Human Factors

Human Factors takes a systems approach to human performance. Rather than solely focus on training and behavioural approaches to human performance issues, we try to optimise the task, tools, equipment, procedures and environment in which people operate to work with them rather than against them. 

As a company, Human Reliability Associates specialise in cognition, task analysis, sociotechnical system design, and risk management. 

We like the structure of having different Human Factors topics like design, communication, procedures, competence and organisational issues. These all contribute to learning proactively before something goes wrong, and reactively after something has gone wrong – both concerned with optimising human performance in context. 

Human Factors Offerings

Different sectors have their own approaches and concepts for Human Factors. While these services may be framed in different ways and terms, they are closely interlinked by Human Factors topics.

Managing Human Performance

Managing human performance includes how we learn from events, deviations, normal work and manage risks. It is a key area for ensuring good and safe operations in the workplace.


The Human Factors COMAH Delivery Guide was developed by the HSE following a need to establish a framework for inspecting Human Factors (HF) at COMAH establishments. Scroll down for an overview and summary.

Hierarchical Task Analysis

Hierarchical Task Analysis (HTA) is a method for analysing tasks using a hierarchical structure. 

T4 Procedures​

The documents that accompany work set expectations, detail steps and support people to complete tasks. Non-compliance can often be a symptom with deeper causes.


Safety Critical Task Analysis (SCTA) is a proactive approach to identifying and managing Human Factors risks. It is required by sites that fall under the COMAH regulations in the UK.


Standard Operating Procedures (SOP) are a key part of managing the quality and safety of critical tasks. For the operators, they should provide information for conducting the task successfully.

Get in touch

Speak to the Human Reliability team today about managing risk and improving procedures in your organisation.