This page present pictures of the following hierarchies:<br>
<table border=1>
<tr>
	<th>Hierarchy</th>
	<th>#types</th>
	<th>#message</th>
	<th>#non-null-entries</th>
	<th>#methods</th>
</tr>
<tr>
	<td><i>Visualworks</i>, the tree hierarchy of Smalltalk (Object - Parcplace1)</td>
	<td>774</td> <td>1,170</td> <td>79,139</td> <td>4,624</td>
</tr>
<tr>
	<td><i>Unidraw</i>, Unidraw/Interviews application in C++ (almost a tree),
		614 classes, 1.015 parents,
		Graphical editing applications (by John Vlissides)
	</td>
	<td>614</td> <td>360</td> <td>8,110</td> <td>2,331</td>
</tr>
<tr>
	<td><i>IBM XML</i>, XML Parser from IBM, written in Java (The MI version includes interfaces),
		145 classes and interfaces, 1.23 parents
	</td>
	<td>107</td> <td>131</td> <td>1,295</td> <td>587</td>
</tr>
<tr>
	<td>MI version of IBM XML</td>
	<td>145</td> <td>271</td> <td>2,331</td> <td>945</td>
</tr>
<tr>
	<td>Harlequin</i>, A multiple-dispatching application written in Dylan</td>
	<td>666</td> <td>229</td> <td>23,111</td> <td>984</td>
</tr>
</table>
      
From each hierarchy we took the largest method family, 
	and painted the types declaring an implementation in red.
<br>

The pictures were made using the 
	<a href="http://www-pr.informatik.uni-tuebingen.de/yfiles/">yFiles</a> Project.
<br>
We used the following layout schemes:
<OL>
<li>hierachic
<li>radial (or radar)
<li>tree (and tree with straight lines)
<li>organic (for better viewing large MI hierarchies, which are too complicated)
</OL>

<center>

<hr>

<h1><i>Visualworks</i></h1>
<! height=1130 width=1560 >
<! IMG height=565 width=780 src="visualworks1.hierachic.gif">
<a href="visualworks1.hierachic.gif">visualworks1.hierachic.gif</a><br>
<a href="visualworks1.tree2.gif">visualworks1.tree2.gif</a><br>

<a href="hierachic-visualworks1.pdf">hierachic-visualworks1.pdf</a><br>
<a href="tree-visualworks1.pdf">tree-visualworks1.pdf</a><br>
<a href="radial-visualworks1.pdf">radial-visualworks1.pdf</a><br>

<h1><i>Unidraw-interviews</i></h1>
<a href="unidraw-C++-hierarchy 614 nodes 623 edges.jpg">unidraw-C++-hierarchy 614 nodes 623 edges (408KB) </a><br>
<a href="unidraw-interviews.hierachic.gif">unidraw-interviews.hierachic.gif</a><br>
<a href="unidraw-interviews.radial.gif">unidraw-interviews.radial.gif</a><br>
<a href="unidraw-interviews.organic.gif">unidraw-interviews.organic.gif</a><br>

<a href="hierachic-unidraw.pdf">hierachic-unidraw.pdf</a><br>
<a href="hierachic2-unidraw.pdf">hierachic2-unidraw.pdf</a><br>
<a href="hierachic3-unidraw.pdf">hierachic3-unidraw.pdf</a><br>
<a href="radial-unidraw.pdf">radial-unidraw.pdf</a><br>

<h1><i>IBM-XML</i></h1>
<a href="IBM-XML-java-hierarchy 145 nodes 178 edges.jpg">IBM-XML-java-hierarchy 145 nodes 178 edges (294KB) </a><br>
<a href="SI-IBM-XML.tree.gif">SI-IBM-XML.tree.gif</a><br>
<a href="SI-IBM-XML.organic.gif">SI-IBM-XML.organic.gif</a><br>
<a href="MI-IBM-XML.hierachic.gif">MI-IBM-XML.hierachic.gif</a><br>

<a href="hierachic-MI-IBM-XML.pdf">hierachic-MI-IBM-XML.pdf</a><br>
<a href="hierachic-SI-IBM-XML.pdf">hierachic-SI-IBM-XML.pdf</a><br>
<a href="radial-MI-IBM-XML.pdf">radial-MI-IBM-XML.pdf</a><br>
<a href="tree-SI-IBM-XML.pdf">tree-SI-IBM-XML.pdf</a><br>


<h1><i>harlequin</i></h1>
<a href="harlequin.hierachic.gif">harlequin.hierachic.gif</a><br>
<a href="harlequin.radial.gif">harlequin.radial.gif</a><br>
Viewing the partition into slices (in the Type Slicing Subtyping Scheme):<br>
<a href="harlequin.slice.hierachic.gif">harlequin.slice.hierachic.gif</a><br>
<a href="harlequin.slice.radial.gif">harlequin.slice.radial.gif</a><br>

<a href="hierachic-harlequin.pdf">hierachic-harlequin.pdf</a><br>
<a href="hierachic-harlequin.slices.pdf">hierachic-harlequin.slices.pdf</a><br>
<a href="radial-harlequin.pdf">radial-harlequin.pdf</a><br>