GMAA: A DSS Based on the Decision Analysis Methodology - Application Survey and Further Developments - Efficient Decision Support Systems: Practice and Challenges from Current to Future - page 268

 Fertilizer (800 kg of fertilizer added to the lake between April and July 1987-90).

 Food ban (fish consumption ban when 137 Cs content in fish is >1000 Bq/kg).

 Lake liming (15 tonnes of lime added to the lake in April 1987).

 Sediment removal (250,000m 2 of sediments down to a depth of 10cm removed from the

lake, between May-June 1990, i.e., 125,000 m 2 /month).

 Wetland liming (30 tonnes of lime added to the catchment in May 1987).

Fig. 1. Objectives hierarchy for lake Svyatoye
The impacts/performances of the intervention strategies were then established in terms of
the attributes associated with the lowest-level objectives and described under uncertainty by
vectors of values (see Table 3 in Ríos- Insua et al., 2006).
DM preferences were elicited according to DA cycle. An imprecise component utility
function was assessed for each attribute, representing DM preferences concerning the
respective possible attribute impacts. Fig. 2 shows the class of utility functions for the Dose to
Critical Individuals .

Fig. 2. Classes of utility functions for Dose to Critical Individuals