qnvironment consists of an infrastructure, often referred as framework, and a collection of tools. Various development tools support individual developers in different steps of the life cycle. These tools may :hange from project to project as the development methods change. Project management tools support the individual project manager in planning, scheduling, and monitoring a project. The plans, models of the software process, are translated into tasks to be enacted by humans. The environment infrastructure provides basic computing facilities such as user interface management, operating system functions, data