Job analysis is defined as detailed study of job in order to understand more about the job,

Two key stakeholders in the job analysis process are:

Managers: Managers play a key role in detailing skills and knowledge required for the role, Job description detailing kind of activities need to be performed as part of this job and performance parameters required for the job.

Employee: Employee plays an important role in telling kind of physical and mental challenges involved in the project, inputs to improve employee job satisfaction and opportunities and learnings that exist with these jobs.

The information provided by the stakeholders can affect job analysis in below ways:

It helps determine most effective methods to perform a job.

It helps identify trainings required for the job.

It helps increase employee job satisfaction.

It helps identify performance measures required to perform the job.

It helps identify duties and responsibilities required for the job.

My question is How might a job incumbent with performance problems, or in a disagreement with the manager about the job duties play a role in this process? Or should they play a role?