The choice of the final solution naturally depends on the
decision maker. In our case we have shown four different scenarios
representing the four different kinds of requirements that the
decision maker may make.All the possibilities are naturally not
considered, because the model allows introduction of additional
constraints at any time resulting with new compromise solutions.
Some requirements could(due to other constraints)lead to a
situation where there is no solution,but it would only mean that
the additional constraints are‘‘too hard’’and that it is necessary to
intervene in the model by moderating some of the requirements