THE SHORT ANSWER
Assess performance through agreed outcomes, quality, relevant behavior, capability, consistency and context. Use proportionate metrics alongside work samples, feedback and conversation; identify support and development needs, then document clear commitments and consequences.
Performance is more than one number
| Dimension | Question |
|---|---|
| Outcome | What useful result was achieved? |
| Quality | Did the work meet the required standard? |
| Behavior | How were commitments, collaboration and boundaries handled? |
| Capability | What can the person do independently, and what is developing? |
| Consistency | Is this a pattern or an isolated event? |
| Context | Which resources, dependencies or changes affected the work? |
Use metrics with purpose and limits
Activity volume can reward busyness, rankings can conceal role differences and surveillance can distort behavior. Choose measures connected to outcomes, inspect distribution and quality, and document where managerial judgment enters.
Manage performance continuously
- Set a fair outcome and standard.
- Provide resources and authority.
- Observe relevant evidence.
- Discuss progress and context.
- Coach, develop or correct.
- Record commitments and review.
- Use formal processes where required.
Distinguish development from formal employment action
Regular coaching and fair performance conversation are management practices. Formal warnings, discipline, accommodations, promotion and termination require applicable policies and jurisdiction-specific advice.
Evidence & context: Advisory, Conciliation and Arbitration Service · Chartered Institute of Personnel and Development
Sources & further reading
- Performance Management: Could Do Better?
Chartered Institute of Personnel and Development. Rapid evidence assessments on goal setting and appraisal, including task-complexity, feedback and fairness caveats. It does not make a single appraisal method suitable for every role or employment context.
- Performance Management: Reviews and Appraisals
Advisory, Conciliation and Arbitration Service. UK guidance updated in June 2026 covering objectives, regular feedback, coaching, support and records. It is a practical reference, not globally applicable employment-law advice.
- Performance Feedback: An Evidence Review
Chartered Institute of Personnel and Development. A 2022 evidence review on conditions that make workplace feedback effective or harmful. It synthesizes varied studies rather than validating one rigid feedback script.
Examples and exercises are illustrative unless attributed to a source. No independent expert review is claimed.
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