When progress measurement is difficult due to the lack of intermediate milestones and challenging-to-define effort levels, Weighted or Equivalent Units is an effective method.
Key Points:
Weighted or Equivalent Units:
This method involves assigning a percentage or weight to different parts of a task based on their relative effort or importance. It allows for more granular and realistic progress tracking when clear milestones are absent.
Other Methods:
Start/Finish: Suitable for tasks with clear start and end points but may oversimplify progress measurement.
Incremental Milestones: Effective when intermediate steps are well-defined.
Cost Ratio: Focuses on the cost expended versus the planned cost, which might not reflect actual physical progress.
Conclusion: The correct answer is B. Weighted or equivalent units because this method is specifically designed to handle complex tasks where other progress measurement methods might fall short.