Automating software model evolution

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Software evolution is a change process that covers all the life cycle of a software product. Of all the software processes, evolution is the most expensive. Models are critical in documenting software architectures, and making them easy to understand. A complex software system evolves over time and its architecture will change as the system meets the challenges of its environment. Therefore, models and meta-models play a key role in software evolution. Empirical research shows that it is very difficult to completely predict software changes. More time and money are spent maintaining (changing) a software system than on its original development. According to the European Research Consortium for Informatics and Mathematics (ERCIM) working group on software evolution "The only way to overcome or avoid the negative effects of software aging is by placing change in the center of the software development process." There is therefore a need to provide better and more automated support for software evolution