Software Life Cycle II

Problem Analysis and Requirements Specification:
Analysis of the problem domain and iterative development of the specification in cooperation with the users and/or domain experts. Prototypes may be necessary/useful to ease the cooperation. The resulting document from this step is used to measure the external factors of software quality.

Design:
Development of a plan how the specification can be implemented. This process heavily depends on the chosen modeling techniques and the programming language and environment to be used.

Implementation:
Development of program text that can be compiled into executable code including testing on the module level.

Testing:
Testing the software product against its specification.

Maintenance:
Late bug fixes and adaptations of the software product to new requirements.

	Problem Analysis and Requirements Specification: Analysis of the problem domain and iterative development of the specification in cooperation with the users and/or domain experts. Prototypes may be necessary/useful to ease the cooperation. The resulting document from this step is used to measure the external factors of software quality.
	Design: Development of a plan how the specification can be implemented. This process heavily depends on the chosen modeling techniques and the programming language and environment to be used.
	Implementation: Development of program text that can be compiled into executable code including testing on the module level.
	Testing: Testing the software product against its specification.
	Maintenance: Late bug fixes and adaptations of the software product to new requirements.