Start and Finish FLOAT

Hi Ali

Both yields same result but the way of computing is different

Ali,
One is calculated by Forward Pass and the other is calculated using Backward Pass.

Both are calculated using Forward and Backward passes but still may be different.

So what is the use of the option in Scheduling dialog box that allows you to choose betwee start float, finish float, or the smallest between them?

Start Float shows the delay of sctivity start that does not delay project finish if everything will be done as expected.
Finish float shows the delay of activity finish that does not delay project finish if everything will be done as expected.

Actually it is more interesting to understand the delay of activity finish that will not delay project finish if current activity will be done slower than expected (we call it super float).

I think that start float is most useful because you decide when to start each activity. When start is known finish is defined.