Describe a typical engineering change process in product development?

A typical ECR/ECO process includes: 1) ECR submission identifying the problem and proposed solution, 2) Impact analysis evaluating effects on cost, schedule, and other components, 3) Review board (CCB) approval considering all stakeholders, 4) Implementation planning for timing and affected parts, 5) Documentation updates to drawings, BOMs, and specifications, 6) ECN distribution to notify affected departments, and 7) Verification that changes are correctly implemented. PLM systems automate workflow and tracking.