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Program Development

Computer-Studies

PROGRAM DEVELOPMENT II

    Step 1: Program Specification   Program development can be divided into several stages which are shown in the diagram below   Step 2: Program Design Step 6: Program Maintenance Step 4: Program Test Step 3: Program Code Step 5: Program Documentation  1.       Problem Definition This stage is the formal definition of task. It includes the specification of inputs and outputs  processing requirements, system constraints( execution time, accuracy, response time), and error handling method   2.       Problem Analysis This step is the process of becoming familiar with the problem that will be solved with a computer program. The process ends when all the programmers’ questions have been resolved and requirement of the program are understood.   3.       Flowcharting Ones the overall problem has been identified, the next stage of software development is program design. The programmer must decide, prior to writing his program, exactly which steps should the computer… Read More »PROGRAM DEVELOPMENT II

Computer-Studies

Program Development

An organized list of instructions that, when executed, causes the computer to behave in a predetermined manner is called a program. There are many programming languages –C, C++, Pascal, BASIC, FORTRAN, COBOL, and LISP are just few. These are high level programing languages. We also have low level language called assembly languages and machine language.   Eventually, every program must be translated into machine language that the computer understands. This translation is done by a compiler, interpreters, and assembler. When you buy software, you normally buy an executable version of program. This means that the program is already in machine language i.e it has already been compiled and assembled and it’s ready to execute.   CHARACTERISTICS OF A GOOD PROGRAM Accuracy: program should be sufficiently accurate to get the desired result Simplicity: program logic should be as simple and uncomplicated as possible Testability: place test points in the program Efficiency:… Read More »Program Development

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