Schema Evolution and Reproducibility of Long-term Hydrographic Data Sets at the IOW

Auge, Tanja and Manthey, Erik and Jürgensmann, Susanne and Feistel, Susanne and Heuer, Andreas (2020) Schema Evolution and Reproducibility of Long-term Hydrographic Data Sets at the IOW. In: LWDA 2020, 9-11 Sep 2020, Germany.

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Abstract

National and international exploration of the Baltic Sea ecosystem can be traced back to the 19th century. In its quite long history, the Leibniz Institute for Baltic Sea Research Warnemünde (IOW) is the only research institution in Germany that has made interdisciplinary research of the Baltic Sea its central mission. The IOW hosts data from more than 130 years of research work. Using the example of hydrographic datasets that have been created over a period of about 50 years, this paper examines changes in the data and the associated schemes that have resulted from the continuous development and refinement of measurement methods over time. The paper focuses on the schema development operators: What kind of schema development has taken places over the years, and what are the important basic schema development operators that can be identified? It classifies well-known schema evolution operators which can be expressed as schema mappings, and defines two new operators for merging and splitting attributes, up to now not considered in other research works. These operators have proven to be essential for development of a new universal schema for the central oceanographic database on the IOW – the IOWDB.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	Autorenart > DBIS-Publikationen Forschungsthemen > Schemaevolution
Depositing User:	Dbis Admin
Date Deposited:	07 Sep 2020 12:21
Last Modified:	16 Feb 2021 10:20
URI:	https://eprints.dbis.informatik.uni-rostock.de/id/eprint/1029

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