How to incorporate operational interruptions ...

Member for

22 years 6 months

Billy ,



If you have to mangage your whole project at such a level, MS-Project is not your answer. Try P3 or a package that processes resources in the same way.



See my other posting for P3 http://www.planningplanet.com/forum/forum_post.asp?Cat=2&Top=6990



Other wise use a spreadsheet to interface your critical critical resources.



You just can’t do something like this with MS-Projects.



Regards,



Erik

Member for

21 years

A better version :



......would change to 7 days after scheduling. The following figure would show the situation. X means holiday and both resources will work 5 days to complete the activity.



1234567

oXXoooo Eng1

ooXXooo Eng2



o: task working or business day.



How can I get 8 days as a solution ?



12345678

oXX#oooo Eng1

o#XXoooo Eng2



#: Activity Y can not proceed without both Eng1 & Eng2 exist.

Member for

21 years

Thanks for Erik’s reply.



Let’s further consider an example.



Activity Y is resource dependent and needs resources Eng1

and Eng2. And this activity needs 5 days to complete the

activity. Eng1 would not be available on day 2 & 3 and Eng2 would not be available on day 3 & 4. As a result, the original duration of the activity would change to 7 days after scheduling. The following figure would show the situation. X means holiday and both resources will work 5 days to complete the activity.



1234567

-XX---- Eng1

--XX--- Eng2



How can I get 8 days as a solution ?



12345678

-XX#---- Eng1

-#XX---- Eng2



#: Activity Y can not proceed without both Eng1 & Eng2 exist.

Member for

22 years 6 months

Hi Billy,



For holidays/ Rain days use your calender.

If a breakdown is your whole plant, you can use your calender.



If an interuption is only specific to a activity/ group of activities, I do the following:



Create an activity describing the breakdown. Link it with a FF and a lag equal to the successor remaining duration.



This should clearly indicate the delays.



Cheers

Member for

21 years

Maybe I ask in another way.



Would anyone give me some ideas on "Operational interruptions can be modeled using resource calendars or probability distributions for productive hours/day, depending on weather patterns" ?





Best regards,



Billy