Inspection Coverage
Why the percentage and location of examined material matter when interpreting results.
What this topic covers
Why the percentage and location of examined material matter when interpreting results.
Core ideas
Coverage may be defined by area, weld count, circuit, component count or other suitable boundary.
Random, representative and targeted inspection approaches answer different questions.
High nominal coverage can still miss a localized mechanism if inspection locations are poorly selected.
Program tradeoffs
Coverage, access, technique limitations and uncertainty should be visible in the final record.
What good evidence looks like
Inspection findings need a closed path to engineering assessment, maintenance, monitoring or documented acceptance.
Lifecycle perspective
Formal code inspection and risk-based inspection require competent specialists and current standards.