Organizations remain competitive in today"s rapidly changing environment by having continuous learning from employees. Personality is the relatively stable set of psychological characteristics that influences the way an individual interacts with his/her environment & how he/she feels/thinks/behaves. Personality consists of genetics and long-term learning history. Situational approach focused on work environment that might predict and explain o. b: characteristics of the organizational setting such as rewards and punishment influence people"s feelings, attitudes, and behaviour. Weak: not always clear how a person should behave (e. g. new volunteer community; personality has the most impact in weak situations) Strong: clear expectations for appropriate behaviour (e. g. military operations; personality tends to have less impact) Most important implication of the interactionist perspective is fit: putting the right person in the right job, group, or organization and exposing different employees to different management styles. The five-factor model or big-five provides a framework for classifying personality characteristics into five general dimensions.