The term "evolution" refers to the gradual development or change of something over time. In the context of U.S. governmental bureaucracy, it refers to the process by which the structure, functions, and practices of bureaucracy have transformed and adapted over the years.
Related terms
Reform: Refers to making changes or improvements in an organization or system.
Modernization: The process of updating or adapting something to meet contemporary needs and standards.
Innovation: Introducing new ideas, methods, or technologies to bring about positive changes in an organization or system.