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CROSSWALK

IEC 62304 §5.6.5

WHAT CARRIES OVER

Test plan review as a quality practice — peer review of test procedures before execution is standard in established SDLC processes.

WHAT'S NEW

In the requirement text, "correctness" is struck and "adequacy" is inserted ("The MANUFACTURER shall EVALUATE the integration test procedures for adequacy."). [Class B, C]

AUDIT FOCUS

Documented adequacy evaluation record dated before test execution, with coverage analysis against 5.6.4 content areas and an explicit adequacy conclusion.

Maps to

IEC 62304: §5.6.5 Evaluate software integration test procedures

ISO 13485: §7.3.6 Design and development verification

Pre-QMSR Part 820: §820.30(f) Design verification.

Requirement text

The manufacturer shall evaluate the integration test procedures for adequacy. [Class B, C]

IEC 62304:2006+AMD1:2015 — ISO catalogue →

Why this clause exists

Test procedure adequacy evaluation is a meta-verification step: it asks whether the tests themselves are good enough to detect the failures they are designed to find. Without clause 5.6.5, a manufacturer could execute a complete set of integration tests that pass while the test procedures are so weak that they would not detect actual integration failures. For safety-critical software, where integration testing is the mechanism for verifying that risk controls function correctly in the combined software item, inadequate test procedures represent a systematic gap — not a random quality problem. The adequacy evaluation forces explicit documentation of why the test procedures are sufficient before relying on their results as compliance evidence.

What changed

Amendment 1 changed the clause title by striking "Verify" and inserting "EVALUATE software", so that it reads "EVALUATE software integration test procedures". In the body, "correctness" is struck and "adequacy" is inserted: "The MANUFACTURER shall EVALUATE the integration test procedures for adequacy." The same correctness-to-adequacy change is marked in clause 5.5.2.

Common gaps (what we see in audits)

  • Test procedure adequacy evaluation not conducted as a distinct step — Integration tests are written and executed without a separate evaluation of procedure adequacy. The test plan approval (if any) confirms process compliance but does not evaluate whether test procedures are adequate to detect relevant integration failures.
  • Adequacy evaluation performed by the test author without independent review — The developer who writes the integration test procedures also evaluates their adequacy, creating a conflict where the same person assesses the quality of their own work. For safety-critical systems, independent evaluation provides a meaningful adequacy check.

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