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Project Scheduling and Crashing. Recall the four stages Project Conceptualization and Definition Project Conceptualization and Definition Project Planning.

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Presentation on theme: "Project Scheduling and Crashing. Recall the four stages Project Conceptualization and Definition Project Conceptualization and Definition Project Planning."— Presentation transcript:

1 Project Scheduling and Crashing

2 Recall the four stages Project Conceptualization and Definition Project Conceptualization and Definition Project Planning and Budgeting Project Planning and Budgeting Project Execution Project Execution Project Monitoring and Control Project Monitoring and Control Project Termination and Closeout Project Termination and Closeout

3 Recall the four core knowledge areas

4 Recall the four facilitating knowledge areas

5 Recall the four project player types

6 Recall five processes within the scope knowledge area 1. Plan Scope Management 1. Plan Scope Management 2. Collect Requirements 2. Collect Requirements 3. Define Scope 3. Define Scope 4. Create WBS 4. Create WBS 5. Validate Scope 5. Validate Scope 6. Control Scope 6. Control Scope

7 Time Management Knowledge Area - Processes Plan Schedule Management Plan Schedule Management Define Activities Define Activities Sequence Activities Sequence Activities Estimate Activity Durations Estimate Activity Durations Develop Schedule Develop Schedule Control Schedule Control Schedule

8 Activity Definition Decomposition –top down…. Decomposition –top down…. –What has to happen in order to create a WBS Composition from the bottom up Composition from the bottom up Use of a template Use of a template –A list from a previous project that is similar

9 Consider the 2004 Construction Estimator Excavation Excavation Foundation Foundation Flatwork Flatwork Brick hearth & veneer Brick hearth & veneer Rough hardware Rough hardware Finish hardware Finish hardware Rough lumber Rough lumber Finish lumber Finish lumber Rough carpentry labor Rough carpentry labor Finish carpentry labor Finish carpentry labor Rough carpentry labor Rough carpentry labor Finish carpentry labor Finish carpentry labor Countertops Countertops Cabinets Cabinets Insulation Insulation Roofing Roofing Painting Painting Shower & tub Shower & tub

10 Activity Sequencing Interview CIO Interview Manager A Interview Manager B Interview Manager C Interview Manager D Compile interview data and analyze Prepare report Prepare and deliver presentation

11 Sequence Relationships Finish/Start Finish/Start Start/Start Start/Start Finish/Finish Finish/Finish Start/Finish Start/Finish

12 Project Networks Activity on node Activity on node –Most popular Activity on arrow Activity on arrow –Not used

13 From project networks, we determine The project duration The project duration The critical path The critical path Tasks on the critical path Tasks on the critical path Tasks not on the critical path Tasks not on the critical path Slack associated with non-critical tasks Slack associated with non-critical tasks Earliest start, earliest finish, latest start and latest finish times Earliest start, earliest finish, latest start and latest finish times

14 Tabular format NAMEDURATIONPREDECESSORS A5 B10 C5A, B D20A, B E5C F10D, E

15 The AON Network A/5 D/20 B/10 E/5 F/10 C/5

16 The AOA Network

17 Start and Finish Dates ES EF N/K LS LF

18 Notation ES – earliest start for the node, assumed to be at the beginning of the day ES – earliest start for the node, assumed to be at the beginning of the day EF – earliest finish for the node, assumed to be at the end of the day EF – earliest finish for the node, assumed to be at the end of the day LS – latest start for the node, assumed to be at the beginning of the day LS – latest start for the node, assumed to be at the beginning of the day LF – latest finish for the node, assumed to be at the end of the day LF – latest finish for the node, assumed to be at the end of the day N -- the label of the node (task, step, activity) N -- the label of the node (task, step, activity) K -- the duration of the node ( number following the slash) K -- the duration of the node ( number following the slash)

19 Start and Finish Dates ES EF N/K LS LF

20 Precedence Relations With FS (FINISH/START) relationships, a successor activity does not start until all of its predecessors are With FS (FINISH/START) relationships, a successor activity does not start until all of its predecessors are

21 Example 1 A/6 B/7 C/8 D/10

22 Example 2 A/6 B/7 C/8 D/10

23 Example 3

24


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