Advent of the computation data, the life type of the people and business world has changed, for that, reason has generated that the reservations department, almost the totality of the hotels has adopted computation systems. Today's companies are all facing challenges. Their system architectures are largely based on a mainframe TPF (Transaction Processing Facility) framework which, while very reliable, and capable of tremendous I/O throughput – has relatively little CPU power, and is exorbitantly expensive to maintain and enhance. The CRO is the physical office or site at which the chain’s reservations operate.
