It seems that they are trying to develop a model where object behavior can be restricted or modified depending on its uses. In fact, it is a quite important pro

It seems that they are trying to develop a model where object behavior can be restricted or modified depending on its uses. In fact, it is a quite important problem and there exist many general models and specific techniques which tackle different aspects of this problem, for example: o Aspect-oriented: Additional behavior can be injected into classes https://en.wikipedia.org/wiki/Aspect-oriented_programming https://en.wikipedia.org/wiki/Aspect-oriented_programming o Context-oriented: Behavior depends on the context http://www.jot.fm/issues/issue_2008_03/article4/ http://www.jot.fm/issues/issue_2008_03/article4/ o Concept-oriented: Behavior is split between references and objects http://conceptoriented.org/ http://conceptoriented.org/ o Subject-oriented: Behavior is split between objects and subjective perceptions (subjects) https://en.wikipedia.org/wiki/Subject-oriented_programming https://en.wikipedia.org/wiki/Subject-oriented_programming