3.6

The structured approach to software development consists of the five steps: define the problem, plan the solution, build the solution, check the solution and modify the solution. The first stage focuses on defining the problem and lists the requirements of the software. In the second stage the data and processes of the existing system are analysed so that the development team know how the system works. Stage 3 involves building the solution. This is followed by the testing stage, after which the software is placed in operation. While in operation, there is a constant evaluation, the results of which are used to modify the program.