Fishbone Diagram Builder
Build a cause-and-effect (Ishikawa/Fishbone) diagram from a clearly defined business effect. Establish evidence, select useful cause categories, add candidate causes, challenge cause quality and prioritize the strongest hypotheses for deeper investigation.
Structure Cause Exploration Before You Decide What the Root Cause Is.
A Fishbone Diagram helps a business analysis team explore possible causes of one defined effect and organize them into meaningful categories. It is a hypothesis-generation technique, not proof of causation.
- Define one observable effect.
- Use evidence to guide cause generation.
- Select categories that fit the business problem.
- Write causes as specific, investigable statements.
- Prioritize and validate the strongest hypotheses after the diagram is built.
Fishbone Diagram Builder — Step by Step
Eight locked stages build the analysis from one defined effect through evidence, categories, candidate causes, diagram construction, quality review, prioritization and management action.
Define the Effect Precisely
Requirements-Related UAT Defects
Define the effect before building the cause-and-effect diagram.
Fishbone Cause Register
The cause register records each candidate cause by category and separates hypotheses from prioritized investigation targets.
Build Your Own Cause Set
Experiment Mode is isolated from the guided demonstration. Define an effect, choose a category and add your own candidate causes.
Quick Knowledge Check
Core Construction Rules
1. Effect
Place one clear, observable problem or effect at the head of the diagram.
2. Categories
Choose cause categories that broaden investigation and fit the business context.
3. Causes
Add specific, investigable candidate causes beneath the appropriate category.
4. Validate
Prioritize and validate the strongest hypotheses after the diagram is complete.