Bottom-up scientific databases based on sets and their top-down usage

  • Authors:

  • Mitsuru Nakata;Teruhisa Hochin;Tatsuo Tsuji

  • Affiliations:

  • Graduate School of Engineering, Fukui University, Fukui, Japan;Department of Information Science, Fukui University, Fukui, Japan;Department of Information Science, Fukui University, Fukui, Japan

  • Venue:
  • IDEAS'97 Proceedings of the 1997 international conference on International database engineering and applications symposium
  • Year:
  • 1997

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Abstract

This paper proposes a data model for a scientific database, Scientific applications require the DBMS support of the discovery process. Un-structured or semi-structured scientific data is required to be stored into databases, and manipulated as structured data. To meet these requirements, the proposed data model has the following features. It is based on the concept of sets in order that a database has flexible structure, a perspective of an object is represented with the subset of the object, and a collection of objects are naturally represented. A data value is the most principal element for expressing polymorphism, and sharing data flexibly. A preliminary database is adopted in order to store an un-structured or semi-structured data without any definition. The information of data called shape, which varies according to creating or updating of data, is introduced to query on a database presented here as on ordinary ones. We present the application of the model to the archeological data in order to demonstrate its advantages.