Earticle

Model Driven Architecture (MDA), as we consider the growing significance and utility of modeling in the development of software and solutions, it reflects the benefits of MDA to transform one PIM into several PSMs, each for platform or technology in which the final system will be deployed, and the automatic code generation that implements the system for those platforms from the corresponding PSMs. Service-oriented architectures (SOA) are also presented as the key to business agility, especially when combined with a model-driven approach. Model-Driven Architecture (MDA) is a well-developed idea that fits well with SOA, but as of today, it has been a specialized technique that is beyond practical application scope of most enterprises. We describe the MDA and SOA abstract components to be useful in mobile business applications in the future, allowing to add the features of the two modeling architectures, concentrating on the classification of models that is embodied individually. The framework given, a unified modeling architecture, which illustrates how the two architectures can be brought together into one.

This paper presents a study on the use of security standards in the context of serviceoriented architectures with the goal of testing which are more costly in terms of performance in building secure Web services. Security policies applied to web services are evaluated through application development, testing and performance evaluation. The results of this preliminary study will be used in the near future to create service level agreements in an SOA with a focus on quality of service called WSARCH (Web Services Architecture). The current prototype of this architecture already allows studies to accurately verify which security techniques have low impact in relation to performance.