Flexibility is the ability of a process or system to adapt to changes in customer demand, product mix, or production volume. A flexible process can respond quickly and efficiently to these changes, minimizing disruptions and costs. One of the key measurements of flexibility is machine changeover time, which is the time required to switch a machine or equipment from producing one type of product to another. A shorter machine changeover time means a higher level of flexibility, as the process can accommodate different products or orders without wasting time or resources. This aligns with CPIM's focus on plan, manage, and execute detailed schedules and manage quality, continuous improvement, and technology. References: The concepts are covered in detail in Module 5: Detailed Scheduling and Planning (1 and Module 6: Quality, Continuous Improvement, and Technology (2. You can also find more information about flexibility and machine changeover time from these sources: 3, 4, and 5.