Job Demands Analysis (JDA)

A JDA provides a detailed description of the demands specific to a role and is based on Ergonomic principles. The assessment is typically undertaken in the workplace with the individual and/or colleagues being observed by the practitioner undertaking the role. The essential and non-essential job tasks, as well as frequent functions, are assessed and described in detail.

The JDA is typically used for the following reasons:


The following individuals may participate in the JDA process:

1. The employee returning to the role being assessed

2. The supervisor and/or line manager of the position being assessed

3. An additional worker in that area who may perform the tasks if the employee is restricted. They may also verify information the individual employee is providing in relation to the demands of the role

4. Engineers: especially important in production plants or assembly areas

5. Health and Safety

6. Occupational Health

7. Human Resources


Typically, the JDA will be undertaken over a 2-4 hour period.


A report is provided with specific information relating to the demands of the employee’s role and where appropriate provide recommendations for reasonable adjustments.

Workers using a forklift to pick boxes