diff --git a/index.html b/index.html
index e8708e18..c94964a2 100644
--- a/index.html
+++ b/index.html
@@ -503,8 +503,6 @@ <h1><span class="image"><img src="./images/arc42-logo.png" alt="arc42"></span> T
 <ul class="sectlevel2">
 <li><a href="#_quality_tree">10.1. Quality Tree</a></li>
 <li><a href="#_quality_scenarios">10.2. Quality Scenarios</a></li>
-<li><a href="#_usage_scenarios">10.3. Usage Scenarios</a></li>
-<li><a href="#_change_scenarios">10.4. Change Scenarios</a></li>
 </ul>
 </li>
 <li><a href="#section-technical-risks">11. Risks and Technical Debts</a></li>
@@ -1718,10 +1716,8 @@ <h3 id="_quality_tree">10.1. Quality Tree</h3>
 </div>
 <div class="sect2">
 <h3 id="_quality_scenarios">10.2. Quality Scenarios</h3>
-
-</div>
-<div class="sect2">
-<h3 id="_usage_scenarios">10.3. Usage Scenarios</h3>
+<div class="sect3">
+<h4 id="_usage_scenarios">10.2.1. Usage Scenarios</h4>
 <table class="tableblock frame-all grid-all stretch">
 <colgroup>
 <col style="width: 14.2857%;">
@@ -1783,8 +1779,8 @@ <h3 id="_usage_scenarios">10.3. Usage Scenarios</h3>
 </tbody>
 </table>
 </div>
-<div class="sect2">
-<h3 id="_change_scenarios">10.4. Change Scenarios</h3>
+<div class="sect3">
+<h4 id="_change_scenarios">10.2.2. Change Scenarios</h4>
 <table class="tableblock frame-all grid-all stretch">
 <colgroup>
 <col style="width: 14.2857%;">
@@ -1849,6 +1845,7 @@ <h3 id="_change_scenarios">10.4. Change Scenarios</h3>
 </div>
 </div>
 </div>
+</div>
 <div class="sect1">
 <h2 id="section-technical-risks">11. Risks and Technical Debts</h2>
 <div class="sectionbody">