回帖：Activity Steps offer several advantages.
One, you can break down a complex activity into a series of, well, steps that better describe the scope of work. The activity name does not need to go into a great deal of detail because the steps offer additional explanation.
Two, it becomes much easier to update a complex activity with steps because rather than trying to come up with a percent complete for the overall task, each step is updated individually, thereby generating an overall percent complete. Have you ever decided that an activity was 37.25% complete? Me neither, but Activity Steps can do that.
Third, Activity Steps do not require logic so it is a great way to track work that cannot easily be sequenced. Let us say there are several air handling units in the building and you have been told that only one will be installed at a time due to the available manpower. But no one knows the order in which the AHUs will be installed. No problem. We can list the AHUs as Activity Steps; the work cannot proceed out-of-sequence since there is no predefined sequence.