Since safety and security, and especially decisions with respect to safety and security are multidisciplinary in nature, systems and tools that have to support these decisions must incorporate several aspects. Multicriteria decision analysis and the related methods appear to be the ideal framework to support such complex decisions. Furthermore, decisions to be made often involve multiple stakeholders, therefore a direct extension of the decision support tools towards multistakeholder (or group) decision support is also essential.
Depending on the availability of the stakeholders we use either the ARGUS (Achieving Respect for Grades Using ordinal Scales) or AURORA (Aggregating Unicriterion Rankings into One RAnking) multicriteria method. Both methods deliver a ranking of the possible policy options concerning safety and security measures. In order to support multistakehoder decisions we use group decision support software based on the ARGUS-GDSS method.
More information to close the gap between real-world decision-makers and theoretical decision-model builders, as well as two decision making tools (also on CD-ROM), ARGUS and KISS, is provided in the publication by De Keyser and Springael (2010): "Why don't we KISS" (University Press Antwerp, ISBN: 978 90 5487 613 7)