Some causes drive others. The Interrelationship Diagraph maps the links and shows which cause pulls the most strings. Watch the short video, then work with the toolkit PDF: it explains the method, shows a worked example and gives you a blank template to fill in.
Tool video
The short tool video will appear here.
Interrelationship Diagraph in short
- Place the causes. 5 to 10 causes from your Fishbone or Affinity DiagramA tool that organizes a large number of ideas or facts into related groups based on natural connections. Click term for full definition, in a circle.
- Compare each pair. For every pair ask: does one cause or influence the other?
- Draw the arrows. From cause to effect. Only one direction per pair, the stronger one.
- Count in and out. Write the number of outgoing and incoming arrows on each cause.
- Name the drivers. Most outgoing arrows: driver causes. Most incoming: key outcomes.
Key points
- Arrows from cause to effect.
- One direction per pair.
- Most outgoing = driver cause.
- Drivers go to A4 for proof.