Abstract
Abstract The purpose of the article is to present the research on method of the quality evaluation of published open geospatial data and its implementation in Ukraine. The method of the quality evaluation of open geospatial data considers the international standard ISO 19157 “Geographic information. Data quality”. This method is to determine the number of points or levels (maximum – 5). The research was carried out for the evaluation of open geoinformation resources for production of geospatial datasets, as defined in the Ukrainian Law on NSDI. The authors evaluated the quality of 142 open geoinformation resources and other information resources (materials) for the production and updating of 34 geospatial datasets for the development of NSDI in Ukraine. The authors present the example of the quality evaluation of geospatial data for datasets: “State Geodetic Reference Coordinate System UCS-2000”, “State Geodetic Network”, “Geographical Names” and “Administrative Units” because they are the components of the Core Reference Dataset of NSDI. Limitations of the research were determined by the adopted the Law of Ukraine “On National Spatial Data Infrastructure” and the Order for NSDI functioning in Ukraine and the requirements of the international standard ISO 19157 “Geographic information. Data quality”. The results of the research will be employed to evaluate the quality of NSDI implementation in Ukraine. The proposed method allows evaluating the quality of open geospatial dataset before using them for analysis and modeling of terrain, phenomena. This method takes into account the quality of geospatial data, and its related requirements for their production, updating and publication.
Highlights
The Spatial Data Infrastructure (SDI) is evolving into the Geospatial Knowledge Infrastructure (GKI), which is a hallmark of the Fourth Industrial Revolution (4IR), where people exploit to the maximum the possibilities of the digital world
The adopted Order for National Spatial Data Infrastructure” (NSDI) functioning in Ukraine determined the general requirements for the organization of production/updating of geospatial data, which should minimize duplication of work using geographic information services such as WMS and WFS (The Order of Functioning of The National Spatial Data Infrastructure, no. 532, 2021)
The geospatial knowledge infrastructure depends on the following of the principles of NSDI, the quality of implementation and realization of this policy in the state
Summary
The Spatial Data Infrastructure (SDI) is evolving into the Geospatial Knowledge Infrastructure (GKI), which is a hallmark of the Fourth Industrial Revolution (4IR), where people exploit to the maximum the possibilities of the digital world. Data is not the end product and its true value lies in gaining knowledge for satisfying the needs of society. The openness of official data will ensure information interaction between data owners and users, between states and international organizations (Lindgren et al, 2016). It is essential that open spatial data is official and high quality for use in other information and geoinformation systems for processing, analysis, monitoring of the state of the environment and production of new models for forecasting phenomena
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