... Performance Modeling of Critical Event Management for Ubiquitous Computing Applications Tridib Mukherjee, Krishna Venkatasubramanian, Sandeep K. S. GuptaDepartment of Computer Science ... average value of can therefore be obtained asfollows:(1)where is an upper bound for the window -of- opportunity. For noncritical events,tends to , thereby making undefined. For critical events, however, ... crit-ical events (e.g. large influx of patient). The resulting effects, of the critical events, on the system are called criticality (e.g. unableto allocate resources for patients) [5]. Critical events...