CASE tools

1
CASE tools
1980s
Upper CASE tools support for the analysis and
design
Lower CASE tools support for construction and
maintenance
Nowadays
Integrated CASE tools Offer extensive life
cycle coverage
2
CASE tools Automated Diagram Support

• Checks for syntactic correctness
• Data dictionary support
• Checks for consistency and completeness
• Navigation to linked diagrams
• Layering
• Requirements traceability
• Automatic report generation
• System simulation
• Performance analysis

3
CASE tools Software construction and maintenance

• Code generators
• Generate code from the design model
• Think of the advantages!
• may also generate database schemata
• Maintenance tools
• Reverse Engineering
• Analysis of program code

4
CASE tools Advantages

• Help standardization of notations and diagrams
• Help communication between development team
  members
• Automatically check the quality of the AD
  models
• Reduction of time and effort
• Enhance reuse of models or models components

5
CASE tools Disadvantages

• Limitations in flexibility of documentation
• May lead to restriction to the tools
  capabilities
• Major danger completeness and syntactic
  correctness does NOT mean compliance with
  requirements
• Costs associated with the use of the tool
  purchase training

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UML History and Brief Summary (1/2)
Adoption of the OO paradigm problematic
Emergence of UML as a methods unification
approach
UML An OMG standard since 1997 Under way to
become an ISO standard!
UML notation a melding of graphical
notations from various sources.
other concepts
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UML History and Brief Summary (2/2)
UML A method or a notation?

• Modeling method techniques guidelines
  notations ? roadmap for the development of a
  model

• Primarily a notation

However, there are attempts to describe OO
methods or methodological frameworks that would
be able to employ UML.

• The Rational Unified Process
• The Object-oriented Process, Environment and
  Notation (OPEN)