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The goal of a reengineering project is to restructure a legacy software system so that some of its quality attributes are improved. This restructuring could imply a change in the technological framework, such as a migration to an SOA framework. Whatever the technology, the reverse-engineering project should assess the feasibility of the restructuring. In fact, even if the target of the reverse-engineering is to remodel a system, it must also prototype the migration of some key component to the new architecture to check that it is possible.
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Software development process according to the Rational Unified Process is broken intro phases. Each phase has a cycles, each cycle working on a new generation of the product. The results in a cycle in general calls artifacts.
Summary description of the possible artifacts after each phase and evaluation criteria are represented.
Typical artifacts that could be produced:
• A vision document: a general vision of the core project’s requirements, key features, and main constraints.
• A initial use-case model, 10% -20% complete.
• A business model, if necessary.
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General XP’s phases are exploration, commitment and steering. At the release level, these align with particular collections of activities, called workflow details in the RUP Project Management discipline.
Exploration and Commitment phases could be mapped into the Plan for Next Iteration and Steering could be mapped into Monitor and Control Project phase.
In Extreme Programming by Kent Beck, there is a lifecycle of an ideal XP project, and the first level headings are exploration, planning, iterations to first release, ‘productionizing’, maintenance and death . These appear to be the top-level phases, but it turns out this is not quite accurate. An XP project will be bounded by an initial exploratory phase and “death” when the project is closed out. But the major beat is the release and each release has an exploration phase . So the exploration phase that brackets the project (and leads into the first release) is a special case in that there is an initial gate to pass at which a decision is made on the wisdom of continuing at all. Both XP releases and iterations have the three phases exploration, commitment, and steering. “Maintenance” really characterizes the nature of the XP project after the first release.