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# TOPIC: Question on Network Diagram

## Question on Network Diagram 12 years 8 months ago #2535

 Mahesh Kumar S Topic Author Offline Fresh Boarder Posts: 1 Thank you received: 0 I have recently purchased the PMP® Exam Formula Study Guide, which is helping me to identify gaps. My question is on Network Diagram, while many claims the first activity early start can neither be 0 or 1 & the corresponding results will be the same on either methods. Iam following to adapt 0 days for easy calculation.Which is the correct method & easy to understand? I would like to mention the one of the question & answer provided in your kit. Question : The activity “Ship Container” in your network diagram has an early start of day 17, a late start of day 22 and a late finish of day 37. What is the activity duration? A.) 15 days B.) 16 days - Correct Answer C.) 59 days D.) 14 days Based on the Formula guide the formula says Activity Duration=EF - ES + 1 or LF - LS + 1..when translated AD= 37-22+1 = 16. Since iam following "0" to be the ES of my activity my answer would be 15. This may be the most silly question, but kindly clarify. Your e-mail address will never be displayed on the site. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.

## Re:Question on Network Diagram 12 years 6 months ago #2632

 Essam Mohammed Offline Fresh Boarder Posts: 1 Thank you received: 0 Please can anybody answer the question because I am also confusing. Rita follows 0 start and you follow 1 start. What is the correct for the exam? Thank you Your e-mail address will never be displayed on the site. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.

## Re:Question on Network Diagram 12 years 6 months ago #2634

 Cornelius Fichtner Offline Administrator President, OSP International LLC Posts: 1979 Karma: 119 Thank you received: 605 Please read the explanation about 0 / 1 start date in our knowledge base at the following URL: www.pmhelpdesk.com/entries/20346821-why-...ting-es-ef-ls-and-lf Until Next Time, Cornelius Fichtner, PMP, CSM President, OSP International LLC Your e-mail address will never be displayed on the site. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.

## Re:Question on Network Diagram 12 years 5 months ago #2642

 Sagar Mainkar Offline Fresh Boarder Posts: 9 Thank you received: 0 I have same confusion and infact our confusion are correct as illustrated by your example we get different answers by different methods which means one of the method is incorrect. -Sagar Your e-mail address will never be displayed on the site. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.

## Re:Question on Network Diagram 12 years 5 months ago #2649

 Sunil Kumar Offline Fresh Boarder Posts: 1 Thank you received: 0 I would say no formula is needed for that .. say if you start your activity at day 1 and finish on day 1 .. duration will be 1 day not 0 day. So you have to add a day if you use subtraction method. I would say what PM Prep Case suggested is right. Your e-mail address will never be displayed on the site. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.
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