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Project Management

Project Management. Lecture Network Analysis. Introduction Project planning Gantt chart and WBS Project planning Network analysis I. Project planning Resource analysis Risk management Quality Budgets and cost control Project teams. Plan. Introduction Project planning

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Project Management

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  1. Project Management LectureNetwork Analysis

  2. Introduction Project planning Gantt chart and WBS Project planning Network analysis I Project planning Resource analysis Risk management Quality Budgets and cost control Project teams Plan • Introduction • Project planning • Gantt chart and WBS • Project planning • Network analysis I • Project planning • Network analysis II

  3. Iterative Process • The plan will evolve as the project evolves • The plan is reviewed and updated as more information becomes available and uncertainties become less uncertain

  4. PBS Example

  5. Use Case • Describes a unit of functionality from a users perspective • May be text or diagram • Therefore they provide a good tool for Project Task Planning • They also can determine the nature of the project process • How many development iterations?

  6. Use Case Example – Big John’s

  7. Use Case Example – Big John’s • Each Use Case Shown can be shown as activities in the PBS • The prioritisation can be used to describe the activities for two development iterations • This will be significantly different to the process if only one iteration was used

  8. Gantt Chart Example

  9. Gantt Chart Example

  10. Gantt chart disadvantages • Not ideal for showing inter-relationships • Locating an activity requires three simultaneous decisions: • Method • Time • Resources

  11. Complexity • Number of tasks? • Number of people? • Size of Budget? • Number/Nature of constraints • Dependencies between tasks

  12. Why Network Diagrams? • Splits up the decision making process into • Method/logic - the order in which tasks have to be completed • Time – estimates for the time to completion can be added to each task • Resources – these can be added and then analysis carried out

  13. Two Methods • Activity on Arrow • Traditionally the preferred method • Activity on Node • More popular these days • Supported by most Project Management software tools (i.e. MS Project)

  14. Activity on Arrow • Arrows are used to represent an activity • Circles are used to represent the points where activities meet • i.e. the dependency between activities

  15. Activity on Node • Activities are represented by boxes • Dependencies are represented by arrows joining the boxes

  16. Comparison

  17. Dependency Example • Task B cannot start until Task A is complete • Activity on Node • Activity on Arrow • Task B cannot start until Task A is complete • Activity on Node

  18. More complex example • Four activities/tasks: • A, B, K, L • Activity K is dependent on activity A • Activity L is dependent on activities A and B

  19. The problem with AoA • The same example in AoA • The same example in AoA Wrong… • Activity K is dependent on activity A • Activity L is dependent on activities A and B Right

  20. Exercise 1 • Draw the following: • Activity K is dependant on Activity A • Activity L is dependent on Activity B • Activity M is dependent on Activity A and B

  21. Exercise 2 • Draw the following: • Activity K is dependent on activities A and B • Activity L is dependent on activities B and C • Activity is dependent on activity B

  22. Drawing the network • Direction • The flow of work is from left to right • Identifying Tasks • Each task is given a unique ID number • ID number is often given in WBS

  23. Scale • Diagram is not drawn to scale • Length and size do not matter • They have no meaning

  24. What’s in the box?

  25. Project Exercise 1

  26. Errors in Logic • Looping • Due to a mistake in drawing or to errors in identifying dependent activities

  27. Errors in Logic • Dangling • Usually occur when activities are added as an afterthought • Can be avoided by using a single finish node

  28. Project Exercise 2

  29. Project planning Network analysis I Project planning Network analysis II Project planning Resource analysis Risk management Quality Budgets and cost control Project teams Plan • Introduction • Project planning • Gantt chart and WBS • Project planning • Network analysis I • Project planning • Network analysis II Final thought for the day:Erm…

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