Software engineering is the application of a systematic, disciplined, quantifiable approach to the development, operation, and maintenance of software.[1] It encompasses techniques and procedures, often regulated by a software development process, with the purpose of improving the reliability and maintainability of software systems.[2] The effort is necessitated by the potential complexity of those systems, which may contain millions of lines of code.[3]
The term software engineering was popularized by F.L. Bauer during the NATO Software Engineering Conference in 1968.[4] The discipline of software engineering includes knowledge, tools, and methods for software requirements, software design, software construction, software testing, and software maintenance tasks.[5] Software engineering is related to the disciplines of computer science, computer engineering, management, mathematics, project management, quality management, software ergonomics, and systems engineering.[6]
As of 2004, the U. S. Bureau of Labor Statistics counts 760,840 software engineers holding jobs in the U.S.; for comparison, in the U.S. there are some 1.4 million practitioners employed in all other engineering disciplines combined.[7] Due to its relative newness as a field of study, formal education in software engineering is often taught as part of a computer science curriculum, and as a result most software engineers hold computer science degrees
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