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Can’t make feature work “Allow Performance Interruptions of no longer then”

3 replies [Last post]
Evgeny Z.
User offline. Last seen 7 weeks 5 days ago. Offline
Joined: 13 Jan 2008
Posts: 405
Groups: None

Dear all,

I seem not to be able to make the feature “Allow Performance Interruptions of no longer then” to work.

In my test schedule Activity 1 has a calendar with exception on 25 Jan, which with weekend brings interruption of 64 hours., but I just can’t make Spider reschedule activity 1 it to the next week.

The schedule can be downloaded from here (Interrupt.001.sprj)

https://docs.google.com/folder/d/0B1FBt_G3gCVqS1pmZTJqcWI0Qjg/edit

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Regards.

Evgeny

Replies

Rafael Davila
User offline. Last seen 3 hours 40 min ago. Offline
Joined: 1 Mar 2004
Posts: 4779

If you do not want Activity 1  to be scheduled on weeks with calendar exceptions other than week-ends use milestones.

http://www.mediafire.com/?kasulthyj2f1lql

If you change Activity 6 duration to 0 and then increase it you will notice Activity 1 will be scheduled to start on Jan 14 or on a latter week but never on the week of Jan21.

This is a procedure I believe that can be applied with most software, the start on Monday have been discussed previously on PP. The second milestone follows similar logic, I guess you cannot model this particular case with a single milestone.

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Evgeny Z.
User offline. Last seen 7 weeks 5 days ago. Offline
Joined: 13 Jan 2008
Posts: 405
Groups: None

Vladimir,

Thanks. With 7 days it works . So Spider counts interruptions against the Activity calendar without exceptions (should have found out it myself).  This is cool, that this feature can also be triggered by resource calendar.

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Regards.

Evgeny

Evgeny,

you shall:

1. Add created exception to the calendar that has vacations on January 25.

2. Assign this calendar to activity that shall not be interrupted when preformance begin.

3. In activitiy properties replace permitted 70 hours of interruption by 7 hours.

Then schedule. You forgot 1, 3rd I explain below.

When interruptions are restricted it did not refer to regular weekends, etc. Spider looks to calendar exceptions and interruptions caused by resource requirements on higher priority activities. Your interruption is only one work day or 8 hours. If you will restrict the duration of permitted interruptions by 7 hours, and activity will be delayed and will start after exception period end.

It may be used for example for delaying the start of complex work after resource vacations.

Best Regards,

Vladimir