For the purpose of the selection process the followings are necessary:

Job Description
A general statement of the job duties and responsibilities.

Qualifications
Abilities, knowledge, and skills necessary to perform the described duties and responsibilities.

	Ability--an observable behavior or a behavior that results in an observable product (e.g., willingness to work overtime, do research and creative work, supervise others).
	Knowledge--a body of information that can be applied directly to the performance of a function (e.g., expertise in purchasing, a physical science, engineering drawings).
	Skill--a learned psychomotor skill (e.g., typing, driving a truck, drafting, operating precision machinery).

Requirements
Conditions that must be met before an individual can perform the duties and responsibilities of the position (e.g., having a license required by law, having a work permit).