Fundamental fuzzy relation concepts of a D.S.S. for the estimation of natural disasters' risk (The case of a trapezoidal membership function)

Physically and operationally, the decision support system consists of two parts. The risk estimation part is more straightforward and it was developed in MS-Access in order to have the ability to store and use a vast amount of data. The forecasting part was developed in a decision support system shell, in order to have a sound Inference mechanism.