Strategic Human Resource Management (SHRM) is an approach to managing human resources that aligns HR practices and policies with the strategic objectives of an organization. In other words, it is the process of linking the HR function with the strategic goals and objectives of the organization.
Organizational behavior (OB) is the study of how individuals, groups, and structures interact within an organization. It is a multidisciplinary field that draws on concepts and theories from psychology, sociology, anthropology, economics, and management to understand and explain human behavior in the workplace.
Change management is the systematic approach which deals with the transition or transformation of different organisational objectives, processes, core values, or technologies.