Navigational Accesses in a Temporal Object Model

The management of temporal data is a crucial requirement for many data intensive applications. A considerable research e ort have been devoted in the past years to query languages for temporal data in the context of the relational model. Recently, temporal object-oriented data models have been proposed. In this paper, we focus on the navigational approach to querying object-oriented databases and show how this approach can be extended to a temporal context. In particular, we address issues related to the correctness of such navigational accesses.