Define Software Engineering
Software Engineering is a systematic, disciplined, and quantifiable approach to the development, operation, and maintenance of software. It applies engineering principles to software creation, establishing methodologies for producing high-quality, reliable, maintainable, and efficient software systems in a cost-effective way.
Key Aspects of Software Engineering​
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Application of Engineering Principles: Uses structured approaches and proven methods rather than ad-hoc development.
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Systematic Process: Follows defined processes with clear phases and activities.
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Disciplined Methodology: Employs formal methods, standards, and practices to ensure quality.
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Quantifiable Approach: Utilizes metrics and measurements to evaluate and improve the development process and product quality.
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Entire Software Lifecycle: Encompasses all phases from initial conception through design, development, testing, deployment, and maintenance.
IEEE Definition​
According to the IEEE (Institute of Electrical and Electronics Engineers), Software Engineering is:
"The application of a systematic, disciplined, quantifiable approach to the development, operation, and maintenance of software; that is, the application of engineering to software."
Software Engineering emerged as a response to the software crisis of the 1960s and 1970s, when projects frequently exceeded budgets, missed deadlines, and delivered unreliable software. It aims to address these issues by providing a structured framework for software development.