MGMT6058 Lecture Notes - Lecture 5: Critical Path Method
Document Summary
When we have a range of estimates for an activity, such as optimistic, most likely and. Pessimistic , we frequently use the pert duration formula. Note however, we typically use durations rounded to the nearest day, rather than decimals of days from our pert formula. Even short durations such as 3 hours, we round up to a day. Oneofthereasonsforthis,istoavoidschedulinga3 hour activity a with a 4 hour successor activity b on the sameday. Itcouldstartintheafternoon forcing activity b to start on the following day. Most common type of sequencing shown on the line joining the modes. The mechanical inspection cannot happen until wiring, plumbing, and hvac installation are complete. The lag could be a wait for a supervisor to drop by and approve the wiring. Start to finish lag (not finish to start) Rarely used type of relationship successor"s finish dependent on predecessor"s start.
