RUP still defines artifacts, but the work product concept has been introduced in RMC as a generalization to include and support two more work product types: deliverables and outcomes.

The atomic variable classes can be thought of as a generalization of volatile variables, extending the concept of volatile variables to support atomic conditional compare-and-set updates.

The concept of the adjacent relation is the generalization and Abstraction of real life, which is processed by legal thinking and more Abstract than real life.