VRS is based on a multiple processor design, configured to simulate the architecture of a traditional mainframe CRS.

This approach successfully combines the proven techniques of a traditional CRS with the advantages and economies of a server based platform and databases.

To support a large number of sessions, the processing task is layered and split between multiple processors where additional session processors may be introduced to support additional system users.

All key areas such as inventory, fares and back office data is split across multiple servers to ensure an even distribution of transaction load can be balanced to deliver maximum performance for high end users.