diff --git a/Doc/Sd1/appendix.xml b/Doc/Sd1/appendix.xml
index f967a0f76925589e5264c10110d71b6a9bf6e78b..c1550b413d84fdae57bbc0738775bb512f5184a6 100644
--- a/Doc/Sd1/appendix.xml
+++ b/Doc/Sd1/appendix.xml
@@ -9,7 +9,7 @@
           xmlns:m="http://www.w3.org/1998/Math/MathML"
           xmlns:html="http://www.w3.org/1999/xhtml"
           xmlns:db="http://docbook.org/ns/docbook">
-  <title xml:id="sd1Appendix"> Appendix</title>
+  <title xml:id="sd1Appendix">Appendix</title>
 
   <section xml:id="sd1ExaminationHints">
     <title>Examination hints</title>
@@ -2669,37 +2669,109 @@ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       <figure xml:id="sd1_fig_maven_helloWorldPom">
         <title>»Hello, world« pom.xml</title>
 
-        <informaltable border="0">
-          <tr>
-            <td valign="top"><programlisting language="xml">&lt;project ... maven-4.0.0.xsd"&gt;
+        <programlisting language="xml">&lt;project xmlns="http://maven.apache.org/POM/4.0.0" 
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
+              http://maven.apache.org/xsd/maven-4.0.0.xsd"&gt;
+
   &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
   &lt;groupId&gt;de.hdm_stuttgart.mi&lt;/groupId&gt;
   &lt;artifactId&gt;first&lt;/artifactId&gt;
   &lt;version&gt;0.9&lt;/version&gt;
-&lt;/project&gt;</programlisting></td>
-
-            <td valign="top"><programlisting language="xml">&lt;!-- maven-compiler-plugin: --&gt;
-&lt;!-- META-INF/maven/plugin.xml --&gt;
-&lt;source... default-value="1.5"
-  &gt;${maven.compiler.source}&lt;/source&gt;
-&lt;target... default-value="1.5"
-  &gt;${maven.compiler.target}&lt;/target&gt;
-</programlisting></td>
-          </tr>
 
-          <tr>
-            <td colspan="2"><screen>first&gt; mvn compile ...
-[WARNING] File encoding has not been set, using platform encoding UTF-8, 
+&lt;/project&gt;</programlisting>
+      </figure>
+
+      <figure xml:id="sd1_fig_maven_helloWorldPomExec">
+        <title>»Hello, world« pom.xml</title>
+
+        <screen>mkdir -p src/main/java <co
+            linkends="sd1_fig_maven_helloWorldPomExec-1"
+            xml:id="sd1_fig_maven_helloWorldPomExec-1-co"/>
+
+vim src/main/java/Hello.java <co linkends="sd1_fig_maven_helloWorldPomExec-2"
+            xml:id="sd1_fig_maven_helloWorldPomExec-2-co"/>
+
+first&gt; mvn compile ...
+[WARNING] <emphasis role="red">File encoding has not been set, using platform encoding UTF-8</emphasis>, <co
+            linkends="sd1_fig_maven_helloWorldPomExec-3"
+            xml:id="sd1_fig_maven_helloWorldPomExec-3-co"/>
     i.e. build is platform dependent! ...
-[ERROR] error: Source option 5 is no longer supported. Use 6 or later.
-[ERROR] error: Target option 1.5 is no longer supported. Use 1.6 or later.
-</screen></td>
-          </tr>
-        </informaltable>
+[ERROR] error: <emphasis role="red">Source option 5 is no longer supported</emphasis>. <co
+            linkends="sd1_fig_maven_helloWorldPomExec-4"
+            xml:id="sd1_fig_maven_helloWorldPomExec-4-co"/> Use 6 or later.
+[ERROR] error: <emphasis role="red">Target option 1.5 is no longer supported</emphasis>. <co
+            linkends="sd1_fig_maven_helloWorldPomExec-5"
+            xml:id="sd1_fig_maven_helloWorldPomExec-5-co"/> Use 1.6 or later.
+</screen>
+
+        <calloutlist role="slideExclude">
+          <callout arearefs="sd1_fig_maven_helloWorldPomExec-1-co"
+                   xml:id="sd1_fig_maven_helloWorldPomExec-1">
+            <para>Create an empty folder designated for hosting <xref
+            linkend="glo_Java"/> sources. See <xref
+            linkend="sd1_fig_maven_ProjectLayout"/> for reference.</para>
+          </callout>
+
+          <callout arearefs="sd1_fig_maven_helloWorldPomExec-2-co"
+                   xml:id="sd1_fig_maven_helloWorldPomExec-2">
+            <para>Create an executable »Hello,world ...« class:</para>
+
+            <programlisting language="java">public class Hello {
+
+   public static void main(String[] args) {
+      System.out.println("Hello!");
+}</programlisting>
+          </callout>
+
+          <callout arearefs="sd1_fig_maven_helloWorldPomExec-3-co"
+                   xml:id="sd1_fig_maven_helloWorldPomExec-3">
+            <para>Ask <xref linkend="glo_Maven"/> for execution of the
+            »compile« phase.</para>
+          </callout>
+
+          <callout arearefs="sd1_fig_maven_helloWorldPomExec-4-co"
+                   xml:id="sd1_fig_maven_helloWorldPomExec-4">
+            <para>We have not yet specified an encoding on project level. Thus
+            two platforms using different encoding may provide different
+            artifact outcomes.</para>
+          </callout>
+
+          <callout arearefs="sd1_fig_maven_helloWorldPomExec-5-co"
+                   xml:id="sd1_fig_maven_helloWorldPomExec-5">
+            <para>The world has moved: <xref linkend="glo_Java"/> 1.5
+            compilers are outdated.</para>
+          </callout>
+        </calloutlist>
+      </figure>
+
+      <figure xml:id="sd1_fig_maven_simplePomJavaVersionPromlem">
+        <title>Examining the <xref linkend="glo_Java"/> version
+        culprit</title>
+
+        <screen>&gt;mvn <emphasis role="red">help:effective-pom</emphasis>
+
+&lt;project ...&gt;
+   ...
+  &lt;plugin&gt;
+    &lt;artifactId&gt;maven-compiler-plugin&lt;/artifactId&gt; ...
+
+&gt; find ~/.m2/repository/ -name maven-compiler-plugin\* ...
+       
+&gt;jar -xf ~/.m2/repository/org/apache/maven/plugins/maven-compiler-plugin/3.7.0/maven-compiler-plugin-3.7.0.jar
+&gt;cat META-INF/maven/plugin.xml</screen>
+
+        <programlisting language="xml">&lt;encoding implementation="java.lang.String" default-value="${<emphasis
+            role="red">project.build.sourceEncoding</emphasis>}"&gt;${encoding}&lt;/encoding&gt;
+&lt;source implementation="java.lang.String" default-value="1.5"&gt;${<emphasis
+            role="red">maven.compiler.source</emphasis>}&lt;/source&gt;
+&lt;target implementation="java.lang.String" default-value="1.5"&gt;${<emphasis
+            role="red">maven.compiler.target</emphasis>}&lt;/target&gt;</programlisting>
       </figure>
 
       <figure xml:id="sd1_fig_maven_simplePom">
-        <title>Resolving encoding / version issues</title>
+        <title>Resolving encoding / <xref linkend="glo_Java"/> version
+        issues</title>
 
         <programlisting language="none">&lt;project ... xsd/maven-4.0.0.xsd"&gt;
 ...
diff --git a/Doc/Sd1/arrays.xml b/Doc/Sd1/arrays.xml
index 38919d440b87a8858a96c36525d68f2e1ee2dd30..992023e30e14c25c71b1ad204e85f99198b93a55 100644
--- a/Doc/Sd1/arrays.xml
+++ b/Doc/Sd1/arrays.xml
@@ -633,12 +633,12 @@ static public long duration(Segment[] route, int personalSpeedLimit) {
   System.out.println("----+---------");
 
   for (int i = 0; i &lt; markFrequencies.frequencyByMark.length ; i++) {
-    System.out.println("   " + (markFrequencies.lowestMark + i - 1) + "|" +
+    System.out.println("   " + (markFrequencies.lowestMark + i) + "|" +
       markFrequencies.frequencyByMark[i]);
   }
 }</programlisting>
 
-          <para> providing appropriate unit tests beforehand.</para>
+          <para>providing appropriate unit tests beforehand.</para>
 
           <tip>
             <orderedlist>