Modelling of set membership: The notion and the issues

摘要

Although high-level data abstractions have been recognized as very important for modelling complex applications, one abstraction that is not widely incorporated into design methodologies is that of sets. This research analyzes sets as abstractions of individual members, in order to develop a list of criteria for a ‘good’ set modelling construct, referred to as a grouping. In addition, ways in which the member-of relationship, mapping individual members onto a set can be enriched with additional semantics, are proposed within an object-oriented context.