We will now examine how a system is developed. The example used for this is, of course, a simple washing machine control. The development will follow the broad pattern shown in Fig. 51.5.
Fig. 51.5 Developing the system for washing machine control
The problem definition is based on the requirements of the specification. It is also necessary for the redesign of the existing unit. It is a means of determining what a system's performance is capable of and what is required from it.
Data flow charts are used to identify all the hardware elements of a system at this stage for a general broad picture of the structure ...