Inspection and functional test are different tasks

Define inspection and test steps in operational terms. Identify the required inputs, equipment and pass/fail output for each step.

Link results to the board or batch and its revision. Make the required retention and delivery format part of the project brief.

Write down the missing information from this guide and assign an owner to each item. Keep the current revision of your brief with the associated drawings and records.

Write the test objective in terms of an observable result. Visual inspection can identify particular assembly conditions, while an electrical or functional test checks defined behavior under specified conditions. Each method has a scope; neither should be described as proving every possible failure mode. For a functional test, provide the required fixtures, interfaces, power conditions, firmware version, expected signals and pass/fail limits. State whether programming, calibration and test records are included. If the supplier is expected to develop the fixture or procedure, make that a separate responsibility in the proposal. Consider how failures are classified, reviewed and retested after corrective work. Retain a clear connection between a result and the board or batch tested. Reviewing the test plan early helps the design team include access points and reduces the risk of discovering after assembly that the agreed behavior cannot be checked efficiently.