The NAtional Forest Inventory Data Analysis System (NAFIDAS) is a multitier application to store and analyse Swiss National Forest Inventory (NFI) data. It provides a basis to publish findings about the current state and development of the Swiss forest on a regional and national level. The system supports the complete chain of data processing of a sample-based forest inventory, starting with the upload of field data and ending with the publication of tables and maps on the Internet. It also provides the necessary tools for administering and maintaining the system and offers access to lists of variables, derivations and dependencies, as well as to documentation of code and production processes. NAFIDAS creates concise result tables and maps with reproducible statistics on NFI data including standard errors and allows the publication of multilingual results based on the most recent NFI data. The efficient long-term storage facilities of raw and derived inventory data form   the backbone of the system.
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