What controls reduce software defect risk?

author: Verified Expert

• Related article: cia-software-defect-root-cause-controls-map
• Related question-bank placeholders: ["automated-testing-regression-risk", "ci-gate-sdlc-control"]
• Question: What controls reduce software defect risk?
• Question detail:
• If internal audit is reviewing a software team with recurring defects, what controls should we expect management to have?
• Answer:
• Useful controls include approved requirements, clear acceptance criteria, peer code review, automated regression testing, QA review, release approval, CI/CD gate evidence, defect triage, root-cause analysis, rollback planning, and recurring-defect monitoring.
• The control set should fit the system's risk. A customer-facing billing platform needs stronger evidence than a low-risk internal note-taking tool. For higher-risk systems, internal audit should expect traceability from requirement to code review to testing to release approval.
• The strongest evidence is not a general statement that "developers test their work." It is a record showing what changed, what risk it created, which tests ran, who reviewed it, what exceptions remained, and who approved release.