "OCI Annual" - "FTE-year" - "if 4x3 is selected"