Computer Systems Limited is currently deploying a

nationwide CRM software system across all its retail

outlets. Upon examination, the company realized

it can reduce project duration by deploying additional

resources. However, this involves additional

costs. Table $7\mathrm{.}5$ contains information about cost and

schedule.

Analyzing Cost$$Time Trade$-$offs

Activity Immediate Predecessor$($s$)$ Normal Time $($wks$)$ Crash Time $($wks$)$ Normal Cost $($$$)$ Crash Cost $($$$)$

A $415,0008,000$

B $538,00010,000$

C A $114,0004,000$

D B $636,00012,000$

E B$,$ C $764,0007,000$

F D $764,0007,000$

TABLE $7\mathrm{.}7|$ DATA FOR THE BILLING PROCESS PROJECT

Activity Predecessor $($s$)$

Normal

Time

$($months$)$

Crash

Time

$($months$)$

Cos to Crash

$(/$month$)$

A None $54300$

B None $108350$

C A $53300$

D A $4$

E B $1$

F C$,$ D $1$

G D$,$ E $21500$

H F $21500$

I G $1$