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TEMPOS: A Platform for Developing Temporal Applications on top of Object DBMS (2001)
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@MISC{Dumas01tempos:a,
author = {Marlon Dumas and Pierre-claude Scholl and Copyright C Marlon Dumas and Marie-Christine Fauvet and Marie-christine Fauvet and Christian S. Jensen (codirector and Michael H. Bohlen and Heidi Gregersen and Dieter Pfoser and Simonas Saltenis and Janne Skyt and Giedrius Slivinskas and Kristian Torp and Richard T. Snodgrass (codirector and Bongki Moon and Thomas Myrach and Universty Of Bern and Michael D. Soo and Amazon. Com and Andreas Steiner Timeconsult},
title = {TEMPOS: A Platform for Developing Temporal Applications on top of Object DBMS},
year = {2001}
}
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Abstract
This paper presents TEMPOS 1 , a set of models and languages intended to seamlessly extend the ODMG object database standard with temporal functionalities. The proposed models exploit objectoriented 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 former one, namely TEMPOQL, is an extension of OQL supporting the manipulation of histories regardless of their representations, by composition of functional constructs. Thereby, the abstraction principle of object-orientation is fulfilled, and the functional nature of OQL is enforced. The visual browser on the other hand, offers operators which support 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. TEMPOS models and languages have been fully formalized both at the syntactical and the semantical level and have been implemented on top of the O 2 DBMS. Their suitability with regard to applications' requirements has been validated through concrete case studies. Index terms: temporal databases, temporal data models, temporal query languages, time representation, upward compatibility, object-oriented databases, ODMG. 1
Keyphrases
temporal application object dbms visual browser functional construct temporal data model functional nature representation independence concrete case study design criterion temporal database abstraction principle tempo model several time-related interactive navigation task temporal functionality temporal attribute legacy code migration index term upward compatibility time representation temporal data complementary way semantical level query language odmg object database standard object-oriented database temporal query language
