Agnieszka Chojka
Assistant Professor
University of Warmia and Mazury in Olsztyn
Poland

Biography
Agnieszka Chojka is an associate professor in the Department of Land Surveying and Geomatics at the University of Warmia and Mazury in Olsztyn (Poland). She obtained her MSc in Computer Science Engineer (Computer Graphics) from the Technical University of Lodz in 2003 and her PhD in Geodesy and Cartography (Geoinformatics) from the University of Warmia and Mazury in Olsztyn in 2008. She is closely associated with many companies and government institutions as a consultant and an expert in projects connected with INSPIRE implementation and NSDI building in Poland. A member of Polish Association for Spatial Information and European Geoscience Union.

Abstract
INSPIRE Application Schemas Complexity

Establishing an Infrastructure for Spatial Information in Europe requires harmonising different spatial data sets and thereby ensuring their logical and semantic coherence. The process of harmonisation needs to adjust existing spatial data structures to INSPIRE guidelines and recommendations, particularly INSPIRE data specifications. In these documents data structures are described with the use of UML and GML application schemas. Incorrect or too complex data structures have direct influence on the ability to generate GML data sets with concrete data (objects) and thereby can cause various problems and anomalies at the data production stage. The principal subject of this research is to measure the complexity of UML and GML application schemas, an integral parts of INSPIRE data specifications for the various spatial data themes. It is also assumed to analyse existing complexity measures of data structures expressed in UML and XML Schema and to examine a possibility of various tools usage to measure a complexity of UML and GML application schemas.