1. 7 July 2003 MDA presentation Dennis Wagelaar 1 Model-Driven Architecture The current state of affairs

2. 7 July 2003 MDA presentation Dennis Wagelaar 1 What is MDA? ● OMG's standard for making software designs independent of implementation platforms. ● Can be based on other standards, such as UML, MOF, XMI, CWM. ● Allows for gradual refinement of designs towards implementation platforms. Overview Mapping Transform. Practice Research

3. 7 July 2003 MDA presentation Dennis Wagelaar 1 How does MDA work? Overview Mapping Transform. Practice Research Start with a Platform- Independent Model (PIM) representing business functionality and behaviour, undistorted by technology details. Platform- Independent Model A Detailed Model, stating Pre- and Post- Conditions in OCL, and Semantics in Action Language Some slides from OMG...

4. 7 July 2003 MDA presentation Dennis Wagelaar 1 How does MDA work? Overview Mapping Transform. Practice Research Platform- Independent Model CORBA Model MDA tool applies a standard mapping to generate Platform- Specific Model (PSM) from the PIM. Code is partially automatic, partially hand- written. Java/EJB Model XML/SOAP Model Other Model Map a PIM to Many Middleware Technologies via OMG Standard Mappings Some slides from OMG...

5. 7 July 2003 MDA presentation Dennis Wagelaar 1 How does MDA work? Overview Mapping Transform. Practice Research Some slides from OMG... Platform- Independent Model CORBA Model MDA Tool generates all or most of the implementation code for deployment technology selected by the developer. Java/EJB Model CORBA XML/SOAP Model Java/EJB XML/SOAP Other Other Model Map PSM to application interfaces, code, GUI descriptors, SQL queries, etc. Recent addition: Computation Independent Model (CIM) => Represents a domain model.

6. 7 July 2003 MDA presentation Dennis Wagelaar 1 MDA Mapping Overview Mapping Transform. Practice Research PIM PSM Transformation

7. 7 July 2003 MDA presentation Dennis Wagelaar 1 MDA Mapping Overview Mapping Transform. Practice Research “An MDA mapping provides specifications for transformation of a PIM into a PSM for a particular platform. The platform model will determine the nature of the mapping.” (MDA Guide V 1.0)

8. 7 July 2003 MDA presentation Dennis Wagelaar 1 Model Type Mappings Overview Mapping Transform. Practice Research Maps PIM language types to PSM language types: – Metamodel Mappings: types in PIM and PSM are specified as MOF metamodels. Uses mapping rules/algorithms to map PIM type instances to PSM type instances. – Other Mappings: e.g. CORBA IDL.

9. 7 July 2003 MDA presentation Dennis Wagelaar 1 Model Instance Mappings Overview Mapping Transform. Practice Research Transforms specific PIM model elements: – Marks: represents a PSM concept and is applied to a PIM element to indicate how it is to be transformed. Most mappings are a combination of type and instance mappings. Templates can be associated with a set of marks.

10. 7 July 2003 MDA presentation Dennis Wagelaar 1 Example: CORBA Overview Mapping Transform. Practice Research OMG has defined a UML profile for CORBA => this serves as a CORBA platform model. Specific stereotypes in the PIM will be transformed to CORBA stereotypes.

11. 7 July 2003 MDA presentation Dennis Wagelaar 1 Transformation Marking Transformation Overview Mapping Transform. Practice Research PIM PSM Marked PIM Marks MappingPlatform

12. 7 July 2003 MDA presentation Dennis Wagelaar 1 Transformation Metamodel Transformation Overview Mapping Transform. Practice Research PIM PSM Transf. Specs PI Meta- model PS Meta- model Source language Target language Language used

13. 7 July 2003 MDA presentation Dennis Wagelaar 1 Transformation Model Transformation Overview Mapping Transform. Practice Research PIM PSM Transf. Specs PI Types PS Types Source types Target types Subtypes of

14. 7 July 2003 MDA presentation Dennis Wagelaar 1 Tools ArcStyler ARI – Kabira xUML, iUML, iCCG Codagen Tools Adaptive Framework CodigoXpress Headway ReView ObjectSpeak BridgePoint, DesignPoint Overview Mapping Transform. Practice Research OptimalJ – Compuware Eclipse Modeling Framework Netbeans AndroMDA MiddleGen xPetstore (in progress) CoCompose?...

15. 7 July 2003 MDA presentation Dennis Wagelaar 1 Cases Wells Fargo Lockheed Martin Aeronautics GCPR / US Government Deutsche Bank (using ArcStyler)... Overview Mapping Transform. Practice Research

16. 7 July 2003 MDA presentation Dennis Wagelaar 1 Research topics Model mapping languages. Model transformation rules/algorithms.... Overview Mapping Transform. Practice Research

17. 7 July 2003 MDA presentation Dennis Wagelaar 1 Research events (1) Net.ObjectDays 2002 Conference OOPSLA 2002 Conference –Workshop on Generative Techniques in the context of Model-Driven Architecture UML 2002 Conference – Workshop in Software Model Engineering OOPSLA 2003 Conference – Special track on domain-driven development Overview Mapping Transform. Practice Research

18. 7 July 2003 MDA presentation Dennis Wagelaar 1 Research events (2) UML 2003 Conference – Workshop in Software Model Engineering – Workshop on Model Driven Architecture in the Specification, Implementation and Validation of Object-oriented Embedded Systems Workshop on MDA: Foundations and Applications – 2003 Metamodelling for MDA – 2003... Overview Mapping Transform. Practice Research