Introduction to Software Engineering Let us first understand what software engineering stands for. The term is made of two words, software and engineering. Software is more than just a program code. A program is an executable code, which serves some computational purpose. Software is considered to be collection of executable programming code, associated libraries and documentations. Software, when made for a specific requirement is called software product. Engineering on the other hand, is all about developing products, using well-defined, scientific principles and methods. Also we can say that the Software is a program or set of programs containing instructions that provide desired functionality. And the Engineering is the process of designing and building something that serves a particular purpose and finds a cost-effective solution to problems. Software Engineering is a systematic, disciplined, quantifiable study and approach to the design, development, operation, and mai...