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CASE tools

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. CASE tools: Automated Diagram Support . Checks for syntactic correctness

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CASE tools

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  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 A&D 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 tool’s capabilities • Major danger: completeness and syntactic correctness does NOT mean compliance with requirements • Costs associated with the use of the tool: purchase + training

  6. 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…

  7. 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 todescribe OO methods or methodological frameworks that would be able to employ UML. • The Rational Unified Process • The Object-oriented Process, Environment and Notation (OPEN)

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