Inspection & Test Plans (ITPs)

What this topic covers

How planned verification points organize manufacturing and construction quality evidence.

Core testing ideas

An ITP identifies operations, inspections, tests, records and responsible parties.

Witness and hold points can coordinate customer, supplier and third-party involvement.

ITPs should reference controlled procedures and specifications rather than duplicate them.

Measurement and method limits

A result is only meaningful when the characteristic, units, method and acceptance requirement are clear.

Evidence and traceability

Traceability and documentation let later reviewers understand what was tested and with which equipment and method.

Using the result

Inspection plans should focus effort on meaningful characteristics instead of collecting data without a decision path.