Critical Path
In the Open Standard
Jiayin YaoMember for 19 years 6 months
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Hi,
In P5, the critical path was defined as the total float less than or equal to 0.
When filter the critical path, P5 does not pick up all the activities which total float equals 0.
But when I define critical path as total float equals or less than 1. P5 pick up all the activities with 0 float. I think it is something to do with the hours and times. Can anyone tell me how the P5 works?
And also can anyone please explain the longest path, when should I use it?
Thank you very much.
In P5, the critical path was defined as the total float less than or equal to 0.
When filter the critical path, P5 does not pick up all the activities which total float equals 0.
But when I define critical path as total float equals or less than 1. P5 pick up all the activities with 0 float. I think it is something to do with the hours and times. Can anyone tell me how the P5 works?
And also can anyone please explain the longest path, when should I use it?
Thank you very much.
3 replies
Oldest first- 0Dieter Wambach ·Hi Jiayin
The reason is a very simple one:
Primavera does calculate with decimals. If you’ll change your preferences that decimals will be displayed, you’ll realize that those activities you are missing have a float of 0. which is greater than zero.
Edit --> User Preferences --> Time units --> ’Show decimals
Regards
Dieter - 0Ronald Winter ·Longest Path is a process, similar to but different from CPM and total float. Longest path is a better measurement of the critical path than using total float, as tracking total float ‘fails’ in instances where multiple activity calendars, LOE, interruptible activities, resource leveling, constraints, and out-of-sequence activities are used. I have an article published on the web about this and enhancements to longest path at http://ronwinterconsulting.com/published.htm. Good luck!
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