DSA envisages a general measurement data system that includes the following: • Collection of data from different sources, including: - Automatic measurement stations (e.g. gamma radiation) – Laboratory measurements (e.g. air filter samples) - External national and international data sources• Export of data in relevant standard formats• Normalisation, validation and quality assurance of measurement data• Processing data through analyses and presentation of results• Storing data with sufficient traceability history• Map-based visualisation with support for: - Different layers and theme views - Time series and historical analyses - Filtering and notification based on the threshold values• Access management and role-based use (operative operation, analysis, management and contingency)• High availability and robustness, especially in crisis and contingency situationsSe attached document for a more detailed description of the need, data basis and principle sketch for the wanted solution. This is a market dialogue and not a competition. It is voluntary to provide input.