Control flow graph

A CFG captures the flow of control within a program. Such a graph assists testers in the analysis of a program to understand its behavior in terms of the flow of control. A CFG can be constructed manually without much difficulty for relatively small programs, say containing less than about 50 statements. However, as the size of the program grows, so does the difficulty of constructing its CFG and hence arises the need for tools. A flow diagram can be developed for the process control system for each critical activity. Process control is normally a closed cycle in which a sensor provides information to a process control software application through a communications system. The application determines if the sensor information is within the predetermined (or calculated) data parameters and constraints. The results of this comparison are fed to an actuator, which controls the critical component. This feedback may control the component electronically or may indicate the need for a manual action. Name: Debarghya Mukherjee Mobile: (+91)-9038787021 Email: debarghya_mkr@yahoo.com