“…Business information exchange implies many concepts -wire, network, switch, relay, brokerage, mediation, etc. Contemporary researches often used the terms like portal [33], hub [32], exchanges [22], broker [29], mediator [18] and facilitator [17] to describe EMp construction. In all these term usages, there is a common intention that the constructed systems must support a common place or network that could correctly relay or switch the passing information without changing its underlying meaning.…”