Q. Show Methods or techniques of requirements?

Methods or techniques of requirements: the following are the most commonly used to recruitment people:

Promotions and transfers: this is a method of filling vacancies from within through the transfers and promotions. A transfer is an internal movement within the same grade, from one job to another. It may lead to changes in the duties and responsibilities, working conditions, etc. but not necessarily salary. Promotion, on the other hand, involves movement of employee from a lower level of position to a higher level position accompanied by (usually) changes in duties, responsibilities, status and value.
Job posting: Job posting is another way of hiring people from within. In this method, the organization publicized the job openings on the bulletin boards, electronic media and similar outlets.

Employee referrals: Employee referral means using personal contacts to locate job opportunities. It is a recommendation from a current employee regarding a job applicant. The logic behind the employee referral is that "it takes on to know one".