#Change_Management_Theory explains how people, teams, and organizations move from familiar ways of working to new ways of thinking, behaving, and operating. It is one of the most important areas in management studies because every organization faces change. New technology, new laws, new customer expectations, new competition, global pressure, and social transformation all require organizations to adapt. However, change is not only a technical process. It is also a human, cult

#Disruptive_innovation_theory explains how small, simple, affordable, or initially low-performing innovations can later challenge powerful companies, institutions, and systems. The theory is widely associated with Clayton M. Christensen, who argued that disruption often begins outside the main market. New entrants may first serve customers who are ignored, underserved, or unable to afford existing products. Over time, these new entrants improve their products, build trust, an