Lalit Kumar JainProject Management Consultant & Trainer| Visiting Professor, Poornima University, Jaipur, Rajasthan(India)Dubai, Dubai, United Arab Emirates
On page 190 of PMBOK6, the description of "Start to Finish" is incorrect.
This concept can be explained step wise as follows:
a) For a project scheduler, the Predecessor means "main" activity and "Successor" means subordinate activity. In other words, Predecessor is the "DECIDING" activity even if it is happening later in time.
b) In the example given in PMBOK6, page 190, the new accounts payable system is the "Predecessor" and the old accounts payable system is the successor. The start of new system will "DECIDE" or "DICTATE" the shutting down of old system. So the second sentence in incorrect.
c) There can be a lead or lag in this relationship also. Let us imagine a cricket match has been scheduled from 25th of Oct 8 AM and the watering of ground should stop 48 hours before that, which means on 23rd Oct morning. However, due to any reason if the cricket match gets postponed to 30th Oct, then the watering of ground should stop on 28th Oct.
d) However, as per the wording in PMBOK6, the watering will continue till 25th Oct (or 30th Oct) when the players are entering the stadium. Only when players have started playing, the watering of the ground should be stopped as per the PMBOK6 wording.
e) I want to add a diagram but there is no option to attach a file. Saving Changes...