INSTRUCTOR’S RESOURCE MANUAL
Project Scheduling: Lagging, Crashing, and Activity Networks
Achieving Competitive Advantage
Jeffrey K. Pinto
PROJECT FOCUS – A Crushing Issue: How to Destroy Brand New Cars
10.1 LAGS IN PRECEDENCE RELATIONSHIPS Finish to Start Finish to Finish Start to Start Start to Finish
10.2 GANTT CHARTS Adding Resources to Gantt Charts Incorporating Lags in Gantt Charts
PROJECT MANAGERS IN PRACTICE – Major Julia Sweet, USAF
10.3 CRASHING PROJECTS Options for Accelerating Activities
10.4 ACTIVITY ON ARROW NETWORKS How are the Different? Dummy Activities Forward and Backward Passes with AOA Networks AOA versus AON
10.5…show more content… c. Start to start: A contractor may elicit RFQs from subcontractors (activity B) while blueprints are still being fine tuned (activity A). This creates a lag between the start of activity A and the start of activity B.
d. Start to finish: Workers can begin putting up shower molding (activity A), but the work cannot be finished until installation of the shower head and faucet begins (activity B).
2. The advantage of Gantt charts lies in their linkage to the project schedule baseline. Explain this concept.
Because they are tied to the project schedule, Gantt charts allow project teams to track a project’s actual progress with the project’s planned progression. They create an easy reference for project teams that alert members to variance from the schedule baseline and the impact of the variance on the project network. Delays in one activity may create delays in subsequent activities. Here, Gantt charts can be used to update the baseline. Their depiction of variances from the baseline makes Gantt charts a useful project control tool by allowing the PM to identify problems that may jeopardize the team’s ability to meet project milestones.
3. What are the advantages in the use of Gantt charts over PERT diagrams? In what ways might PERT diagrams be advantageous?
Gantt charts display the project baseline. Each activity can then easily be referenced at any point during the project to see if progress is on target. Gantt charts are also more useful