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International Symposium on Spatial Databases

SSD 1995: Advances in Spatial Databases pp 368–384Cite as

Comparison and benchmarks for import of VPF geographic data from object-oriented and relational database files

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Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 951))

Abstract

This paper presents some of the advantages accrued from adopting an object-oriented (OO) data model versus the relational data model when representing and managing a Vector Product Format (VPF) database, specifically the Digital Nautical Chart (DNC) for Norfolk Harbor, Virginia. An OO-DNC prototype viewer capable of importing, displaying and editing DNC feature data both from relational-format and from object-format files was developed using the Smalltalk language. The differences in performance between the relational import and the object import were then compared across several DNC coverages. The results indicate a significant increase in performance when adopting the OO paradigm; specifically the OO-DNC viewer imported feature data from object-format files from 6 to 15 times faster than from the relational-format files. It should be noted that these figures are NOT the result of comparing a commercial object-oriented database managment system (ODBMS) against a commercial relational database management system (RDBMS), but rather the result of reading both relational-oriented and object-oriented data file formats using an object-oriented program written in Smalltalk. Nevertheless, we feel these results indicate a significant functionality and performance improvement can be obtained by using an OO framework for the data and software.

This work has been sponsored by the U.S. Defense Mapping Agency and the U.S. Naval Research Laboratory.

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Author information

Authors and Affiliations

  1. GeoPlan Center, University of Florida, 431 Arch Building, 32611, Gainesville, FL, USA

    David Arctur, Eman Anwar, John Alexander & Sharma Chakravarthy

  2. Mapping, Charting and Geodesy Branch, Code 7441 U.S. Naval Research Laboratory, Stennis Space Center, 39529, MS, USA

    Miyi Chung, Maria Cobb & Kevin Shaw

Authors
  1. David Arctur
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  2. Eman Anwar
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  3. John Alexander
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  4. Sharma Chakravarthy
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  5. Miyi Chung
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  6. Maria Cobb
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  7. Kevin Shaw
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Editor information

Max J. Egenhofer John R. Herring

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© 1995 Springer-Verlag Berlin Heidelberg

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Arctur, D. et al. (1995). Comparison and benchmarks for import of VPF geographic data from object-oriented and relational database files. In: Egenhofer, M.J., Herring, J.R. (eds) Advances in Spatial Databases. SSD 1995. Lecture Notes in Computer Science, vol 951. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-60159-7_22

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  • DOI: https://doi.org/10.1007/3-540-60159-7_22

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-60159-3

  • Online ISBN: 978-3-540-49536-9

  • eBook Packages: Springer Book Archive

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