Units ffab finish to finish lead activity b cannot

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: units FFAB (finish-to-finish) lead: activity B cannot finish until at least FF time units after the completion of activity A FSAB (finish-to-start) lead: activity B cannot start until at least FS time units after the completion of activity A (note that PERT/CPM assumes FSAB = 0) SFAB (start-to-finish) lead: there must be at least SF time units between the start of activity A and the completion of activity B J. G. Carlsson, U of MN ISyE Lecture 7: PERT & CPM October 3/17, 2013 33 / 38 Lead-lag relationships in PDM (Taken from [1] ) [1] A.R. Ravindran. Operations Research and Management Science Handbook. Operations Research Series. Taylor & Francis, 2007. J. G. Carlsson, U of MN ISyE Lecture 7: PERT & CPM October 3/17, 2013 34 / 38 Converting PDM to PERT/CPM We can use PERT/CPM to model the relationships from PDM by partitioning the activities into multiple components J. G. Carlsson, U of MN ISyE Lecture 7: PERT & CPM October 3/17, 2013 35 / 38 Example SSAB FFBC FSCD SFDE START A (4) J. G. Carlsson, U of MN ISyE B (5) =1 =2 =2 = 19 C (6) Lecture 7: PERT & CPM D (7) E (8) END October 3/17, 2013 36 / 38 Example SSAB FFBC FSCD SFDE START A (4) =1 =2 =2 = B (5) C (6) 19 D (7) E (8) END B 2 (4) B 1 (1) START C1 (6) A 1 (1) C2 (2) D 1 (7) D 2 (4) E (8) END A 2 (3) J. G. Carlsson, U of MN ISyE Lecture 7: PERT & CPM October 3/17, 2013 37 / 38 References I [1] A.R. Ravindran. Operations Research and Management Science Handbook. Operations Research Series. Taylor & Francis, 2007. J. G. Carlsson, U of MN ISyE Lecture 7: PERT & CPM October 3/17, 2013 38 / 38...
View Full Document

This document was uploaded on 02/23/2014 for the course MANAGMENT 2201 at University of Michigan.

Ask a homework question - tutors are online