Human Authority-Centred Work Design (HACWD) is the methodology behind every Chameleon Mettle Group engagement. Built from PhD research in mining automation. The framework that connects HAI, CHSAL, and your four-stage assurance program.
Human Authority-Centered Work Design
The framework that makes human authority a designable property of intelligent systems, not an assumption.
HACWD was developed through research into how humans actually work alongside intelligent, autonomous systems in high-consequence environments. Not how they are supposed to work. How they do.
In mining, energy, and defence, AI and automation are deployed at scale. But work; the design of roles, decisions, authority, and accountability, is rarely redesigned to match. The result is a class of latent risk that technical audits do not find: humans who are accountable for decisions they cannot see, operating systems they cannot always override, in organisations that have no structured way to measure any of it.
HACWD addresses that gap. It provides the framework for designing work, decision authority, governance, and capability in organisations where intelligent systems are part of how work gets done.
The methodology operates across four dimensions:
Decision authority and governance (DC) — who owns decisions, how automated outputs are treated, whether override pathways are documented and tested, and whether accountability is clear when systems fail.
Human factors and cognitive sustainability (CS) — the workload, skill currency, and role design conditions that determine whether operators can exercise effective judgment over time — not just nominally, but in practice.
Psychosocial safety and work experience (PS) — the agency, organisational safety climate, eudaimonic work quality, and monitoring conditions that determine whether people can genuinely act on their authority without fear or suppression.
Work design and technology integration (WD) — whether tasks, roles, interfaces, and competency architecture have been deliberately designed to preserve human authority, or whether automation was layered over unchanged work.
This is not a technology problem. It is a work design and authority problem.
Understand your current AI, automation, and decision environment with an AI clarity audit.
Applying HACWD to diagnose where human authority is at risk in your current operation.
Build your intelligent work and decision authority blueprint.
Uses HACWD to redesign work, authority, and governance from the ground up.
Equip leaders through the Executive Fellowship.
Builds leadership capability to govern and lead inside HACWD-designed systems.
Ongoing governance, monitoring, and system assurance.
Maintains HACWD integrity over time through ongoing monitoring and improvement.
HUMAN AUTHORITY INDEX (HAI)
The Human Authority Index (HAI) is the measurement instrument that makes HACWD scored and auditable; producing a defensible, evidence-based picture of human authority across three dimensions: Decision Clarity, Cognitive Sustainability, and Psychosocial Safety.
Developed by Dr Peta Chirgwin, HAI is a governance standard and scoring index for assessing human decision authority in AI-influenced systems. Where ISO standards govern process quality and ESG indexes measure environmental and social performance, HAI measures the one thing neither currently addresses: how much control humans actually retain when machines influence decisions.

Most organisations discover the authority gap after something has gone wrong — an incident, a regulatory question, a board challenge they weren't prepared for. HACWD is designed to find it before that moment arrives. Whether you're looking to improve your operations, streamline your processes, or improve sociotechnical safety, we're here to help. Explore our website to learn more about our services and how we can help your business succeed.
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