Glossary

Key Performance Indicator

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What is a key performance indicator?

A key performance indicator, or KPI, is a measurable signal that shows whether a team, process, or business outcome is moving in the right direction. It is not just any metric: it is selected because it represents progress toward an important goal. ¹

A support team may track tickets opened, tickets closed, response time, reopened issues, customer satisfaction, backlog age, and escalation volume. Only a few should become KPIs. A KPI tells the team whether work is succeeding, not just whether activity is happening.

A KPI is a measurable signal selected because it shows progress toward an important goal, not just activity.

KPI vs metric: what is the difference?

All KPIs are metrics, but not all metrics are KPIs. A metric is any measurement. A KPI has strategic or operational weight and should help someone decide whether to continue, investigate, change priorities, or improve a process. ²

Measurement type	What it tells you	Example	Risk
Activity metric	How much work happened	Articles published	Can reward output without quality
Quality metric	Whether work met the standard	Reopened tickets	Can lag behind the problem
Outcome KPI	Whether the goal is achieved	Time to resolution	Can be distorted by a poor goal
Health indicator	Whether the system is stable	Backlog age	Can be ignored until urgent

Metrics measure many things, but KPIs carry strategic or operational weight and should help teams make decisions.

How to choose a useful KPI

Start with the decision the KPI needs to support. If no one can name the decision, the number is probably dashboard decoration. Test whether the team can act on the result, and define what counts, what is excluded, when it updates, and who owns it.

A useful KPI starts with a real decision, stays controllable, and has clear boundary conditions.

Examples of KPIs in team operations

A support team may use first response time when speed is part of its customer promise, but time to resolution or reopened-ticket rate may be better when quick replies hide poor resolution quality. An onboarding team can track time to first successful workflow. A documentation team can track repeat support questions covered by an up-to-date article.

Good team KPIs connect daily work to outcomes, such as resolution quality, workflow readiness, or reduced repeated explanation.

Common KPI mistakes

Avoid choosing too many KPIs or rewarding the wrong behavior. Measuring support only on close rate can encourage quick closures without solving the issue. KPIs should change as the goal changes. ³

KPI selection prompt

KPI selection promptmarkdown

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## KPI selection prompt

**Glossary term:** Key Performance Indicator
**Source:** Trails Glossary — trails.so/glossary/key-performance-indicator

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### 01. Define useful KPIs

"Help define KPIs for [team or process].

Goal: [specific outcome]
Current problem: [what is not working]
Available data: [metrics we can already measure]
Decisions this KPI should support: [weekly planning, escalation, quality review, staffing, process improvement]
Constraints: [data quality, ownership, timing, customer impact]

Return:
- 3 candidate KPIs.
- What each KPI measures.
- What behavior each KPI might accidentally encourage.
- A recommended primary KPI.
- The exact definition and owner for that KPI."

Documentation takeaway

Document what each KPI means, how it is calculated, where data comes from, who owns it, and what action happens when it moves. ⁴

Related terms

Sources

1
National Institute of Standards and Technology. Hierarchical KPI structure. tsapps.nist.gov/publication/get_pdf.cfm?pub_id=919754.
2
Harvard Business School. The Balanced Scorecard. www.hbs.edu/faculty/Pages/item.aspx?num=9161.
3
Donald Campbell. Assessing the impact of planned social change. ideas.repec.org/a/eee/epplan/v2y1979i1p67-90.html.
4
ISO. ISO 22400-2 KPI standard. www.iso.org/standard/54497.html.