This document discusses the evolution and definition of organizational behavior (OB) as a field of study. It defines OB as the study of individuals and groups within organizations, with a focus on individual and micro-level interactions. The document outlines three dimensions that define the conceptual domain of OB: (1) an independent variable-dependent variable framework for problem-solving, (2) an orientation toward facilitating change, and (3) a humanistic concern for self-development. The document also discusses how OB has developed constructs, models, facts, and technologies to study topics like motivation, leadership, and organizational structure. Finally, it concludes that traditional distinctions between OB and related fields are blurring, suggesting a movement toward an "enacted