MOTOS: a framework for dynamic traffic management

In order to satisfy the requirements of the transport system two computer-based technologies were combined. These are the open systems environments defined by ANSA and the DIOMEDES real-time distributed database management systems. ANSA is a framework for the design and implementation of distributed computer systems supporting networked information services. This framework covers issues including the structure of new systems, how to incorporate existing (legacy) systems, and how to handle security and naming procedures. DIOMEDES is a distributed, replicated, real-time database, originally using transputers across a very high specification fibre-optic network. These two technologies are summarised. ANSA has been used in the MOTOS (Management of Traffic in Open Systems) project to provide a structured open system environment within which the distributed database can be implemented