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Spatial Metadata Usability Evaluation

Geospatial Open Data Usage and Metadata Quality

Institute for Applied Mathematics and Information Technologies National Research Council, 16149 Genoa, Italy
Instituto Nacional de Pesquisas Espaciais, Sao Jose dos Campos 12230-081, Brazil
Author to whom correspondence should be addressed.
ISPRS Int. J. Geo-Inf. 2021, 10(1), 30;
Received: 27 November 2020 / Revised: 29 December 2020 / Accepted: 11 January 2021 / Published: 13 January 2021
(This article belongs to the Special Issue Geospatial Metadata)
The Open Government Data portals (OGD), thanks to the presence of thousands of geo-referenced datasets, containing spatial information are of extreme interest for any analysis or process relating to the territory. For this to happen, users must be enabled to access these datasets and reuse them. An element often considered as hindering the full dissemination of OGD data is the quality of their metadata. Starting from an experimental investigation conducted on over 160,000 geospatial datasets belonging to six national and international OGD portals, this work has as its first objective to provide an overview of the usage of these portals measured in terms of datasets views and downloads. Furthermore, to assess the possible influence of the quality of the metadata on the use of geospatial datasets, an assessment of the metadata for each dataset was carried out, and the correlation between these two variables was measured. The results obtained showed a significant underutilization of geospatial datasets and a generally poor quality of their metadata. In addition, a weak correlation was found between the use and quality of the metadata, not such as to assert with certainty that the latter is a determining factor of the former. View Full-Text
Keywords: geospatial open data; datasets usage; metadata quality geospatial open data; datasets usage; metadata quality
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MDPI and ACS Style

Quarati, A.; De Martino, M.; Rosim, S. Geospatial Open Data Usage and Metadata Quality. ISPRS Int. J. Geo-Inf. 2021, 10, 30.

AMA Style

Quarati A, De Martino M, Rosim S. Geospatial Open Data Usage and Metadata Quality. ISPRS International Journal of Geo-Information. 2021; 10(1):30.

Chicago/Turabian Style

Quarati, Alfonso, Monica De Martino, and Sergio Rosim. 2021. "Geospatial Open Data Usage and Metadata Quality" ISPRS International Journal of Geo-Information 10, no. 1: 30.

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