--- a/artifacts/src/main/java/org/dive4elements/river/artifacts/model/Module.java	Wed Feb 07 11:52:04 2018 +0100
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/model/Module.java	Wed Feb 07 11:59:13 2018 +0100
@@ -15,12 +15,21 @@
  */
 public class Module {
 
-    private String name;
-    List<String> rivers;
-    private boolean selected;
+    private final String name;
 
-    public Module(String name, boolean selected, List<String> rivers) {
+    /** 
+     * Defines an (optional) group name for a module. Modules with the same group name are considered to be in the same group
+     * This can be uised to group modules in the front-end  
+     */
+    private final String group;
+
+    private final boolean selected;
+
+    private final List<String> rivers;
+
+    public Module(final String name, final boolean selected, final String group, final List<String> rivers) {
         this.name = name;
+        this.group = group;
         this.rivers = rivers;
         this.selected = selected;
     }
@@ -32,6 +41,10 @@
     public boolean isSelected() {
         return this.selected;
     }
+    
+    public String getGroup() {
+        return this.group;
+    }
 
     public List<String> getRivers() {
         return this.rivers;