The primary level that has to be made about software engineering has to do with its scope of activities. Software engineering is the administration of the whole process of development of computer systems to resolve problems.
As software systems have grown more sophisticated and complex, software developers have sought new methods for his or her development. Software engineering is a response to that need. Software engineering is still rapidly changing and maturing.
Typically, when somebody is told to write a program, another person has told him or her what the program is to do and why; the programmer is concerned only with the best way to write it. As software engineers, nonetheless, we will be the ones concerned with the what and why. Software engineering includes the entire range of activities having to do with problem solving — from helping the shopper define the problem or opportunity, to evaluating the consumer’s satisfaction with the solution.
Developing a software system could require writing a whole assortment of programs to tell machines what to do, writing procedures to inform individuals what to do, and providing training so that folks understand the way to do it. We could have to convert data from an old system so it may be run by a new system, hire people and acquire machines to run the programs, and acquire space in which the machines and folks can do their work. What we are building is a system of many parts working together. Such an endeavor requires endurance and flexibility. We will should fix the system when it does not do what we expected, or the consumer could ask us to alter the system because she or he needs it do something else not beforehand intended.
Programming may be no more than 20 per cent of the total scope of software engineering, and the fraction of effort concerned with programming could be expected to drop as improved methods are used for developing software systems. As time goes on, more of our effort will go into managing the overall process and less into programming.
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