Schaum's Outline Series

CHAPTER 4 Software Project Planning 65
d 50 140
e 100 280
f 10 28
9. Estimate the cost parameters from the given set of data:
Project Size (KLOC) Cost (programmer-months)
a 30 95
b 5 80
c 20 65
d 50 155
e 100 305
f 10 35
10. Calculate COCOMO effort, TDEV, average staffing, and productivity for an organic
project that is estimated to be 39,800 lines of code.
11. Calculate the unadjusted function points for the problem description of Problem 2.
Answers to Review Questions
1. What is the distinction between a WBS and a process model?
A process model describes the software activities in a generic sense, that is, for many
different projects. It describes the process, the artifacts produced and used, and the
actors responsible for the activities. A process model is a graph; it can have cycles and
so on. A work breakdown structure is a tree that expands the process model’s activities
with details and necessary subtasks that are specific for a particular project. A WBS
task that appears in every project should also be in the process model.
2. Why should a WBS be a tree?