Software effort models and effort estimates help project managers allocate resources, control costs, and schedule and improve current practices, which in theory should allow projects to be finished on time and within budget. In the context of Web development and maintenance, these issues are also crucial and very challenging given that Web projects have short schedules and a highly fluidic scope. Therefore, the objective of this chapter is to introduce the concepts related to Web effort estimation and effort estimation techniques. These concepts will be used in further chapters.
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