How do requirements flow into AGL testing?
Turn each requirement that must be proved into a test with a method and an acceptance criterion, then evaluate, record and close every result.
The testing requirement flow turns the requirement list into a test plan that states the test, the method, the instruments and the acceptance criterion. After preparation and safe isolation, the tests are carried out, evaluated against the criteria and recorded before the item is closed.
A test without a criterion set in advance proves nothing that can be defended. Use calibrated instruments, keep signed records, and update the compliance matrix only when the evidence is on file.
- List what must be proved. Pick requirements that need measurement or operation.
- Write the test plan. Method, instruments, stage and acceptance criterion for each.
- Prepare safely. Calibrated instruments, isolation, permits and access.
- Test and evaluate. Compare each result with its criterion.
- Record and close. Sign the records, handle any retest, update the matrix.
A written procedure, calibrated instruments and criteria set beforehand, so results are repeatable and defensible.
No procedure or criterion, so results cannot be repeated, compared or relied on.
Frequently Asked Questions
Q1How do test requirements come from the design?
Each requirement that must be proved by measurement or operation becomes a test item. The governing documents and specification supply the method and the acceptance criterion, so the test plan states what to test, how, and what result counts as a pass.
Q2What is an acceptance criterion?
It is the result a test must achieve for the requirement to be met, set before the test and traced to its source, such as a specification clause or a standard. Setting it in advance stops results being judged after the fact.
Q3Why must test instruments be calibrated?
A result is only as reliable as the instrument that produced it. Using calibrated instruments, with current calibration records, lets the result be trusted and defended later.
Q4What if a test fails?
Stop, record the result and investigate the cause. Fix the fault, then retest and record that too. Do not change the acceptance criterion to fit the result unless the person with authority formally agrees, and record any such change.
Q5How do factory, site and commissioning tests differ?
Factory tests show the product meets its specification before it leaves the manufacturer. Site tests show the installed equipment and circuits are sound. Commissioning tests show the whole system works together. Each draws on the same requirement list.
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