How do human resource planning and job analysis determine staffing needs?

"Two important, and somewhat parallel, aspects of the human resource management process are determining employee needs of the firm and the jobs to be filled. When Alcon Labs gained approval from the Food and Drug Administration for sales of a new contact lens disinfectant solution in its Opti-Free product line, it had to determine if additional sales representatives were needed and whether new sales positions with different knowledge and skill requirements should be established. Human resource planning at Alcon means having the right number of people, with the right training, in the right jobs, to meet its sales goals for the new product. Once the need for sales representatives is determined, human resource specialists assess the skills of the firm’s existing employees to see whether new people must be hired or current people can be trained. Human resource planners must know what skills different jobs require. Information about a specific job typically begins with a job analysis, which is a study of the tasks required to do a job well. This information is used to specify the essential skills, knowledge, and abilities required for the job. When Hubert Joly started as the CEO at Best Buy, the retailer was facing serious financial pressures. The threat of online competition from Amazon was real. Joly was also facing a staffing issue with a lot of turnover. He and his team instituted a plan to keep and promote staff as a core competency that would differentiate Best Buy from online retailers. Also, a key HR responsibility is that jobs are examined to make any changes in job duty and task responsibilities. The tasks and responsibilities of a job are listed in a job description. The skills, knowledge, and abilities a person must have to fill a job are spelled out in a job specification. These two documents help human resource planners find the right people for specific jobs."