In this way of classification, there are three levels of risk class branching,
this multi-level way is not practical for DSS development process, since the
DSS user will have to make three selections to select a single case; for this
reason, the researcher proposed a simplified single-level traditional
classification in addition to other six methods of risk classification, each of
them consists of a single level of branching, providing a single selection
choice for each method. These proposed classification methods are: