> > All this hierarchical trees are inter-connected, and > > you have better replacing "hierarchical traits" with "named traits" (ie > > predicates). > >I agree with that view. An application system is a collection of trees, >each representing a special concept. Only the last sentence is unclear >to me; a "whole" model names its "part" models _and_ is hierarchical.
I just meant that a hierarchical tree is a set of traits between nodes. This traits are not labelled since they all mean "son of". A semantic network is a set of labelled traits, with labels of the kind "is a", "is part of"... Thus, building a hierarchy and building a semantic network is the same kind of job, but the hierarchy demands two (huge) constraints : there is a single root node, and nodes have a single kind of label. These constraints usually can't be satisfied, so the migration from genuine hierarchy to semantic network usually occur. Regards, Philippe - If you have any questions about using this list, please send a message to d.lloyd at openehr.org
