| Phase |
Step |
OEM Process Content (Client-Provided Design) |
Key Deliverables / Decision Gates |
| Phase 1: Project Initiation & Definition |
1. Requirements Analysis & Quotation |
The client provides complete product specifications, design drawings, BOM (Bill of Materials), and samples. The manufacturer evaluates design feasibility, production capacity, material costs, and quality standards. |
Quotation: Includes unit price, mold/tooling cost (NRE), Minimum Order Quantity (MOQ), lead time, and payment terms. |
| 2. Technical Review & Agreement Signing |
The manufacturer's engineering team conducts a Design Review (DR), identifies manufacturing challenges and potential risks, and provides Design for Manufacturability (DFM) feedback. Both parties agree on any modifications. |
Non-Disclosure Agreement (NDA) Technical Agreement / Solution Confirmation Commercial Contract |
| Phase 2: Product Development & Verification |
3. Design & Prototyping |
Based on the client's finalized design, the manufacturer proceeds with tooling (for housing, structural parts) and procures materials per the client's specified brands. Functional prototypes are built. |
Mold/Tooling Design Appearance/Structural Mock-up Functional Prototype Units |
| 4. Sample Testing & Certification |
Prototypes are submitted to the client for comprehensive functional, performance, and reliability testing. Design refinements are made based on client feedback. The manufacturer assists or arranges necessary product certifications (e.g., UL, CE, FCC). |
Engineering Verification Test (EVT) Report Client Sample Approval Certification Documents |
| 5. Pilot Run & Process Validation |
A small pilot batch (e.g., 50-200 units) is produced using final tools and materials to validate the entire production line and processes. This confirms assembly flow, test fixture reliability, and production cycle time. |
Design/Process Validation Test (DVT/PVT) Report Mass Production SOPs & Inspection Plans Golden Sample (Packaging Approved) |
| Phase 3: Mass Production Preparation |
6. Material & Capacity Planning |
Based on the client's order forecast, the manufacturer places long-term material purchase orders (especially for long-lead-time components) and secures production line capacity. |
Master Production Schedule (MPS) Material Requirements Planning (MRP) Capacity Confirmation |
| Phase 4: Mass Production & Delivery |
7. Mass Production & Quality Control |
Assembly proceeds on the production line according to the approved SOPs. Strict in-line quality control is enforced: IQC (Incoming Quality Control), IPQC (In-Process Quality Control), OQC (Outgoing Quality Control). |
Daily/Weekly Production Reports Quality Control (QC) Inspection Reports Final Test Records |
| 8. Logistics & Delivery |
Finished products are packaged and labeled (with client's brand). Shipping (sea/air freight) is arranged, and complete shipping documents are provided (Packing List, Commercial Invoice, Certificate of Origin, etc.). |
Bill of Lading (B/L) Commercial Invoice Container Loading Photos/Videos |
| Phase 5: After-sales Support |
9. After-sales Service & Feedback |
Provides agreed warranty services. Receives feedback on field failures, conducts Root Cause Analysis (RCA), and implements Corrective and Preventive Actions (CAPA) in subsequent production. |
Root Cause Analysis (RCA) Report Corrective & Preventive Action (CAPA) Notice Spare Parts Inventory List |
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