Definition
Responsibility spreads across teams, vendors, and incentives until no one can intervene. Accountability diffusion erodes design authority and leaves harm without a decisive owner. If no one can unilaterally halt the system or reverse the decision behind the harm, accountability is diffused.
Tests that show it is in place
- Escalation maps name a single owner with authority to halt or repair.
- Incident reviews show each handoff reaching a clear decision point.
Hypothetical example
- A support ticket bounces between a vendor and a hospital compliance team, and no one has authority to halt the rollout.
References
- Governance playbook · Guide
- Workload modeler · Tool