PLANNING TECHNIQUES
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174 PROJECT PLANNING TECHNIQUES
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5.5. Refer to Figures 5.5 a and 5.5 b, and assume the following:
· Assume that tasks 3.2.1.1, 3.2.3.1, and 3.2.4.1 each require 1 person for 2 weeks.
· Assume that task 3.2.2.1 will require 2 persons for 4 weeks.
· Assume that tasks 3.2.1.2 and 3.2.1.3, 3.2.3.2 and 3.2.3.3, and 3.2.4.2 and
3.2.4.3 and will each require 1 person for 1 week.
· Assume that tasks 3.2.2.2 and 3.2.3.3 will require 2 persons for 2 weeks.
· Assume that task 3.2.5 will require 2 persons for 2 weeks.
a. Prepare a schedule network for the 13 tasks, showing sequential and concurrent activities and milestones.
b. P repare a list of the 13 tasks. List the EST, LST, EFT, and LFT for each task.
c. L ist the tasks on the critical path using the ESTs and LSTs.
d. U sing the critical path, list the time needed to complete the 13 tasks.
e. P repare a staffi ng profi le for the 13 tasks using the EST for each task.
5.6. Using the template for work packages in Table 5.3 a, design work packages for 5 of the 12 tasks in Table 5.4 and Figure 5.6 . You will have to “ invent ” some of the missing information; be creative but not ridiculous.
TABLE 5.3A Template for work packages
| Task identifi er: | « WBS number and name» |
| Task description: | « brief description» |
| Estimated duration: Resources needed: | « days or weeks » |
| Personnel: | « numbers of people needed to complete this task » |
| Skills: | « personnel skills needed to complete this task » |
| Tools: | « software and hardware needed» |
| Travel: | « to where? for how long?» |
| Other: | « other resources needed to complete this task » |
| Predecessor tasks: | «t o be completed before this task can begin» |
| Successor tasks: | « to start after this task is completed » |
| Work products: | « outputs of this task » |
| Baselines: | « work products to be placed under version control » |
| Risk factors: | « potential problems for this task » |
| Acceptance criteria: | «f or the work products of this task » |
TABLE 5.4 A task list
| Activity number | Description | Predecessors | Duration | Staff
number |
| 2.1 | Receive approval to proceed | — | — | — |
| 3.1 | Analyze requirements | 2.1 | 1 | 2 |
| 3.2 | Design | |||
| 3.2.1 | Redesign existing components | 3.1 | 6 | 4 |
| 3.2.2 | Design new components | 3.1 | 3 | 1 |
| 3.2.3 | Design interfaces | 3.2.2 | 1 | 2 |
| 3.3 | Implement code | |||
| 3.3.1 | Implement new code | 3.2.2 | 6 | 2 |
| 3.3.2 | Modify existing code | 3.2.1, 3.2.3 | 5 | 1 |
| 3.4 | Finish implementation | |||
| 3.4.1 | Develop integration plan | 3.2.2 | 2 | 2 |
| 3.4.2 | Finish unit testing | 3.3.1, 3.3.2 | 2 | 2 |
| 3.4.3 | Update documentation | 3.3.1, 3.3.2 | 2 | 3 |
| 3.5 | Integrate and test | |||
| 3.5.1 | Develop integration tests | 3.4.1 | 1 | 3 |
| 3.5.2 | Perform integration tests | 3.4.2, 3.4.3, 3.5.1 | 1 | 2 |
| 3.6 | Perform acceptance tests | 3.5.2 | 1 | 1 |
m.n = tasks; (x) = activity duration
=
milestones;
1
2
3
4
6
7
8
9
10
5
3.1
3.2.2
3.2.3
3.3.1
3.4.1
3.5.1
3.4.3
3.4.2
3.5.2
3.6
(1)
(3)
(6)
3.3.2
(5)
(2)
(0)
(2)
(1)
(1)
(1)
(1)
(6)
(2)
3.2.1
weeks
16
2.1
n
critical path
FIGURE 5.6 A critical – path activity network
T ABLE 5.5 Milestones for the schedule network in Figure 5.6
| Event | Description |
| 1 | Project initiation |
| 2 | Requirements analysis completed |
| 3 | Design of new components completed |
| 4 | Existing components redesigned; interfaces to new components designed |
| 5 | Integration plan completed |
| 6 | New code implemented; existing code modifi ed |
| 7 | Documentation updated |
| 8 | Unit testing completed; documentation updated; integration tests ready |
| 9 | Inte |
| 10 | Acceptance tests completed |
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