To explore this possibility, we will again examine several examples. Each example will illustrate some specific facet (or several facets)of ill-structuredhess. Analysis of these facets will provide us with a positive characterization of ISP% rescuing them from the status of a residual category. With this positive characterization in hami, we will be in a better position to set forth the capabilities a problem solving system must have in order to be able to attack problems that are initially ill structured i:~ one or more ways.