The Information about jobs is obtained through a process called job analysis. Job analysis has many uses, the major use being in the job evaluation.

Job Analysis is the process of determining
Specific roles, duties and responsibilities of posts or positions.
The working conditions and physical demands of posts or positions.
The contacts and relationships within positions.
The overall scope and accountabilities of positions.

The Job Evaluation is necessary for
* Determining the value of positions in relation to other

positions within the organization.
* Determining or establishing internal relativity by assessing if a position is equal to another, stronger or weaker.
* Getting reasonable increases in compensation

Job analysis helps in analyzing the resources and establishing the strategies to accomplish the business goals and strategic objectives. It forms the basis for demand-supply analysis, recruitments, compensation management, and training need assessment and performance appraisal.