The National Land Survey of Finland has renewed its topographic data management system. The new system is built on QGIS and utilizes PostGIS databases for data storage. The development process has taken four years, and the first implementation will take place this spring. The system will be used by over 100 operators, providing them with tools for data management. The goals of the renewal are:

• Utilization of new technologies and standards
• Advancement in the transition from producing map data to producing spatial data
• Enhancement of the quality and timeliness of data
• Enhancement of the production through automation and better tools

During the first two years of development the focus was on concurrent data management and on the integration of the stereo mapping tools (proprietary). Data management has been implemented as a separate backend service for QGIS. After that, we have implemented quality assurance tools to maintain the logical consistency of the features concerning attributes, geometries, and topology. Furthermore, we have implemented tools for handling elevations and made several improvements to facilitate better data maintenance.

In this presentation, I will discuss the solutions implemented in the new system, including quality management tools and topological editing features. I will explain how these tools enhance the accuracy and reliability of maintaining topographic data using QGIS. Additionally, I will share the successes and challenges we have encountered during the development process and in the early stages of production use.