This document discusses factors that influence changes in curriculum. It identifies several definitions of curriculum provided by education experts. It then discusses different types and sources of curriculum change, including political, economic, technological, diversity, learning theories, and environmental factors. It also outlines McNeil's five types of curriculum change: substitution, alteration, perturbations, restructuring, and value orientation changes. Influential individuals and employer/industry viewpoints are also identified as sources that can drive curriculum changes.