Amacom - Modern Project Management (Ocr) - 2001 ! - (By Laxxuss)

Consequently time phasing cannot be done until a

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Unformatted text preview: e displayed by clicking on the Budgeted Qty and Mhr Listing button on the Main Menu. After the original man-hour budget has been approved, it needs to be "time phased." This refers to a graphical representation of how the man-hour budget will be expended over time, as depicted in Figure 1-1. Time phasing is a process that "integrates" the budget data with the scheduling data to produce (text continues on page 54) Page 52 Figure 2-16. Budgeted Cost Listing. Figure 2-17. Budgeted Qty and Mhr Listing. Page 54 what is often called the project baseline . This integrated budget and scheduling information, as shown in Figure 1-1, is also called the project plan or the time-phased budget . Consequently, time phasing cannot be done until a project schedule has been produced. Time phasing is first calculated at the work package level and then "rolled up" to obtain the time phasing for all the control packages at higher levels in the WBS hierarchy. This "rollup" is more complicated than the rollup seen on the Budgeted Cost Listing or the Budgeted Quantity and Manhour Listing because it involves the schedule dates for each task. In order to time-phase an individual work package, one must first know when the work of the work package is to begin and end. This information is obtained from the project schedule, which is explained in the next section. One also needs to know how the labor-hour budget for the work package will be expended during this interval between the work package start date and the work package end date. In this book we assume that each task's budget is expended uniformly over the duration of each task. This is a good assumption if our rule that work packages are of short duration is observed. If there exist tasks with unusually long durations, this may not be a good assumption, but it can be corrected by subdividing the task into a number of tasks with short duration. Modern Project uses the linear spread method to time-phase work packages. This means that the labor-hour budget is expended uniformly between the start date and the end date of each task. There are other, more complicated time-phasing techniques, but it has been found that there are few projects that really require them. For this reason they have not been incorporated into Modern Project. 2.6— Scheduling the Work The difference between work sequencing and scheduling the work is the application of the estimated resources to the sequence Page 55 of work. This is sometimes referred to as resource scheduling . Resource scheduling can often be a complex undertaking and is therefore dealt with in detail in Chapter 7. Only enough about the subject is presented here to enable the reader to understand the purpose of resource scheduling to complete this discussion of project planning and to familiarize the reader with how to enter schedule dates into the example database manually. This understanding will enable a reader who is already familiar with a...
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