The quality of sensor networks is a direct function of how well a subjective area is processed by the source nodes. And such quality factor depends on the application specific requirements, which depends on set of constraints of sUbjective region which is monitored by the source sensors. On other hand, the exactness of each network node is different, based on its application. The performance of the node is described as a quality of node which may be vary for different nodes for example, if a node is equipped with an audio device then signal to noise ratio will determine its quality