EVOLUTION OF WEB-BASED SYSTEMS IN MODEL DRIVEN ARCHITECTURE

The complexity and size of commercial Web-based systems present a grand challenge to the traditional methodology of software evolution. However, compared to the huge advance of software development technology over the last two decades, the progress of software evolution research and practice, especially for Web-based systems, is still very limited. Modem software development is built on a number of principles, paradigms, and tools. Those building blocks provide a standard, flexible and integrated way to develop and deliver a definite product. From programming language to operating system, from Integrated Development Environment (IDE) to software process model, many alternatives can coexist and be regarded as "standards " due to their popularity or authority. To build a commercial web application, it is completely up to the development team to choose the operating system, programming language, IDE and development process. Thanks to standards built on techniques such as XML and UML, those building blocks could be integrate