ECONOMICS
L10- ProjectManagement Tools_p2.pptx

# Earliest time an activity can start es maximum ef of

• 23

This preview shows pages 12–21. Sign up to view the full content.

earliest time an activity can start ES = maximum EF of immediate predecessors Earliest finish time (EF) earliest time an activity can finish EF= ES + t 12

This preview has intentionally blurred sections. Sign up to view the full version.

CPM Calculation Latest Start Time (LS) Latest time an activity can start without delaying critical path time LS= LF - t Latest finish time (LF) latest time an activity can be completed without delaying critical path time LF = minimum LS of immediate successors 13
CPM example 14 a, 6 a, 6 f, 15 f, 15 b, 8 b, 8 c, 5 c, 5 e, 9 e, 9 d, 13 d, 13 g, 17 g, 17 h, 9 h, 9 i, 6 i, 6 j, 12 j, 12 Activity Duration

This preview has intentionally blurred sections. Sign up to view the full version.

CPM example 15 a, 6 a, 6 f, 15 f, 15 b, 8 b, 8 c, 5 c, 5 e, 9 e, 9 d, 13 d, 13 g, 17 g, 17 h, 9 h, 9 i, 6 i, 6 j, 12 j, 12 0 6 0 8 0 5 EST EFT
CPM example 16 a, 6 a, 6 f, 15 f, 15 b, 8 b, 8 c, 5 c, 5 e, 9 e, 9 d, 13 d, 13 g, 17 g, 17 h, 9 h, 9 i, 6 i, 6 j, 12 j, 12 0 6 0 8 0 5 5 14 8 21 21 33 6 23 21 30 23 29 6 21 Project’s EF = 33 EST EFT max

This preview has intentionally blurred sections. Sign up to view the full version.

CPM example 17 a, 6 f, 15 b, 8 c, 5 e, 9 d, 13 g, 17 h, 9 i, 6 j, 12 0 6 0 8 0 5 5 14 8 21 21 33 6 23 21 30 23 29 6 21 21 33 27 33 24 33 Project’s EF = 33 LFT LST
CPM example 18 a, 6 f, 15 b, 8 c, 5 e, 9 d, 13 g, 17 h, 9 i, 6 j, 12 0 6 0 8 0 5 5 14 8 21 21 33 6 23 21 30 23 29 6 21 3 9 0 8 7 12 12 21 21 33 27 33 8 21 10 27 24 33 9 24 3 4 3 3 4 0 0 7 7 0 min

This preview has intentionally blurred sections. Sign up to view the full version.

CPM example 19 a, 6 f, 15 b, 8 c, 5 e, 9 d, 13 g, 17 h, 9 i, 6 j, 12 0 6 0 8 0 5 5 14 8 21 21 33 6 23 21 30 23 29 6 21 3 9 0 8 7 12 12 21 21 33 27 33 8 21 10 27 24 33 9 24 3 4 3 3 4 0 0 7 7 0
Slack = LS – ES = LF – EF Slack is the length of time an activity can be delayed without affecting the completi on date for the entire project. For example , slack for C = LS – ES = 8 – 5 = 3 weeks or LF – EF = 12 – 9 = 3 weeks .

This preview has intentionally blurred sections. Sign up to view the full version.

This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern