Something I haven't seen mentioned in this discussion so far is the Data, Context, Interaction (DCI) pattern. https://en.wikipedia.org/wiki/Data,_Context,_and_

Something I haven't seen mentioned in this discussion so far is the Data, Context, Interaction (DCI) pattern. https://en.wikipedia.org/wiki/Data,_Context,_and_Interaction https://en.wikipedia.org/wiki/Data,_Context,_and_Interaction As mentioned at points in this thread, some objects need different behavior based on their context. DCI is a thought provoking way to represent that (though one that not in common use and that is often described as "being done wrong" on the object composition mailing list[1]). [1]: https://groups.google.com/forum/#!forum/object-composition https://groups.google.com/forum/#!forum/object-composition