Project Scheduling and Crashing Recall the four stages

Project Scheduling and Crashing

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

Recall the four core knowledge areas

Recall the four facilitating knowledge areas

Recall the four project player types

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

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

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

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

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

Sequence Relationships n. Finish/Start n. Start/Start n. Finish/Finish n. Start/Finish

Project Networks n. Activity on node –Most popular n. Activity on arrow –Not used

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

Tabular format NAME DURATION PREDECESSORS A 5 B 10 C 5 A, B D 20 A, B E 5 C F 10 D, E

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

The AOA Network

Start and Finish Dates ES EF N/K LS LF

Notation n n n 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 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 N -- the label of the node (task, step, activity) K -- the duration of the node ( number following the slash)

Start and Finish Dates ES LS N/K EF LF

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

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

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

Example 3