Review and improve the usability of products and processes whilst their development and design are still in progress. This enables errors in development and the need for subsequent modifications to be avoided.
Systematically and empirically review design solutions for the human-system interfaces and their influence upon human behaviour. This reduces the need for physical modifications to machinery, and for extensive field studies.
Safely test potentially hazardous products, processes and safety concepts. This avoids actual hazards during the study of human-system interaction.
Identify cause-effect relationships following accidents on and involving products. This saves material, personnel, time and financial outlay associated with in-situ testing.