CASE tools Upper CASE tools: support for the analysis and design Lower CASE tools: support for construction and maintenance 1980s… Nowadays… Integrated CASE tools: Offer extensive life cycle coverage

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

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

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

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

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

UML: History and Brief Summary (2/2) UML: A method or a notation?  Primarily a notation  Modeling method: techniques + guidelines + notations  roadmap for the development of a model However, there are attempts to describe OO methods or methodological frameworks that would be able to employ UML. 1.The Rational Unified Process 2.The Object-oriented Process, Environment and Notation (OPEN)