BDOT500 database of physical topographic objects — basic qualitative analysis
More details
Hide details
1
Uniwersytet Rolniczy w Krakowie
Katedra Geodezji, Poland
Publication date: 2015-03-31
Geomatics, Landmanagement and Landscape 2015;(1)
KEYWORDS
ABSTRACT
Official databases, which gather spatial data, should include sets of metadata, which serve to
describe the information within. The fundamental element of a metadata set consists in the
features describing the quality and relative importance of geospatial data. In the present work,
we propose a method for the evaluation of database quality pertaining to databases of topographic objects (BDOT500) based on four criteria: location accuracy, completeness, validity (in
the sense of being up to date) and logical coherence. Overall quality evaluation of the BDOT500
database was carried out using the calculation of two estimation factors: average absolute value
and the coefficient of average variation. The method described herein is a useful device, which
allows for a quick and credible evaluation of the BDOT500 data quality at a basic level. Applying
the method does not require involving any additional means, as all the necessary information is
already recorded inside the database.