--- a/model/ProvenanceModel.html	Thu Sep 08 11:32:21 2011 +0100
+++ b/model/ProvenanceModel.html	Thu Sep 08 11:33:34 2011 +0100
@@ -153,6 +153,11 @@
 
 <p>When we talk about things in the world in natural language and even when we assign identifiers, we are often imprecise in ways that make it difficult to clearly and unambiguously report provenance: a resource with a URL may be understood as referring to a report available at that URL, the version of the report available there today, the report independent of where it is hosted over time, etc.</p>
 
+
+<div class='note'>This is the single most important issue IMO: we hit readers with this "characterised thing" which is unexpected. We need to be absolutely clear about it...
+  <br/>ok, so it seems that characterized thing is introduced to deal with (1) imprecision, (2) disagreement amongst different "observers" of the same data-related events. I don't think this is about "disambiguation". It's about accommmodating different perspectives on the what is the same abstract "thing".  This interpretation fits with the example:  "different users may take different perspective..."</div>
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+
 <p>Hence, to disambiguate things and their situation in the world as perceived by us, we introduce the concept <dfn id="concept-characterized-thing">characterized thing</dfn>, which refers to a thing and its situation in the world, as characterized by someone.</p>
 
 <div class="xmpl">
@@ -164,6 +169,9 @@
 <li>the report independent of where it is hosted over time.</li></ul></div>
 
 
+<div class='note'>can we follow through from the example. thare three perspectives, possibly by just one observer or multiple ones. but <strong>why is it so important for reporting provenance</strong> that this distinction is made?  I feel we need to connect this approach to provenance recording strongly and right away</div>
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+
 <p>We do not assume that any characterization is more important than any other, and in fact, it is possible to describe the processing that occurred for the report to be commissioned, for individual versions to be created, for those versions to be published at the given URL, etc., each via a different characterized thing that unambiguously characterizes the report appropriately.</p>
 
 <p>In the world, <dfn id="concept-activity">activities</dfn> involve