Ajvazi , BesimLoshi , FisnikMárkus, Béla2016-09-10Acta Geographica Debrecina Landscape & Environment series, Vol. 10 No. 3-4 (2016) , 153-1601789-4921https://hdl.handle.net/2437/317451In the land surveying profession fast changes have been taking place in the last fifty years. Technological changes are generated by the Information and Communication Technologies; the analogue – digital trends; the automatic data acquisition methods replace manual ones; instead of two-dimensional base maps we use dynamic spatial databases more and more integrated into a global data infrastructure. However, these changes cause impacts also on scientific level. The traditional top-down approach substituted by bottom-up methodologies; in many cases the point-by-point measurement is changed by 3D laserscanning or Unmanned Aerial Systems, which produces huge amount of data, but it needs new algorithms for information extraction; instead of a simple data provision land surveyors support complex spatial decisions. The paper is dealing with some aspects of these changes. In the first chapter the authors would like to highlight the “data-information-knowledge” relations and the importance of changes in professional education. The second chapter gives an example of the benefits of a Global Spatial Data Infrastructure in spatial decision support. Finally we introduce a new concept (Building Information Modelling) in modelling the real world. However, until now BIM is used in building construction industry, it can can be a paradigm shift in geospatial information management in general.application/pdfLand surveyingGeomatics engineeringSpatial decision supportBuilding information modellingfolyóiratcikkOpen Accesshttps://doi.org/10.21120/LE/10/3-4/8Acta Geographica Debrecina Landscape & Environment series3-410Landsc. environ.1789-7556