added migration use case
diff --git a/usecases/index.php b/usecases/index.php
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--- a/usecases/index.php
+++ b/usecases/index.php
@@ -73,6 +73,26 @@
 			<h3>List of use cases</h3>
 	    	<ul>
 
+	    		<li style="list-style:none">
+		    		<table width="100%">
+						<tr>
+							<td width="20%" valign="middle">
+					    		<h2> <a name="migration" href="migration/">Model migration illustrated by a simple metamodel</a> </h2>
+		  					</td>
+							<td width="60%" align="justify">
+								This use case explains how to use AMW and ATL to migrate models conforming to different versions of a metamodel
+								by following the approach proposed in <a href="http://www.eclipse.org/gmt/amw/usecases/compare/">Metamodel comparison and model migration</a>.
+								The main contribution of this work is a step-by-step guide explaining the migration process
+								of a simple metamodel. Additionally, it contains the instructions to launch the matching transformation
+								Name Similarity not used in the previous related use cases.
+							</td>
+							<td width="10%" align="center">
+								<img src="../../resources/images/completion.png"  />
+							</td>
+						</tr>
+					</table>
+	    		</li>
+
 				<li style="list-style:none">
 	    		<table width="100%">
 					<tr>
diff --git a/usecases/migration/Persons2PersonsNew.zip b/usecases/migration/Persons2PersonsNew.zip
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diff --git a/usecases/migration/Persons2PersonsNewUserGuide.pdf b/usecases/migration/Persons2PersonsNewUserGuide.pdf
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diff --git a/usecases/migration/index.php b/usecases/migration/index.php
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+<?php  																														require_once($_SERVER['DOCUMENT_ROOT'] . "/eclipse.org-common/system/app.class.php");	require_once($_SERVER['DOCUMENT_ROOT'] . "/eclipse.org-common/system/nav.class.php"); 	require_once($_SERVER['DOCUMENT_ROOT'] . "/eclipse.org-common/system/menu.class.php"); 	$App 	= new App();	$Nav	= new Nav();	$Menu 	= new Menu();		include($App->getProjectCommon());    # All on the same line to unclutter the user's desktop'
+
+	#*****************************************************************************
+	#
+	# template.php
+	#
+	# Author: 		Freddy Allilaire
+	# Date:			2005-12-07
+	#
+	# Description: Type your page comments here - these are not sent to the browser
+	#
+	#
+	#****************************************************************************
+
+	#
+	# Begin: page-specific settings.  Change these.
+	$pageTitle 		= "AMW Use Case - Model migration illustrated by a simple metamodel";
+	$pageKeywords	= "Metamodel comparison, model weaving, transformations, ATL, AMW, AMMA";
+	$pageAuthor		= "Kelly Garces";
+
+	# End: page-specific settings
+	#
+
+	# Paste your HTML content between the EOHTML markers!
+	$html = <<<EOHTML
+
+	<!-- Main part -->
+	<div id="midcolumn">
+		<h1><font color='#280882'>AMW</font> Use Case - Model migration illustrated by a simple metamodel </h1>
+
+		<a name="goals"></a>
+		<img align="right" src="../../resources/amwLogoSmall.png" valign="top" style="padding-left: 10px;" alt="AMW Logo" />
+		<blockquote>
+			<ul>
+				<li><a href="#overview"><b>Overview</b></a></li>
+				<li><a href="#download"><b>Download and examples</b></a></li>
+				<li><a href="#related"><b>Related use cases</b></a></li>
+				<li><a href="#reference"><b>References</b></a></li>
+				<li><a href="#acknowledgement"><b>Acknowledgements</b></a></li>
+
+			</ul>
+		</blockquote>
+
+		<hr class="clearer" />
+
+		<table>
+			<COLGROUP>
+				<COL width="2%">
+				<COL width="98%">
+		<tr>
+			<td>
+			</td>
+
+				The use case explains how to use AMW and ATL to migrate models conforming to different versions of a metamodel
+				by following the approach proposed in <a href="http://www.eclipse.org/gmt/amw/usecases/compare/">Metamodel comparison and model migration</a>.
+				The main contribution of this work is a step-by-step guide explaining the migration process of a simple metamodel.
+				Additionally, it contains the instructions to launch the matching transformation Name Similarity, not used in the previous
+				related use cases.
+
+		<h4 STYLE="font-size: 10pt; padding: 0; border-bottom: 2px solid #49457C; background-position: top left; background-repeat; repeat-x;">
+		<a name="overview">Overview</a></h4>
+
+		<p/>This use case migrates a model, conforming to metamodel Persons, to another model, conforming to metamodel PersonsNew.
+		PersonsNew is a different version of Persons; we obtained this version by modifying Persons (see figure 1).
+
+		<p align="center">
+						<img src="resources/Persons&PersonsNew.png"/>
+			  			<br /><br />
+						<b>Figure 1. Persons and PersonsNew metamodels</b>
+		</p>
+
+		<p/>We migrate the models by using an ATL transformation. In order to generate the transformation we follow the iterative matching
+		process proposed in [1]. First we execute matching transformations. Every matching transformation generates a weaving model.
+		The weaving model contains links between the elements of both metamodels. Each link has a value that indicates the similarity
+		between the woven elements. When we finish the matching transformation execution, we launch a higher-order transformation (HOT) that receives the final weaving model as input and generates the ATL transformation as output.
+
+		<p/>AMW provides a set of matching transformations and a HOT. These can be easily launched on the weaver editor. Particularly,
+		we use the following matching transformations:
+
+		<ul style="list-style-type:none;">
+		<li>Cartesian product: creates a new link for every pair of elements for a left and right metamodels.</li>
+		<li>Name similarity: applies string comparison methods to calculate the similarity between element names.</li>
+		<li>Propagation: creates elements that enable to propagate similarity values between links. The propagation elements are used
+			by the 'Similarity flooding' algorithm.</li>
+		<li>Similarity flooding (SF): propagates the similarity between elements that have containment or inheritance relationships.
+			For instance, Male and MalePerson have name similarity; this correspondence is represented by a weaving link.
+			SF propagates the similarity of these classes to the parent classes (Person and NamedEntity).</li>
+		<li>Threshold: creates a new weaving model only with the links that have a similarity value higher than a given threshold
+			(e.g., 0.4).</li>
+		<li>Link rewriting: for every elements of the left metamodel, selects one link with the highest similarity value. After that,
+			the transformation rewrites the links following the containment relationships between the elements (e.g., class and
+			attribute containment).</li>
+		</ul>
+
+		<p/>The matching process yields six weaving model. The first weaving model (the Cartesian product) contains 10 links.
+		After applying all the matching transformations, the weaving model is reduced to 4 links. We launch the HOT transformation
+		from this weaving model obtaining an executable transformation.
+
+
+		<h4 STYLE="font-size: 10pt; padding: 0; border-bottom: 2px solid #49457C;
+							background-position: top left; background-repeat; repeat-x;">
+		<a name="download">Download and examples</a></h4>
+
+		<table>
+			<COLGROUP>
+				<COL width="25%">
+				<COL width="75%">
+
+		<tr>
+		<td align="center">
+			<a href="Persons2PersonsNew.zip"><h3>Example</h3></a>
+		</td>
+		<td>
+			This example is the complete scenario to migrate a simple model by using differents matching transformations and a HOT
+			<p/>
+		</td>
+		</tr>
+
+		<tr>
+		<td align="center">
+			<a href="Persons2PersonsNewUserGuide.pdf"><h3>Example User Guide</h3></a>
+		</td>
+		<td>
+			This document explains step-by-step how to migrate the models by using AMW and ATL.
+			<p/>
+		</td>
+		</tr>
+
+		</table>
+
+		<h4 STYLE="font-size: 10pt; padding: 0; border-bottom: 2px solid #49457C;
+		background-position: top left; background-repeat; repeat-x;">
+		<a name="related">Related use cases</a></h4>
+
+				<table>
+					<COLGROUP>
+						<COL width="25%">
+						<COL width="68%">
+
+				<tr>
+					<td align="center">
+						<a href="../compare/"><h3>Metamodel Comparison and Model Migration</h3></a>
+					</td>
+					<td>
+						The Use Case in which the one presented here is based.
+					</td>
+				</tr>
+
+				<tr>
+					<td align="center">
+						<a href="../matching/"><h3>Matching</h3></a>
+					</td>
+					<td>
+						Matching is the generic process that creates weaving models.
+						This use case gives a general overview of the matching process, and how it is handled by AMW and ATL.
+					</td>
+				</tr>
+
+		</table>
+
+		<p/>
+
+		<h4 STYLE="font-size: 10pt; padding: 0; border-bottom: 2px solid #49457C; background-position: top left; background-repeat; repeat-x;">
+			<a name="reference"></a>References</h4>
+
+		[1] Didonet del Fabro, M., Valduriez, P. Semi-automatic model integration using matching transformations and weaving models
+			In SAC'07, March 11-15, 2007, Seoul, Korea.
+
+		<h4 STYLE="font-size: 10pt; padding: 0; border-bottom: 2px solid #49457C; background-position: top left; background-repeat; repeat-x;">
+					<a name="acknowledgement"></a>Acknowledgement</h4>
+
+		This work is supported by the <a href="http://flfs.emn.fr/">FLFS project</a>, INRIA - LINA and Obasco.</td>
+		
+
+<p/>
+	</div><p/>
+	<div id="rightcolumn">
+		<div class="sideitem">
+			<h6>General Information</h6>
+			<ul>
+				<li style="list-style:none">Octubre 2007</li>
+				<li style="list-style:none">By <a href="mailto://kelly.garces@emn.fr">Kelly Garces</a></li>
+			</ul>
+		</div>
+	</div>
+
+
+EOHTML;
+
+
+	# Generate the web page
+	$App->generatePage($theme, $Menu, $Nav, $pageAuthor, $pageKeywords, $pageTitle, $html);
+?>
+
+
+
+
+
+
+
diff --git a/usecases/migration/resources/Persons&PersonsNew.png b/usecases/migration/resources/Persons&PersonsNew.png
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