MOIRA DSS – Architecture, Model Integration and User Interface Design

The acronym MOIRA stands for “A Model-Based Computerised System For Management Support To Identify Optimal Remedial Strategies For Restoring Radionuclide Contaminated Aquatic Ecosystems And Drainage Areas” (EC projects MOIRA, COMETES, EVANET-HYDRA). MOIRA system is an integrated friendly tool for the users with different level of responsibility in decision-making and different experience in computers, environmental modelling and radioecology. With MOIRA GUI the decision-maker works with the custom things – maps, tables, graphs, reports. User can be guided through all the steps of the decision-making or can start from the direct request of the data of interest (it could be for example “ranking of the alternative strategies” for the top-level decision maker or “concentration of Sr-90 in the water” – for expert in radioecology). MOIRA system is developed using component architecture by integration of the components such as GIS (MapInfo), models (.exe, Powersim®-based, MapInfo-based) and Muli-Attribute Analysis Module (.exe) with the MOIRA Software Framework that provides kernel and GUI functionality of the system. To support quick development of the system by distributed international team same models can be used both in the frame of MOIRA and standalone. Exchanging of data sets between system kernel and the models as the text files supports this flexibility. The model’s developer decides format of the file and kernel adapts itself to it using data set description. Each model can be supplied also with the files (in the same format as input ones) containing default, minimum and maximum values for its input parameters. These files compose the contents of the Reference Data Base (RefDB) used to validate user’s input and to help inexperienced users with the default values for the unknown parameters.