Descriptive metadata folder on representation level

There should be no descriptive metadata folder on the representation level, see DILCISBoard#77

index.md

@@ -255,6 +255,10 @@ are in the Open Document Format (ODT) and in the second one - as a derivative
 of the first representation - all files are in the Portable Document Format
 (PDF).
 
+Note that in Figure [4](#fig4) and Figure [5](#fig5) there is no folder for descriptive metadata on the representation level.
+The reason for this is that new representations are added as a new form for persisting and visualising the content. Metadata
+relate to the intellectual entity and should be maintained on the root level.
+
 <a name="parentchild"></a>aipstruct
 
 ### Parent-Child relationship