Filetype PDF | Posted on 01 Feb 2023 | 3 years ago
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SOFTWARE LIFE CYCLE
MODELS
Software Life Cycle
•Software life cycle (or software process):
• series of identifiable stages that a software product undergoes during its life
time.
It includes:
• Feasibility study
• requirements analysis and specification,
• design
• coding
• testing
• maintenance.
Software Development Life Cycle(SDLC)
Model
• A software development life cycle model (or
process model):
• a descriptive and diagrammatic model of software life cycle:
• identifies all the activities required for product development,
• establishes a precedence ordering among the different
activities,
• Divides life cycle into phases.
SDLC
(cont.)
• Many life cycle models have been proposed.
• Some commonly used models are:
• Classical Waterfall model
• iterative waterfall model
• Evolutionary model
• prototyping model
• spiral model
etc.
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