This helps to assess qualifications, fit, and current interest in the position. Selection varies immensely. Recruiters will employ the most advantageous way to seek qualified candidates possible. The formal interview is critical during this process. The employer will use this time to see if you are the best fit for the position.
Fit goes beyond qualifications.
Know the position and what they are looking for in a candidate. See the interviewing section of the job search handbook for more information on interviewing. Hiring varies according to the structure of the company. The process may range from an informal offer at an interview to a very structured hiring process including testing, contracts, human resource orientation, credentials, etc. Human Resources typically facilitates the hiring process but the hiring manager usually makes the final choice.