Implementation of Valid-time Indeterminacy in Temporal Clinical Databases

*Tuan Anh Duong
Faculty of Computer Science and Engineering, HoChiMinh City

Le Van Quoc Anh
Department of Information Technology, HoChiMinh City University of Transportation

Pham Van Chung
Department of Information, HoChiMinh City Industry University

Abstract
Temporal indeterminacy is an inherent problem which arises when capturing and manipulating temporal data in many application areas. However, the issue of implementing a temporal query language that can support temporal indeterminacy has not been addressed so far. In this paper, we represent our approach to implementing valid-time indeterminacy in temporal clinical database systems on top of a commercial relational DBMS