Guild of Project Controls: Compendium | Roles | Assessment | Certifications | Membership

Tips on using this forum..

(1) Explain your problem, don't simply post "This isn't working". What were you doing when you faced the problem? What have you tried to resolve - did you look for a solution using "Search" ? Has it happened just once or several times?

(2) It's also good to get feedback when a solution is found, return to the original post to explain how it was resolved so that more people can also use the results.

Actual Duration in P6

3 replies [Last post]
Mon, 2008-05-19 06:42
Suresh Sankaranku...
User offline. Last seen 4 years 39 weeks ago. Offline
Joined: 30 Jul 2006
Posts: 77
Groups: Petro-Chem / Oil & Gas
Hi
I imported one project from MSP to p6 the actual duration shows in p6 is different from MSP. Can any one tell me how p6 calculate the actual duration ? In MSP the actual duration = Original Duration * % Complete . And in MSP the remaining duration = Original Duration - Actual duration . Could any one explain how its in P6 ?

Suresh
Top

Replies

Mon, 2008-05-19 12:26
#1
Dieter Wambach
User offline. Last seen 7 years 3 weeks ago. Offline
Joined: 15 Jan 2007
Posts: 1350
Groups: Petro-Chem / Oil & Gas, TILOS
Suresh
Primavera calculates different. This is from the P6 "Hint Help":
Duration % Complete: The percent complete of the activity duration. Computed as (Original Duration - Remaining Duration)/Original Duration * 100. Always in the range 0 to 100. The Original Duration is taken from the current plan, not from the baseline.
The actual duration is the difference between "Actual Start" and the Data-Date. The data-date is the current status of a project: earlier is past, later or equal is planned for the whole project. MSP here is a little chaotic.
Regards
Dieter
Top
Mon, 2008-05-19 08:54
#2
Suresh Sankaranku...
User offline. Last seen 4 years 39 weeks ago. Offline
Joined: 30 Jul 2006
Posts: 77
Groups: Petro-Chem / Oil & Gas
Dieter,
Its not cleared actually.

The question is in MSP the Acutal Duration calculates
Actual Duration = Original Duration * % Complete

But how will P6 calculate the actual duration ?
Top
Mon, 2008-05-19 06:58
#3
Dieter Wambach
User offline. Last seen 7 years 3 weeks ago. Offline
Joined: 15 Jan 2007
Posts: 1350
Groups: Petro-Chem / Oil & Gas, TILOS
Suresh
To your first question: Main difference is the data date in Primavera (all versions): This is "today", but activity’s calendar will be regarded. So duration %-complete is calculated from Start to data-date. MSP doesn’t know a common status date: one activity might have status April 1st, another Mai 5, another ... If you import this can lead to differences - or, you had some discipline using MSP.
Second question: For costs and units you decide per project how it’s calculated Tab calculations. For the durations it depends on duration type and the percent-complete type and the data-date of course.
Dieter
Top