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CPA Setting up an ICT system. A consultancy company has divided the work into a number of activities. The table below shows the details. ActivityImmediate.

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Presentation on theme: "CPA Setting up an ICT system. A consultancy company has divided the work into a number of activities. The table below shows the details. ActivityImmediate."— Presentation transcript:

1 CPA Setting up an ICT system. A consultancy company has divided the work into a number of activities. The table below shows the details. ActivityImmediate predecessor Duration (weeks) A : Decide on new system - 1 B : Prepare ICT control room A 2 C : Buy hardware (including delivery) A 5 D : Buy software (including delivery) A 2 E : Train ICT staff B, C, D 2 F : Install cabling C 2 G : Install hardware E, F 1 H : Install software G 1 I : Prepare pupil/ staff data A 5 J : Install data H, I 1 K : Train teaching staff H 2 L : Test system J, K 1

2 CPA ActivityImmediate predecessor Duration (weeks) A : Decide on new system - 1 B : Prepare ICT control room A 2 C : Buy hardware (including delivery) A 5 D : Buy software (including delivery) A 2 E : Train ICT staff B, C, D 2 F : Install cabling C 2 G : Install hardware E, F 1 H : Install software G 1 I : Prepare pupil/ staff data A 5 J : Install data H, I 1 K : Train teaching staff H 2 L : Test system J, K 1 First construct an activity network for the project. You may need to be flexible with arrow connections between boxes but the arrows connections must be clear. K 2 A 1 G 1 J 1 H 1 L 1 B 2 D 2 E 2 F 2 C 5 I 5

3 CPA ActivityImmediate predecessor Duration (weeks) A : Decide on new system - 1 B : Prepare ICT control room A 2 C : Buy hardware (including delivery) A 5 D : Buy software (including delivery) A 2 E : Train ICT staff B, C, D 2 F : Install cabling C 2 G : Install hardware E, F 1 H : Install software G 1 I : Prepare pupil/ staff data A 5 J : Install data H, I 1 K : Train teaching staff H 2 L : Test system J, K 1 Now find the earliest start time and the latest finish time for each activity. K 2 A 1 G 1 J 1 H 1 L 1 B 2 D 2 E 2 F 2 C 5 I 5 1 1 1 1 6 6 10 8 0 9 12 1 8 6 9 6 11 8 12 1012 13 6 It takes a minimum of 13 weeks to set up the ICT system

4 CPA ActivityImmediate predecessor Duration (weeks) A : Decide on new system - 1 B : Prepare ICT control room A 2 C : Buy hardware (including delivery) A 5 D : Buy software (including delivery) A 2 E : Train ICT staff B, C, D 2 F : Install cabling C 2 G : Install hardware E, F 1 H : Install software G 1 I : Prepare pupil/ staff data A 5 J : Install data H, I 1 K : Train teaching staff H 2 L : Test system J, K 1 We can identify the critical activities K 2 A 1 G 1 J 1 H 1 L 1 B 2 D 2 E 2 F 2 C 5 I 5 1 1 1 1 6 6 10 8 0 9 12 1 8 6 9 6 11 8 12 1012 13 6 Critical activities: A, C, E, F, G, H, K, L

5 CPA ActivityFloat time B 3 D 3 I 5 J 1 We can identify the Float times for the non - critical activities K 2 A 1 G 1 J 1 H 1 L 1 B 2 D 2 E 2 F 2 C 5 I 5 1 1 1 1 6 6 10 8 0 9 12 1 8 6 9 6 11 8 12 1012 13 6

6 Activity CPA Next up – a Gantt Chart (Cascade Diagram) K 2 L 1 10 12 13 A 1 G 1 J 1 H 1 B 2 D 2 E 2 F 2 C 5 I 5 1 1 1 1 6 6 10 8 0 9 1 8 6 9 6 11 8 12 10 6 ACE F GHKL B D I J ActivityFloat time B3 D3 I5 J1 First set down a critical path Next, set down the other critical activity and the activities with a float.

7 Activity CPA We can shuffle the activities with float. Why might we do this? K 2 L 1 10 12 13 A 1 G 1 J 1 H 1 B 2 D 2 E 2 F 2 C 5 I 5 1 1 1 1 6 6 10 8 0 9 1 8 6 9 6 11 8 12 10 6 ACE F GHKL B D I J ActivityFloat time B 3 D 3 I 5 J 1 B D II J D

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