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Software Engineering, which means the application of engineering to software, is a method to develop, operate and __ maintain _ software. That is, the development of software is on a systematic, __ disciplined ____, quantitive basis. Before starting the development of software, you have to systematically approach the problem. You have to understand the __ requirements (what the software is supposed to do), carry out the design, do the __ coding ___, carry out a rigorous testing and if the software is as per the requirements, release the software to the customer. Subsequently, if the customer wants some changes--refinements or enhancements then the software has to be ___ modified ______.

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出自：国家开放大学计算机英语

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