User Generate Spatial Content in Land Administration and Cadastre: Types and Usage

Nowadays, one of the most important factor for better land management are the land administration systems. Therefore, it is necessary accurate and up-to-date data on these systems. Common data collection methods, such as photogrammetry and remote sensing, are usually cost-effective and somewhat time-consuming. So, it is necessary to find new methods for data collection in order to keep land administration systems up to date. One of the new methods for production and collection data whit rapid growth is user generate spatial content. Low cost, high collection rates and many other advantages have been persuaded researchers use this type of data in many fields, such as land administration and cadastral systems. This research has a overview for the application of user generate spatial content in the land administration and cadastral systems. This overview is in order to provide a proper categorization of these research and identify the fields require further research. We categorized studies of the use of user generate spatial content in land  administration into four categories. These four categories are validation, cadastral maps, land use and land cover maps and other research. According to the results, studies in all four categories are still not sufficient  and require more studies but the priority of some fields for research is more than others. These fields will be referred in the research.