Dr Peta Chirgwin
Dr Peta Chirgwin
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Human Authority-Centred Work Design (HACWD)

 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. 

THE METHODOLOGY

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.

Problem: Technology is outpacing how work is designed

  • Decisions are shifting without visibility 
  • Humans are accountable without authority 
  • Cognitive load is increasing in operational roles 
  • AI is introduced without governance frameworks 
  • Psychosocial, Sociotechnical and operational risks are rising

This is not a technology problem. It is a work design and authority problem. 

A structured approach to intelligent systems governance

01 — INVESTIGATE

01 — INVESTIGATE

01 — INVESTIGATE

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. 


02 — DESIGN

01 — INVESTIGATE

01 — INVESTIGATE

Build your intelligent work and decision authority blueprint.

Uses HACWD to redesign work, authority, and governance from the ground up.  

 

03 — ENABLE

01 — INVESTIGATE

03 — ENABLE

Equip leaders through the Executive Fellowship.

Builds leadership capability to govern and lead inside HACWD-designed systems.


04 — ASSURE

01 — INVESTIGATE

03 — ENABLE

Ongoing governance, monitoring, and system assurance.

Maintains HACWD integrity over time through ongoing monitoring and improvement. 


Governance

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. 


Define human authority before systems define it for you.

 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.

Start with clarity. Lead the shift.

Most organisations start with technology. We start with work
Start with an AuditBook a Briefing

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