--- a/model/glossary.html	Tue Mar 06 14:55:37 2012 +0000
+++ b/model/glossary.html	Tue Mar 06 15:02:52 2012 +0000
@@ -28,7 +28,7 @@
 </span>
 
 <span class="glossary" id="glossary-derivation">  
-A <dfn id="concept-derivation">derivation</dfn>  is anything that transforms an entity into another, that constructs an entity from another, or that updates an entity, resulting in a new one.</span>
+A <dfn id="concept-derivation">derivation</dfn>  is a transformation of an entity into another, a construction of an entity into another, or an update of an entity, resulting in a new one.</span>
 
 
 

--- a/model/glossary.js	Tue Mar 06 14:55:37 2012 +0000
+++ b/model/glossary.js	Tue Mar 06 15:02:52 2012 +0000
@@ -35,7 +35,7 @@
 '</span> ' + 
 ' ' + 
 '<span class="glossary" id="glossary-derivation">   ' + 
-'A <dfn id="concept-derivation">derivation</dfn>  is anything that transforms an entity into another, that constructs an entity from another, or that updates an entity, resulting in a new one.</span> ' + 
+'A <dfn id="concept-derivation">derivation</dfn>  is a transformation of an entity into another, a construction of an entity from another, or an update of an entity, resulting in a new one.</span> ' + 
 ' ' + 
 ' ' + 
 ' ' +