Frequently Asked Question
Requirement-based verification
Verification demonstrates that a design output meets a stated requirement. Each requirement needs a method—analysis, inspection, test, or demonstration—together with configuration, conditions, instrumentation, sample size, acceptance criterion, and report ownership. Trace the result back to the requirement revision and record deviations.
Worked example
For a 20–35 N opening-force requirement, define temperature, orientation, hand position, cycle state, gauge accuracy, sample count, and acceptance rule before testing. A report that says “tested successfully” is incomplete without those conditions and measured results.
Engineering check
For Design Verification Planning, maintain traceability from requirement to risk, design output, evidence, and approval. Record the configuration, acceptance criterion, test or analysis conditions, open actions, and residual risk. A method is not complete when the document is filled in; it is complete when the evidence supports the decision and affected controls are updated.
Planning detail
Break the requirement into a verification matrix with requirement identifier, design revision, method, apparatus, boundary condition, sample definition, measurement uncertainty, acceptance rule, and report owner. Analysis should identify assumptions and model correlation; inspection should identify datum and gauge; test should identify setup, conditioning, instrumentation, and anomaly disposition. Independent review of the plan should occur before execution so that a convenient test is not mistaken for a valid one.
Planning detail
Break the requirement into a verification matrix with requirement identifier, design revision, method, apparatus, boundary condition, sample definition, measurement uncertainty, acceptance rule, and report owner. Analysis should identify assumptions and model correlation; inspection should identify datum and gauge; test should identify setup, conditioning, instrumentation, and anomaly disposition. Independent review of the plan should occur before execution so that a convenient test is not mistaken for a valid one.