This book will determines the scientific method used to identify competencies and create BARS (Behaviorally anchored rating scales) for each competency will help to describe jobs effectively in the organization. The new job description will help in hiring, individual development, and talent management. The new job description will also help in identifying consistent trainings for promotion because we now have a list of common skills and parameters to up skill. The project to map competencies is intensive work which needs constant monitoring and update. The challenge is in identifying crucial competencies for all roles and making the BARS specific to each competency. The BARS are the parameters by which the management can assess the performance and skills of staff and give them proper training, mentoring, and coaching to help them move on to the higher level. In this regard, it is crucial to remain updated on competency mapping subject. This book forms the foundation of all the major tasks in Human Resources and contributes in recruiting, managing, developing, promotion, and career planning of staff in an organization.