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                                              Critical Drivers help please

                                              12 replies [Last post]
                                              Thomas Nicholson
                                              User offline. Last seen 3 weeks 23 hours ago. Offline
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                                              Morning all, 

                                              I have a plan in which I have an activity being pushed out and I wondered if there is an easy way to isolate it's critical driving predecessors going back to the initial activity causing the move?  Manually it's taking ages. 

                                              Thanks in advance, 

                                              Thom

                                              Replies

                                              Zoltan Palffy
                                              User offline. Last seen 22 hours 21 min ago. Offline
                                              Joined: 13 Jul 2009
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                                              I have developed  3 day training program and I teach in house Project managers, Project Engineers, superintendendts and foremen.

                                              Its a 400 page manual with screen shots where you can basically teach yourself withe manual. I have taught over 300 people.

                                              Thomas Nicholson
                                              User offline. Last seen 3 weeks 23 hours ago. Offline
                                              Joined: 4 Oct 2006
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                                              Zoltan as always amazing.  Have you thought about running training courses?

                                              thank you once again for digging me out of a hole. :)

                                              Raymund de Laza
                                              User offline. Last seen 2 weeks 1 day ago. Offline
                                              Joined: 23 Nov 2009
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                                              Hi Thomas,

                                              As suggested by Zoltan, Use the Filter Critical and Longest Path together but make sure to select "All selected filters" above the filter pane.

                                              Then View from the the Gantt Chart to trace the Driving Activity along the Longest path.

                                              Hope this will help.

                                              Thomas Nicholson
                                              User offline. Last seen 3 weeks 23 hours ago. Offline
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                                              Hi Raymond, 

                                              I thought of that but it's so small I can't actually read it.  I can't seem to find a way of zooming the view to make it readable with the amount of predecessors some activities have and I can't seem to be able to print it to read elsewhere. 

                                              Is there a way you know of being able to do either of these?

                                              Thanks, 

                                              Zoltan Palffy
                                              User offline. Last seen 22 hours 21 min ago. Offline
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                                              chose both filters critical AND LONGEST path 

                                              the other option is to create a activity code and name it mypath and give it a code value of CP

                                              now filter for the last activity 

                                              go to the predcessor tab and if the driving and critical boxes are not there then in the predcessor window right click and select customize predcessor columns 

                                              expand the General category and bring both the DRIVING and CRITICAL categories to the right 

                                              no look for the predcessor activity that has BOTH the driving and the critical boxes checked

                                              now click on that predcessor and at the bottom of the window select GOTO

                                              keep doing this until you get back to the data date. 

                                              now select all of the activities 

                                              then rigth click and select assign and select activity codes and select the newly added code of mypath and give them the code value of CP

                                              now you can filter for activity code where mypath = CP and see the driving activities. 

                                               

                                              Raymund de Laza
                                              User offline. Last seen 2 weeks 1 day ago. Offline
                                              Joined: 23 Nov 2009
                                              Posts: 744

                                              I suggest to use the Trace Logic Chart and change the Options to see numbers of Predecessors and Filter to Critical. 

                                              Thomas Nicholson
                                              User offline. Last seen 3 weeks 23 hours ago. Offline
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                                              Hi Zoltan, Unfortunately I don’t have driving as an option for a filter. Thanks as always for the advice though.
                                              Thomas Nicholson
                                              User offline. Last seen 3 weeks 23 hours ago. Offline
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                                              Hi Tom, They may do something but I can’t see it showing me any difference to export the info in a useful fashion for my team. Thanks for the advice though.
                                              Rafael Davila
                                              User offline. Last seen 12 hours 28 min ago. Offline
                                              Joined: 1 Mar 2004
                                              Posts: 4864

                                              Be reminded that Longest Path miserably fails at resource leveled schedules.  As you can see in the following sample schedule most activities are not linked but their use/consumption of resources will delay other activities.

                                              ROD-001  not resource leveled schedule

                                              ROD-002 resource leveled schedule

                                              RD-003 resource dependencies shown RD-005

                                              Note while resource dependencies are shown for renewable resources, dependencies for materials[consumable resources] are not. 

                                              When this happens Longest Path breaks and will not tell you the reason for activity delay, a very convenient field available in Spider Project.  I wonder how P6 users answer this question when the schedule is resource leveled.

                                               

                                               


                                               

                                              Tom Boyle
                                              User offline. Last seen 12 hours 37 min ago. Offline
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                                              (duplicate)

                                              Tom Boyle
                                              User offline. Last seen 12 hours 37 min ago. Offline
                                              Joined: 28 Nov 2006
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                                              Schedule calculation options, Advanced, Calculate multiple float paths, free float, ending with your selected activity, no limit on number of paths to calculate.  Then group by Float Path and sort by Float Path Order.  done.

                                              Zoltan Palffy
                                              User offline. Last seen 22 hours 21 min ago. Offline
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                                              filter for driving AND critical 

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