Information processing system and classification method

A classifying method comprising:

• acquiring, based on information regarding one or more relationships between a plurality of elements that constitute a system, for each of first elements to be classified, a set of second elements reachable to the first element via an arbitrary number of the relationships, the first elements and the second elements being included in the plurality of elements;
• and
• classifying each of the first elements into one of a plurality of roles, based on the set associated with each of the first elements, and outputting a classification result.

A non-transitory computer readable storage medium storing a program causing a computer to execute processing of:

• acquiring, based on information regarding one or more relationships between a plurality of elements that constitute a system, for each of first elements to be classified, a set of second elements reachable to the first element via an arbitrary number of the relationships, the first elements and the second elements being included in the plurality of elements;
• and
• classifying each of the first elements into one of a plurality of roles, based on the set associated with each of the first elements, and outputting a classification result.