DAC - David Arku Consultancy

JustRhythm by DAC

Fair decisions. Just outcomes. Learning, not blame.

Free of charge — no subscription, no registration, no catch.
No personal data required. Even your name is optional.
Incident details are processed entirely on your device. Nothing is shared.

See it in action

The incident: A site engineer on a busy construction project signs off a concrete pour using the previous week's mix specification. The updated spec — requiring a higher-grade mix for a load-bearing section — was emailed to the team but buried in a thread of 40 messages. The pour passes initial checks, but a later audit flags the discrepancy. No structural failure occurred, but the rework cost is significant.

What Just Culture reveals: On the surface, this looks like carelessness. But the tool asks: would a competent colleague, given the same information overload and time pressure, have done the same? The answer is likely yes — the engineer didn't know the spec had changed. No intent, no impairment, no knowing deviation.

Classification Human Error

System response: Investigate why critical specification changes are communicated via email threads instead of flagged in the project management system. The next engineer will make the same miss unless the system changes.

Powered by the 5% fund of the DAC-IOSH Level 3 Certificate

Learn more about the DAC-IOSH L3C

Case Details

All fields below are optional. You can skip straight to the assessment if you prefer. Any details you do provide will appear in your downloadable PDF report, giving you a complete, self-contained record of the incident and its Just Culture classification.

Case Details (optional)

Incident Context (optional)

Step 1 of 4

Tell me more about this

Rationale

Decision Pathway

Response Guidance

System Factors to Investigate

    Five Investigator Questions

      Full Decision Tree

      JustRhythm by DAC is a structured decision-support tool, not a substitute for legal advice, HR due process, clinical or medical assessment, or formal disciplinary investigation. Local law, internal policy, union obligations, and professional regulatory requirements always take precedence. Review conclusions with qualified HR, legal, and clinical professionals before formal action. Classifications produced by this tool are analytical starting points, not binding determinations. DAC Consult Ltd accepts no liability for decisions made on the basis of this tool's output.

      Glossary