01 · QUESTION / INTENT
Plan evidence, validation, commercial and production gates backward from the real launch date.
02 · DIRECT ANSWER
Use a gated plan: requirement freeze, document screen, samples and test plan, pack/BMS integration, pilot/DVP&R, compliance and transport closure, commercial/supply approval, production-representative lot, SOP/COD readiness and controlled ramp. Durations depend on evidence gaps and application; do not promise a universal lead time.
03 · DECISION TABLE
| Decision factor | Decision direction | Confirm before approval |
|---|---|---|
| Entry gate | Start only with a named project, owner and decision criteria. | Application, architecture, timeline, quantity and open items. |
| Validation gate | Release each stage against written acceptance criteria. | Samples, pack tests, pilot lots, reports and deviations. |
| Launch gate | Close supply, quality, compliance, logistics and service together. | Capacity, PPAP-like records, route booking, spares and escalation. |
04 · ENGINEERING EXPLANATION
Build the critical path from the longest uncertain evidence or test, not from sample shipping. Run technical, compliance and commercial work in parallel where dependencies allow, while keeping clear exit criteria and configuration control.
05 · APPLICATION / MARKET MAPPING
Vehicle SOP is tied to platform release and production validation; BESS COD is tied to EPC, commissioning and performance acceptance; industrial and marine projects add equipment or class approval gates.
06 · EVIDENCE AND TEST CONDITIONS
- Integrated schedule with owners, dependencies, entry/exit criteria and evidence deliverables.
- Configuration baseline, decision log and risk/issue register at every gate.
07 · RISKS / NOT SUITABLE WHEN
- Sample arrival is not technical approval, and technical approval is not supply readiness.
- Late model, factory, firmware or route changes can reopen completed gates.
08 · FAQ
Can stages overlap?
Yes, where inputs are stable and rollback is affordable; do not overlap work that depends on an unfrozen configuration.What is the first date to request?
The latest date for design freeze/technical approval, then work backward from SOP or COD and required production/logistics milestones.BUYING COMMITTEE ANSWERS
Engineering
Owns technical gates, DVP&R and configuration freeze.Procurement
Owns samples, commercial approval, capacity and delivery milestones.Quality
Owns pilot/production evidence and lot release.Compliance / Logistics
Owns certification and route closure before shipment gates.Finance / Project
Owns contingency, delay cost and approval-to-revenue linkage.Management
Owns cross-functional gates, escalation and go/no-go decisions.10 · PROJECT CTA