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<p><b>Abstract</b>—This paper presents T<scp>empos</scp>: a set of models and languages supporting the manipulation of temporal data on top of object DBMS. The proposed models exploit object-oriented technology to meet some important, yet traditionally neglected design criteria related to legacy code migration and representation independence. Two complementary ways for accessing temporal data are offered: a query language and a visual browser. The query language, namely T<scp>emp</scp>OQL, is an extension of OQL supporting the manipulation of histories regardless of their representations, through fully composable functional operators. The visual browser offers operators that facilitate several time-related interactive navigation tasks, such as studying a snapshot of a collection of objects at a given instant, or detecting and examining changes within temporal attributes and relationships. T<scp>empos</scp> models and languages have been formalized both at the syntactical and the semantical level and have been implemented on top of an object DBMS. The suitability of the proposals with regard to applications' requirements has been validated through concrete case studies.</p>
Temporal database, temporal data model, temporal query language, time representation, object database.
Marlon Dumas, Marie-Christine Fauvet, Pierre-Claude Scholl, "TEMPOS: A Platform for Developing Temporal Applications on Top of Object DBMS", IEEE Transactions on Knowledge & Data Engineering, vol. 16, no. , pp. 354-374, March 2004, doi:10.1109/TKDE.2003.1262189
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