摘要 : Object-oriented framework technology has become a common reuse technology in software development. As with all software, frameworks evolve over time. Once the framework has been deployed, new versions Of a framework potentially ca... 展开 Object-oriented framework technology has become a common reuse technology in software development. As with all software, frameworks evolve over time. Once the framework has been deployed, new versions Of a framework potentially cause a high maintenance cost for the products built with the framework. This fact, in combination with the high costs of developing and evolving a framework, make it important For organizations to achieve a controlled and predictable evolution of the framework's functionality and Costs. 收起