Scribd
Upload
151 views10 pages

Critical Path Analysis Guide

This document contains information about activities, their predecessors, and duration times to draw a network diagram and identify the critical path for two examples. For the first example, it lists 9 activities A-I with their predecessors and durations. It provides the network diagram, calculations for earliest and latest start/finish times, and identifies the critical path. For the second example, it lists 5 activities a-e with their predecessors and durations, provides the network diagram, calculations, identifies the critical path, and shows the slack times.

Uploaded by

Charmaine Magdangal
Copyright
© Attribution Non-Commercial (BY-NC)
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PPTX, PDF, TXT or read online on Scribd
151 views10 pages

Critical Path Analysis Guide

This document contains information about activities, their predecessors, and duration times to draw a network diagram and identify the critical path for two examples. For the first example, it lists 9 activities A-I with their predecessors and durations. It provides the network diagram, calculations for earliest and latest start/finish times, and identifies the critical path. For the second example, it lists 5 activities a-e with their predecessors and durations, provides the network diagram, calculations, identifies the critical path, and shows the slack times.

Uploaded by

Charmaine Magdangal
Copyright
© Attribution Non-Commercial (BY-NC)
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PPTX, PDF, TXT or read online on Scribd
You are on page 1/ 10

Example 1

Activity A B C D E F G H I Immediate predecessors A A A E D,F B,C G,H Completion Time (week) 5 6 4 3 1 4 14 12 2 Total 51

Draw the network diagram and find the critical path

Answer for Example 1

D[5,8] 3

ES & EF

Answer for Example 1

D[5,8] 3[7,10]

4 1 6

LS & LF

Answer for Example 1


Activity Earliest start (ES) Latest start (LS) Earliest finish (EF) Latest Slack finish (LF) (LS-ES) Critical path

A B C D E F G H I

0 0 5 5 5 6 10 9 24

0 6 8 7 5 6 10 12 24

5 6 9 8 6 10 24 21 26

5 12 12 10 6 10 24 24 26

0 6 3 2 0 0 0 3 0

Yes

Yes Yes Yes


Yes

Activity Schedule

Example 2

Draw the network diagram and find the critical path

Answer for Example 2


f, 15 6 a, 6 0 6 b, 8 6 21 h, 9

g, 17
23

21 30 i, 6
23 29 j, 12 21 33

8
c, 5

d, 13 8 e, 9 5 14 21

Projects EF = 33

ES & EF

Answer for Example 2


6 a, 6 0 4 6 10 b, 8 21 h, 9 21 30 i, 6 23 27 29 33 j, 12 21 21 33 33

18 24

g, 17 6 23
10 27

24 33

0
0

8
8 c, 5

d, 13 8 8 e, 9 5 12 14 21 21 21

0 7

5 12

LS & LF

Answer for Example 2


f, 15 3 a, 6 3 0 3 6 9 b, 8 0 0 0 8 8 c, 5 7 0 d, 13 8 8 e, 9 7 5 12 14 21 21 21 0 4 6 23 4 10 27 6 9 21 24 h, 9

g, 17

3 i, 6
23 27 29 33

21 30 24 33

j, 12 21 21 33 33

0
7

5
12

Slack time

Answer for Example 2

a, 6

g, 17 i, 6

h, 9

b, 8 d, 13

j, 12

c, 5 e, 9

Critical Path

Practice Problem

Activity

Description

Duration

1-2
1-3 3-4

Social work team to live in village


Social research team to do survey Analyse results of survey

5w
12w 5w

2-4
3-5

Establish mother & child health program


Establish rural credit programme

14w
15w

4-5

Carry out immunization of under fives 4w

Draw the network diagram and find the critical path

You might also like