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.

Duration% Complete X Units % Complete

6 replies [Last post]
Fri, 2005-11-18 15:01
Marcio Sampaio
User offline. Last seen 11 years 33 weeks ago. Offline
Joined: 7 Nov 2005
Posts: 658
Groups: Petro-Chem / Oil & Gas
Dear all,

A frined of mine has this doubt:

Can Duration%Complete (for Activity progress) be different of Units%Complete (for Resource progress on activity)??

In my opinion, it can be different. Activity progress can be proportionally different of Resource progress. By the way, it normally happens.

Any different opinion??

Regards,

Marcio Eduardo.
Rio de Janeiro - Brazil.
Top

Replies

Tue, 2005-12-13 17:53
#1
Vladimir Liberzon
User offline. Last seen 16 weeks 3 days ago. Offline
Joined: 5 Feb 2001
Posts: 2748
Groups: Accreditation Editors, Board of Advisors, Civil Engineering, GPCCAR Editors, Petro-Chem / Oil & Gas, Regional Representatives, Spider Project Team, TURNAROUND & SHUTDOWN (T/A & S/D)
Everything may have different percent complete:
duration, physical units, costs, resources.
So using the same percent complete for everything is not proper.
Top
Tue, 2005-12-13 15:42
#2
Ernesto Puyana
User offline. Last seen 7 years 34 weeks ago. Offline
Joined: 12 Jan 2001
Posts: 111
Groups: None
Andrew: hi

So you link percent complete to remaining duration? I’ve always found it a blessing to be able to determine them separately in Suretrak, unlike MS Project. Tracking progress becomes almast impossible with this link working; and it´s even worse with retained logic.
Top
Tue, 2005-12-13 02:21
#3
Andrew Tan
User offline. Last seen 11 years 11 weeks ago. Offline
Joined: 9 Oct 2004
Posts: 40
Groups: Petro-Chem / Oil & Gas
Hi,
Duration complete% is different from resources completed. True.

But it can be the same too.
Reason is that from scheduling view, if the work completed is only 10% which implies that resoures used is also 10%, and you configure software like P3 to take into account of this, the duration completed will be 10% too as it will automatically increases the required duration.
I find this useful to force the team to understand the CP and force a contigency plan out of them.
Top
Thu, 2005-12-01 19:30
#4
Ernesto Puyana
User offline. Last seen 7 years 34 weeks ago. Offline
Joined: 12 Jan 2001
Posts: 111
Groups: None
Percent complete should depend on physical achivements; what is not necesarily proportional to percent complete is remainig duration, which is the basis to determine end date and delay at completion.
Top
Mon, 2005-11-21 23:54
#5
Sen Moc
User offline. Last seen 18 years 15 weeks ago. Offline
Joined: 30 Aug 2005
Posts: 123
Groups: Petro-Chem / Oil & Gas
Hi Marcio,

You are right. Progress based on Duration (or Schedule) is different from progress based on Units (or Resources). And they are not proportional.

For example, let say that for this period Duration = 50 % Complete meaning you are already halfway on the schedule of your project. What if your plan is to achieve 50% progress on all activities but only achieved 25% in actual? --which is delay! or say, you may achieve 90% actual progress?

From above example, it is very clear that Duration % Complete (or Elapsed Time) is not related to Progress which depends on Performance.

Hope you have some enlightenment on this.

Regards,
Sen

Top
Fri, 2005-11-18 15:51
#6
Charleston-Joseph...
User offline. Last seen 2 years 38 weeks ago. Offline
Joined: 10 Jul 2005
Posts: 1347
Groups: None
Hi Marcio,


Always remember that the percent complete is base on the physical progress that is quantities in place / total quantities.

Cheers
Top