ENSURE COMPLETE ASSIGNMENT OF DUTIES
Job analysis can also help discover unsigned duties for example, in analyzing the job of your company's production manager, you may find she reports herself as being responsible for two dozen or so duties in closing planning weekly production schedules and purchasing raw materials
missing however, is any reference to managing raw material or finished goods inventories. on further investigation you find the nine of the other manufacturing people is responsible for inventory management either. Your job analysis (because not just on what employees report as their duties,but on what you know these duties should be) has identified a duty to be assigned. Missing duties like this are often uncovered though job analysis. Job analysis thus plays a role in remedying the sort of problems that would arise if, for example, no one were assigned to manage inventories.
as you can see,job analysis plays a central role in HR management.this fact is acknowledged by the u.s. Federal agencies uniform guidelines on employee selection which stipulate that job analysis is a crucial step in validating all major personnel activities employers must be able to show that their screening tools and appraisals are actually related to performance on the job in question.Doing this,of course requires knowing what the job entail
Which in turn requires a competent job analysis.