April 2005
Intermediate to advanced
944 pages
24h 6m
English
Content preview from Estimating Software-Intensive Systems: Projects, Products, and Processes
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Chapter 11Bottom-Up Estimating and Scheduling
In the Bottom-Up Method, estimators start with a detailed list of project tasks and separately estimate the resources (effort, duration, materials, and consumables) needed to perform each task (or a group of related tasks). Then they add the results together to produce the total for the entire project. Planners arrange the tasks in a logical network to explicitly handle constraints on task sequencing, the available resources, the total cost, and total time. (The ability to handle such constraints distinguishes the Bottom-Up Method from the Linear Method described in Chapter 3, “A Basic Estimating Process: The Linear Method.”)
This chapter shows how to define a work breakdown structure by partitioning ...
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