Mohd. Najib wrote

Introduce you, Frank Parson

Frank Parsons is known as the Father of Vocational Guidance.
Parsons developed a framework to help individuals decide on a career. This framework contained a three part formulation.

First, a clear understanding of yourself, aptitudes, abilities, interests, resources, limitations, and other qualities
Second, a knowledge of the requirements and conditions of success, advantages and disadvantages, compensations, opportunities, and prospects in different lines of work
Third, true reasoning of the relations of these two groups of facts (Parsons, 1909, p. 5, as cited in Zunker, 2002)