QUESTION $4$

a$).$ Given the following information for a project, draw the AON $($Activity$-$On$-$Node$)$ project network. $(10$ marks$)$

Activity

Immediate Processor

Activity Time $($days$)$

A

$-$

$6$

B

$-$

$8$

C

A$,$ B

$5$

D

B

$4$

E

C

$7$

F

C$,$ D

$3$

G

D

$6$

H

E$,$ F$,$ G

$5$

b$).$ Figure to accompany Table $4$

Table $4$

Activity

Activity Time

Earliest Start

Earliest Finish

Latest Start

Latest Finish

Slack

A

$2$

$0$

$0$

$2$

$0$

B

$1$

$2$

$3$

$3$

$4$

$1$

C

$3$

$2$

$5$

$2$

$5$

$0$

D

$7$

$3$

$10$

$4$

$11$

E

$3$

$5$

$8$

$11$

$3$

F

$5$

$11$

$5$

$11$

$0$

G

$4$

$11$

$15$

$11$

$15$

$0$

Using the information shown in Table $4,$ what is the slack time for activity D$?(2$ marks$)$

Using the information shown in Table $4,$ what is the earliest finish time for activity A$?(2$ marks$)$

Using the information shown in Table $4,$ what is the latest start time for activity E$?(2$ marks$)$

Using the information shown in Table $4,$ what is the activity time for activity F$?(2$ marks$)$

Refer to the Figure to accompany Table $4.$ Which one of the following is the critical path? $(2$ marks$)$

Using the information shown in Table $4,$ what is the project duration? $(2$ marks$)$