Icologiq Knowledge · Method
Pareto Analysis
A prioritization method that ranks problem or cause categories by frequency, cost or other impact so teams can focus investigation and improvement effort where it matters most.
Also known as:
Pareto Chart, Pareto Diagram, Pareto Analysis Chart
At a glance
Type
Method
Topic
CAPA & Incidents
Applies to
Cross-industry
Current version
Status
Last reviewed
September 29, 2026
Definition
Pareto Analysis is a data-based prioritization method commonly presented as a Pareto chart, with categories ordered from the largest contribution to the smallest and often combined with a cumulative percentage line. It helps teams see which types of problems, defects, incidents or suspected causes account for the greatest share of an observed effect. Pareto Analysis identifies where to focus attention; it does not by itself prove the underlying root cause.
Why it matters
Quality and QHSE teams often manage more incidents, findings, complaints and improvement opportunities than they can investigate with equal depth. Pareto Analysis helps them use actual occurrence, cost or impact data to identify where investigation and corrective-action effort is likely to create the greatest value. It is especially useful for trend reviews, management reporting and selecting recurring issue categories for deeper RCA.
A systematic approach for identifying the underlying causes of a problem or event instead of addressing only its immediate symptoms.
Root Cause Analysis
Method
· CAPA & Incidents
A structured process for addressing causes of actual or potential problems through corrective or preventive measures and verifying that actions are effective.
CAPA
Process
· CAPA & Incidents
The structured process for reporting, assessing, investigating, following up and learning from incidents and related events.
Incident Management
Process
· Incident Management
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