Functioning quality and effectiveness of polymodal infocommunicational systems

Abandoning traditional principles of separation of transmitted information on services for polymodal presentation of information requires development of a new constructive theory of building polymodal infocommunication systems. One of its cornerstones is the quantitative research of the degree of the achievement of the purpose of such systems and subscriber terminals’ participation share in this result. This paper presents an approach to evaluation of polymodal systems effectiveness on the basis of the prime cost index.