Iterative Development Summarises some aspects of the iterative development notes as an aid to study. Not a substitute for the full notes.

1
Iterative DevelopmentSummarises some aspects of
the iterative development notesas an aid to
study. Not a substitute for the full notes.

• Requirements Engineering Bsc Applied Computing
  Year 2

2
Iterative Development

• The Unified Process uses iterative development
• 4 phases of development
• Inception
• Elaboration
• Construction
• Transition

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Iterative Development

• Construction phase is divided into Iterations
• Each iteration consists of Analysis, Design,
  Coding Testing
• Majority of coding done during Construction Phase

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Inception Phase

• Determining if the project is worth doing
• Identifying the boundaries in regard to what the
  system will include
• Identifying some requirements
• Getting a Go/No Go from client

5
Elaboration Phase

• Identifying risk factors e.g. requirements,
  skills technological risks
• Collecting further requirements and establishing
  a baseline architecture by using such things as
• Use Case Models
• Class Diagrams
• Sequence Diagrams
• Preparing a plan of construction

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Construction Phase

• Divided into iterations with strict deadlines
• Each iteration implements a few scenarios or even
  a whole use case
• If time is running out, scenarios moved to a
  later iteration
• Refactoring of previous code occurs in each
  iteration
• Production quality code after each iteration

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Construction Phase

• Order in which use cases are built depends on (i)
  importance and (ii) risk
• Domain people divide Use Cases from most to least
  important
• Developers divide use cases from most to least
  risky
• Most important and most risky done first

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Transition Phase

• Takes up between 10 and 35 of total project
  time
• Training the main users of the system
• Beta testing to perfect the system
• Performance tuning to ensure that the system
  meets speed and memory requirements etc.

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Authorship

• Prepared by Dave Martin with modifications by
  Ian Downey