
132 SOF T WARE ENGINEERING AND TESTING
in the program. Flowcharts also help during testing and modifications in the
programs.
Flowchart Symbols
1. Terminal Symbol. Terminal symbols are used for two purposes: to define the
starting (START or BEGIN) point of the flowchart and to define the ending
point (END) of the flowchart.
2. Input/Output Symbol. Input/output symbols are used to indicate the logical
positioning of input/output operations. The input operation is the entry of
computer data and the output operation is the displayed output operation.
3. Processing Symbol. Processing symbols are used to indicate the arithmetic and
data-movement ...