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Activity Relations

7 replies [Last post]
Fri, 2009-03-13 06:03
Francis Aborot
User offline. Last seen 14 years 49 weeks ago. Offline
Joined: 13 Feb 2009
Posts: 67
Groups: Civil Engineering
Activity Relations as we all know are listed below

1. FS-Finish-to-Start
2. SS-Start-to-Start
3. FF-Finish-to-Finish
4. SF-Start-to-Finish--> which im not using in my schedule.

Why dont we develop relations like

Act A

---> SS Lag= after 50% of Act A

Act B

Because the start of most activities will not depend on the start of predecessor activity but depend if that predecessor activity completed 50% already.

Is that logical?

Thanx and more power,
Francis
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Replies

Fri, 2009-03-13 10:14
#1
Francis Aborot
User offline. Last seen 14 years 49 weeks ago. Offline
Joined: 13 Feb 2009
Posts: 67
Groups: Civil Engineering
Hi Vladimir,

I will search about your recommendation...

Thnx and more power,
Francis
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Fri, 2009-03-13 10:04
#2
Vladimir Liberzon
User offline. Last seen 17 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)
Hi Francis,
yes, Spider Project supports volume and time lags.
Volume Lag can be set as the number of physical units (m3, tons, etc.) or percent of the previous activity volume (quantity) of work.
You can download Spider Project Demo from http://www.spiderproject.ru/demo_e.php
It has 40 activities per project restriction and no other constraints.
If you will have questions don’t hesitate to ask them, I will be glad to answer. Especially if you will not find in Spider Project some feature that you need - I will explain where to look.
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Fri, 2009-03-13 07:53
#3
Francis Aborot
User offline. Last seen 14 years 49 weeks ago. Offline
Joined: 13 Feb 2009
Posts: 67
Groups: Civil Engineering
Hi Trevor,

To read all notes in this forum is loosing my time...Some I have read...Dont worry, im also reading them one at a time....


Thnx and more power,
Francis
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Fri, 2009-03-13 07:42
#4
Trevor Rabey
User offline. Last seen 1 year 22 weeks ago. Offline
Joined: 29 Nov 2005
Posts: 530
Groups: None
Francis,
Having groovy features in the software is one thing.
Using them in CPM modeling is quite another.
See Mike’s abominations topic.
You have been a member of PPP since February. Welcome, but you are asking questions that have been flogged to death here many times. How about read all of that first?
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Fri, 2009-03-13 07:35
#5
Francis Aborot
User offline. Last seen 14 years 49 weeks ago. Offline
Joined: 13 Feb 2009
Posts: 67
Groups: Civil Engineering
Hi Simon,

Interesting... You have the program?

Email me at
francis_planning@yahoo.com

Thanx in advance and more power,
Francis
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Fri, 2009-03-13 07:19
#6
Simon Martin
User offline. Last seen 8 years 3 days ago. Offline
Joined: 29 Jan 2008
Posts: 13
Groups: None
Asta Powerproject also has the facility to had percent type lags (although I haven’t used them myself).
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Fri, 2009-03-13 07:07
#7
Stephen Devaux
User offline. Last seen 18 weeks 3 days ago. Offline
Joined: 23 Mar 2005
Posts: 667
Groups: Content Moderators
Francis,

I don’t mean to speak for Vladimir, but I was impressed recently to discover (in another thread) that apparently Spider Project has the functionality to make lags based either in time or in work completed. (That’s if I understood clearly!) I agree that this would be a useful feature.

I’m sure that Vladimir will be along to explain when he has a minute.
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