What process allows for changes to be accommodated at lower cost?

Change tolerance is essential in software engineering because it refers to the ability of a system or process to effectively accommodate changes with minimal disruption and cost. In software development, requirements often evolve due to various factors such as user feedback, market shifts, or technological advancements.

When a system is designed with change tolerance in mind, it allows developers to modify the software more easily and integrate new features without extensive revisions or overhauls. This approach emphasizes flexibility and adaptability within the development process, thereby lowering the costs associated with implementing changes.

By incorporating change tolerance into the software development lifecycle—such as through modular design, robust architecture, and effective communication—it becomes easier to manage evolving requirements. Thus, the correct answer highlights a critical aspect of software development that can significantly impact project efficiency and budget management.