TY - JOUR N2 - For more than ten years a dynamic and intensive development has been observed in spatial information technology combining elements of geoinformatics with data from various sources in order to create elaborate, often interdisciplinary and multifunctional compilations. The progressing implementation of IT solutions with reference to resources and related trends to make public infor-mation that is useful to a wide group of recipients are reflected in multimedia information materials of many public institutions and private businesses. An example of using electronic technologies in the presentation of spatial data of national parks is widely available geoportals, interactive maps and other cartographic or paracartographic visualizations offering various tools allowing the utilisation of spatial information resources. This publication aims at a multilevel analysis of the availability of network services, as defined in Directive 2007/2/EC of the European Parliament and of the Council of 14 March 2007 establishing an Infrastructure for Spatial Information in the European Community,to all the existing geoportals of Polish national parks and a review of additional functions offered by the map services of all 23 Polish national parks that may be useful to users. As a result of research, tables and descriptions comparing the functions of the analysed geoportals were compiled and additional practical tools observed in other services were described. In addition, based on the comparisons, a concept of geoportal optimization was developed taking into account all categories of spatial information services and optional functions. L1 - http://journals.pan.pl/Content/116642/PDF/Wojcik%20Len%20et%20al%20590.pdf L2 - http://journals.pan.pl/Content/116642 PY - 2020 EP - 206 DO - 10.24425/jwld.2020.133495 KW - case study KW - geoportals of protected areas KW - geopolitics development optimization KW - national parks KW - Polish national parks A1 - Wójcik-Leń, Justyna A1 - Maciąg, Michał A1 - Mazur, Klaudia A1 - Leń, Przemysław PB - Polish Academy of Sciences; Institute of Technology and Life Sciences - National Research Institute VL - No 45 DA - 2020.07.16 T1 - The concept of optimising the development of geoportals of protected areas using the example of Polish national parks – A case study SP - 198 UR - http://journals.pan.pl/dlibra/publication/edition/116642 T2 - Journal of Water and Land Development ER -