The activities, their durations and precedences for designing, writing and installing a bespoke computer database are shown in Table 19.4. Draw a network diagram (Activity-on-node) for the project and calculate the fastest time in which the operation might be completed.
Activity
Duration (weeks)
Activities that must be completed before it can start
1 Contract negotiation
1
-
2 Discussions with main users
2
1
3 Review of current documentation
5
1
4 Review of current systems
6
2
5 Systems analysis (a)
4
3,4
6 Systems analysis (B)
7
5
7 Programming
12
5
8 Testing (prelim)
2
7
9 Existing system review report
1
3,4
10 System proposal report
2
5,9
11 Documentation preparation
19
5,8
12 Implementation
7
7,11
13 System test
3
12
14 Debugging
4
12
15 Manual preparation
5
11
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