something (a term or expression or concept) that has a reciprocal relation to something else. risk is the reciprocal of safety. multiplicative inverse, reciprocal (noun). (mathematics) one of a pair of numbers whose product is 1: the reciprocal of 2/3 is 3/2; the multiplicative inverse of 7 is 1/7.
Virtual Courthouse is  a web-based combination of multimedia technologies and business processes, integrated with a customer-friendly user interface. Our system replicates the current process of dispute resolution in an online environment, removing the constraints of time, expense and distance...
Physical queueing is sometimes replaced by virtual queueing. In a waiting room there may be a system whereby the queuer asks and remembers where his place is in the queue, or reports to a desk and signs in, or takes a ticket with a number from a machine.