A Temporal Database Management for Medical and Health Care Systems

This paper describes a new architecture (based on the relational data model) for the handling of time-varying data which is well suited for medical applications. This model also provides a heterogeneous distributed capability such that current and historical data may be stored on a network of different computing facilities. We have prototyped such a temporal data management system under the UNIX operating system using the C programming language which interfaces with the commercial relational database management system - Ingres.