To implement APQP, you need to follow five distinct phases and their associated activities. The Plan and Define phase involves defining the scope, objectives, deliverables, resources, timeline and quality standards of the project, as well as conducting a feasibility analysis, a risk assessment and a customer needs analysis. The Product Design and Development phase requires designing and testing the product specifications, features, functions and performance, verifying that it meets customer and regulatory requirements, and documenting the design outputs and changes. The Process Design and Development phase involves designing and testing the production processes, equipment, materials and methods; verifying that the process meets product specifications; and documenting the process outputs and changes. The Product and Process Validation phase requires validating and verifying that the product and process meet quality standards and customer expectations through a pilot run, a production trial run and a customer trial run. Finally, the Feedback, Assessment and Corrective Action phase entails evaluating product/process performance, identifying/implementing corrective actions, updating documentation/records, monitoring/controlling quality throughout production cycle.