Chapter Nine

d. All of the above

Network diagrams answer which of the following questions? a. What activity must occur before this activity can occur? b. What activity must follow this activity? c. What activity can occur concurrently? d. All of the above

F

Networks logic diagrams are typically drawn to scale. T/F

a. That efficient project planning can provide economic benefits.

The "Santa Monica Freeway Reconstruction" sidebar illustrates_____. a. That efficient project planning can provide economic benefits. b. The risk involved in accepting a liquidation clause. c. The unfair nature of the competitive bid environment. d. The "high profile" nature of a california infrastructure project.

b.Setup

Which of the following is not typical activity category? a. Production b. Setup c. Procurement d. Administrative

d. Milestones

Certain key events are called: a. Dummies b. Critical events c. Nodes d. Milestones

c. Activity C can begin once activities A and B are completed.

Given the following diagram (Figure 9.11), which of these statements is correct? a. Activity C can begin once activity A is completed. b. Activity D can begin once activities A and B are completed. c. Activity C can begin once activities A and B are completed. d. None of the above is true

T

In the typical purchasing sequence, the submital is made by the vendor, approved by the general contractor, designer, and owner, with final fabrication by the vendor to follow. T/F

F

It is acceptable to use a single node to represent multiple activities. T/F

Conclusion

The completition of the network diagram marks the completition of the planning stage of a project and is important for a number of reasons. First, a network diagram should define the most expeditious schedule, which (as illustrated in the "Santa Monica Freeway Reconstruction" sidebar) can lead to significant cost savings on the project. Second, the schedule defines the impact of one activity on another, which can become critically important of one activity on another, which can become critically important when delays occur on a project, and a work-around solution must be determined. Third, once durations are specified, the network diagram can determine the starts and finishes each activity. This is the subject of the next chapter. A network is a working is a working tool. To keep it effective, it must be updated and adjusted as the project moves along. The logic that has been established at the planning stage is based on the best knowledge available, but certainly as real events happen on the job site, refinements must occur. It is best to think of network sheduling as an iterative process-a scheduling team makes its best estimates of the order and duration of activities, then the schedule is run and examined. Adjustments are made and the schedule is run again. This process is repeated over and over again even as construction begins. The only difference is that real durations and events begin to play a role in the iterations.

T

The convention used to number networks horizontally and vertically is done to provide a technically correct solution. T/F

T

The creation of a network schedule is an important component of the planning stage of a project. T/F