Alternate to Constriants

N

Neil M

Okay.

Lets say you have activity A, B and C and you have a project where ABC occur
muliple times in different areas. However they cannot start at the same time.
Once A begins then B cannot start for 2 weeks and the same for C after B. The
only way that I have found to so this is to put a constraint on B and C.

There are two issues that result from this. First, whenever I put a
constraint on an item it changes the total days from like 100 days to 100.54
days or something like that. I don't want a decimal point and never use one
for any other activities preceding or following.
Second, if you put a constraint on A, it will not allow you to link B to it
as a predecessor. However, as stated B cannot start until 2 weeks after A and
the same applies to C. This takes the logic out of the schedule because if A
take longer than anticipated it will not push B or C out like it should.
I have tried splitting tasks but that does not seem to resolve the issuse.

Any help would be appreciated.
 
H

Hans

You need to use dependencies to accomplish what you want.

First of all, remove all constraints from the tasks.
- Select Task A
- Hold the Control button on your keyboard and select Task B. Both A and B should be selected now
- Click the 'Link Tasks' button
- Double click B to open the Task Information dialog
- Select the Tab 'Predecessors'
- Select the link to Task A and change the Type to 'Start-To-Start'
- Enter '2w' in the Lag field
- Click OK

You can do the same to link task B to C.

About the problem with the decimals: are you using non-standard calendars by any chance?

I hope this helps,
Hans



Projectopolis



Neil M wrote:

Okay. Lets say you have activity A, B and C and you have a project where ABC occur muliple times in different areas. However they cannot start at the same time. Once A begins then B cannot start for 2 weeks and the same for C after B. The only way that I have found to so this is to put a constraint on B and C. There are two issues that result from this. First, whenever I put a constraint on an item it changes the total days from like 100 days to 100.54 days or something like that. I don't want a decimal point and never use one for any other activities preceding or following. Second, if you put a constraint on A, it will not allow you to link B to it as a predecessor. However, as stated B cannot start until 2 weeks after A and the same applies to C. This takes the logic out of the schedule because if A take longer than anticipated it will not push B or C out like it should. I have tried splitting tasks but that does not seem to resolve the issuse. Any help would be appreciated.
 

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