An introduction to the MDA
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This document provides an introduction and overview of Model-Driven Architecture (MDA). It discusses the motivation for MDA, including generating code from configurations to reduce boring code. It describes the key concepts of MDA, including using models as the core artifacts written in formal languages defined by metamodels. It also explains how models can be transformed from one form to another, such as from platform-independent to platform-specific models. Finally, it presents a case study of applying MDA to a triathlon tracking system as an example.
An introduction to the MDA
- 1. An introduction to MDA MDA presentation Lai Duy Ha
- 2. Outline Motivation The MDA framework Case study – triathlon project
- 3. Motivation Boring code cause by: Follow templates or coding style guide. The consistent of the system. The benefit of maintaining. Disadvantage Reduce inspiration of developers. Silly copy/paste code.
- 4. Motivation Example of one normal module: Insert, update, delete record in one table. Each field has its own validation. Field’s presentation (type of control, row, column,….) etc… One system may contains more than 20+ modules like this
- 5. Motivation My approach: Using configuration data. Validation. Layout data. Using template file & complier to generate code.
- 6. Motivation Challenge The change of configuration data’s structure over time. Need to re-construct the structure of configuration data.
- 7. Outline Motivation The MDA framework Case study – triathlon project
- 8. Overview about MDA Model driven architecture: was launched by the OMG in 2001.
- 9. MDA development process The artifacts are formal models (which can be understood by computers) Models are the core at MDA
- 10. What is a model? A model is always an abstraction of something that exists in reality. A model is different from the thing it models, e.g., details are left out or its size is different. A model can be used as an example to produce something that exists in reality. A model is a description of (part of) a system written in a well-defined language.
- 11. What is a model?
- 12. How the models are created? Formally, they are based on a metamodel. A metamodel is simply a model of a modeling language. It defines the structure, semantics, and constraints for a family of models.
- 13. How the models are created? Because a metamodel is also a model, a metamodel itself must be written in a well- defined language. This language is called a metalanguage
- 15. Transformation While the models can be considered as the core of MDA. The most important feature, that makes the MDA different from the traditional process, is the transformation. There are two types of transformation: Model 2 model: QVT, ALT. Model 2 code: using template engine such as: Velocity, Acceleo, Xpand, ....
- 16. Transformation A transformation definition is a set of transformation rules that together describe how a model in the source language can be transformed into a model in the target language.
- 17. The complete MDA framework
- 18. Outline Motivation The MDA framework Case study – triathlon project
- 19. Case study The sample project is the enterprise system, which is used to tracking in triathlon race.
- 20. Case study System architecture: In this case study, we only pay attention to the communication between client-server via restful service.
- 22. Metamodel
- 23. Model editor
- 24. Template editor
- 25. Generate code
- 26. What’s next !!! Buiding custom Domain Specific Language using Xtext. Modeling Java Entrerprise System using mod4j.
- 27. References Kleppe, A. G., J. Warmer, et al. 2003 MDA Explained: TheModel Driven Architecture: Practice and Promise, Addison-Wesley Longman Publishing Co., Inc