--- a/model/ProvenanceModel.html Thu Nov 24 21:47:38 2011 +0000
+++ b/model/ProvenanceModel.html Thu Nov 24 21:56:02 2011 +0000
@@ -1545,14 +1545,14 @@
-->
-<p>Hence, given a precision axis, with values <em>precise</em> and <em>imprecise</em>, and an activity axis, with values <em>one-activity</em> and <em>n-activities</em>, we can then form a matrix of possible derivations, precise or imprecise, or corresponding to one activity or n activities.
+<p>Hence, given a precision axis, with values <em>precise</em> and <em>imprecise</em>, and an activity axis, with values <em>one activity</em> and <em>n activities</em>, we can then form a matrix of possible derivations, precise or imprecise, or corresponding to one activity or n activities.
Out of the four possibilities, PROV-DM offers three forms of derivation, while the fourth one is not meaningful. The following table summarises names for the three kinds of derivation, which we then explain.</p>
<div class="table">
<table border="1" align="center">
<tr><td colspan=2 rowspan=2></td><td colspan=2>precision axis</td></tr>
<tr><td>precise</td><td>imprecise</td></tr>
-<tr><td rowspan=2>activity<br>axis</td><td>one-activity</td><td>precise-1 derivation</td><td>imprecise-1 derivation</td></tr>
-<tr><td>n-activities</td><td>---</td><td>imprecise-n derivation</td></tr>
+<tr><td rowspan=2>activity<br>axis</td><td>one activity</td><td>precise-1 derivation</td><td>imprecise-1 derivation</td></tr>
+<tr><td>n activities</td><td>---</td><td>imprecise-n derivation</td></tr>
<caption>PROV-DM Derivation Type Summary</caption>
</table>
</div>
@@ -1692,9 +1692,9 @@
which at the minimum implies temporal ordering, specified as follows.</p>
First, we consider one-activity derivations.</p>
-<div class='interpretation' id='derivation-use-generation-ordering'>Given an activity record identified by <span class="name">a</span>, entity records identified by <span class="name">e1</span> and <span class="name">e2</span>, generation record identified by <span class="name">g2</span>, and usage record identified by <span class="name">u1</span>, <span class='conditional'>if</span> the record <span class="name">wasDerivedFrom(e2,e1,a,g2,u1,attrs)</span>
+<div class='interpretation' id='derivation-usage-generation-ordering'>Given an activity record identified by <span class="name">a</span>, entity records identified by <span class="name">e1</span> and <span class="name">e2</span>, generation record identified by <span class="name">g2</span>, and usage record identified by <span class="name">u1</span>, <span class='conditional'>if</span> the record <span class="name">wasDerivedFrom(e2,e1,a,g2,u1,attrs)</span>
or <span class="name">wasDerivedFrom(e2,e1,[prov:steps="1"] ∪ attrs)</span> holds, <span class='conditional'>then</span>
-the <a title="entity usage event">use</a>
+the <a title="entity usage event">usage</a>
of entity denoted by <span class="name">e1</span> <a>precedes</a> the <a title="entity generation event">generation</a> of
the entity denoted by <span class="name">e2</span>.
</div>
@@ -1702,7 +1702,7 @@
<p>Then, imprecise-n derivations.</p>
<div class='interpretation' id='derivation-generation-generation-ordering'>
-Given two entity records denoted by <span class="name">e1</span> and <span class="name">e2</span>, <span class='conditional'>if</span> the record <span class="name">wasDerivedFrom(e2,e1,[prov:steps="1"] ∪ attrs)</span>
+Given two entity records denoted by <span class="name">e1</span> and <span class="name">e2</span>, <span class='conditional'>if</span> the record <span class="name">wasDerivedFrom(e2,e1,[prov:steps="n"] ∪ attrs)</span>
holds, <span class='conditional'>then</span> the
<a title="entity generation event">generation event</a> of the entity represented by the entity record denoted by <span class="name">e1</span> <a>precedes</a> the <a title="entity generation event">generation event</a> of
the entity represented by the entity record denoted by <span class="name">e2</span>.