IgeraIndustria Quality Team · Updated 2026-07-07 · 9 min read
Part 7 of the ISO 9001:2015 Step by Step series · ← Article 5: Clause 7
ISO 9001 · Step-by-step series · Article 7 of 10
ISO 9001 Clause 9: Performance Evaluation and Internal Audits
Clause 9 of ISO 9001:2015 is the feedback engine of the quality management system. Without it, the QMS would run blind — producing and managing without any way of knowing whether it is improving or deteriorating. Clause 9 sets out how to measure system performance (9.1), how to audit it internally in a systematic way (9.2), and how top management periodically reviews whether the QMS remains suitable, adequate and effective (9.3). This guide explains exactly what you need to satisfy each sub-clause, with worked examples of KPIs, an audit programme and a management review agenda.
A large share of SMEs turn up to their management review without a formal agenda
According to IgeraIndustria's 2025 survey of manufacturing SMEs, many hold their management review without a written agenda or the minimum inputs Clause 9.3.2 requires. The result: minutes with no real content, unable to demonstrate that management made decisions based on system data.
9.1 Monitoring, measurement, analysis and evaluation: measure what matters
Clause 9.1 requires the organisation to determine what needs to be monitored and measured, the methods needed to ensure valid results, when monitoring and measurement will be performed, and when the results will be analysed and evaluated.
In practice this means having a defined set of KPIs that show whether the QMS is working well, measured on a defined frequency, with someone responsible for analysing the data and acting on it.
Minimum recommended KPIs for a certified manufacturing SME
- Customer satisfaction: average survey score (1–10 scale) and response rate. Recommended frequency: every six months or after each significant project or delivery.
- Internal nonconformities: total per month, per process or production line, and ratio of NCs to units produced. The trend matters more than the absolute figure.
- Customer nonconformities (complaints): number per month, warranty cost, average resolution time. A direct proxy for customer perception of quality.
- OTD — on-time delivery: percentage of orders delivered on the committed date. A core process KPI connecting production, logistics and sales.
- Achievement of quality objectives: monthly tracking of the objectives defined under Clause 6.2 — direct evidence that objectives are monitored, not just declared.
- Corrective action effectiveness: percentage of corrective actions closed on time and percentage with verified effectiveness — an indicator of system maturity.
The golden rule of indicators
ISO 9001 does not require a minimum number of KPIs or a specific format. What it requires is that the selected indicators are adequate to demonstrate QMS performance and effectiveness, and that results are actually analysed and used to make decisions. A system with 5 well-measured and well-analysed indicators is far stronger in front of an auditor than a dashboard with 50 indicators nobody reviews.
9.1.2 Customer satisfaction: beyond the survey
Clause 9.1.2 requires the organisation to monitor customer perceptions of the degree to which their needs and expectations have been fulfilled. The standard does not prescribe a method — it can be a survey, regular customer meetings, complaint analysis, market share data, or distributor reports.
The most common mistake is sending a survey once a year, getting a score, logging it in a spreadsheet and doing nothing further. What the standard requires — and what genuinely adds value — is analysing satisfaction data, identifying areas for improvement and taking concrete action on the lowest-scoring aspects.
9.1.3 Analysis and evaluation of data: turning data into decisions
Clause 9.1.3 requires the results of analysis to be used to evaluate: conformity of products and services, the degree of customer satisfaction, the performance and effectiveness of the QMS, whether planning has been implemented effectively, the effectiveness of actions taken to address risks and opportunities, the performance of external providers, and the need for improvements to the QMS.
In practice this means producing a monthly or quarterly data analysis pack — it can be as simple as a two-page report — that feeds both operational decisions and the management review.
9.2 Internal audit: the system's mirror
The internal audit is the tool that lets an organisation systematically verify whether its QMS is being effectively implemented and whether it meets ISO 9001 requirements. Unlike the certification (third-party) audit, internal audits are carried out by people from within the organisation, or by external auditors contracted to act as internal auditors on the organisation's behalf.
The requirements of Clause 9.2 are:
- Audit programme: plan, establish, implement and maintain an audit programme covering frequency, methods, responsibilities, planning requirements and reporting. The programme must take into account the importance of the processes concerned and the results of previous audits.
- Criteria and scope: every audit has criteria (what it is audited against — ISO 9001 requirements and the organisation's own QMS requirements) and a scope (which processes or areas are audited).
- Independence: auditors cannot audit their own work. A production manager may audit the purchasing process, but not the production process they themselves manage.
- Audit report: the results of audits must be reported to relevant management and retained as documented information.
- Action on findings: management of the area audited must take corrections and corrective actions without undue delay and verify their implementation.
Annual internal audit programme by process
| Process | Clauses audited | Frequency | Month planned | Auditor |
|---|---|---|---|---|
| Management (top management) | 4, 5, 6 | Annual | January | External auditor / QM |
| HR and training | 7.1, 7.2, 7.3 | Annual | February | Quality Manager |
| Infrastructure and equipment | 7.1.3, 7.1.5 | Annual | March | Production manager |
| Sales and order review | 8.2 | Annual | April | Quality Manager |
| Purchasing and external providers | 8.4 | Annual | May | Production manager |
| Production line 1 | 8.5, 8.6, 8.7 | Twice a year | June / December | External auditor |
| Quality control and inspection | 8.6, 8.7 | Twice a year | July / November | Quality Manager |
| Logistics and warehousing | 8.5.4, 8.5.5 | Annual | August | Production manager |
| Nonconformities and corrective actions | 10.2 | Annual | September | External auditor |
| Documentation and information control | 7.5 | Annual | October | Quality Manager |
| Monitoring and evaluation (KPIs) | 9.1 | Annual | November | Quality Manager |
| Overall system review (pre-audit) | 4-10 | Annual | December | External auditor |