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What is an Engineering Audit Like? An ISO 13485 Medical Device Engineering QMS Case Study

Audits force engineers to turn undocumented practices into traceable, risk-aware processes, showing how to build a compliant QMS for ISO 13485 and why that matters for product safety.

The audit was a catalyst that forced the engineering team to convert ad-hoc practices into a documented, risk-aware Quality Management System. By mapping every requirement of ISO 13485 onto concrete engineering artifacts, the piece shows why that rigor matters for patient safety and regulatory compliance.

A surprising focus was on evaluating external libraries, the so-called SOUPs. Instead of a simple "npm install," the team had to track provenance, maintenance status, and risk exposure for each package, assign responsibility, and define a re-evaluation cadence. This level of scrutiny turned a routine dependency into a documented safety gate.

Traceability was another pillar. The author described pulling BitBucket build numbers into the Unique Device Identifier (UDI) scheme, pairing them with Jira tickets, and automating UDI-PI updates. The result is a chain that lets auditors see exactly which code change landed in which version of the product, eliminating reliance on human note-taking.

Preparation tips boiled down to three actions: assemble a volunteer documentation taskforce, build a spreadsheet that cross-references each ISO 13485 topic with live examples, and ensure senior engineers keep their calendars clear for audit questions. With the right people and processes in place, the audit became a showcase of engineering discipline rather than a disruptive event.

Source: annajmcdougall.medium.com
#engineering management#quality assurance#regulatory compliance#ISO 13485#medical devices#process documentation#risk management

Problems this helps solve:

Process inefficienciesKnowledge sharingCross-functional alignment

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