node of a lower level ontology or, failing that, creating
&gt;an intermediate structure of concepts between a node in Sowa's ontology and
&gt;the highest level node in the lower level ontology.  Accordingly, I haven't
&gt;altered the essential integrity of the lower level ontologies in
&gt;merging/aligning them with the upper level.  In general, I would prefer a
&gt;"reflective equilibrium" approach to ontology design.  Lower level concepts
&gt;will cast light on the question of which upper level concepts n