+/** @defgroup ir_dump Visualisation
+ *
+ * Dumps information so it can be visualised. The dump format of most functions
+ * is vcg. This is a text based graph representation. Some use the original
+ * format, but most generate an extended format that is only read by some
+ * special versions of xvcg or by the commercialized version now calles aiSee.
+ *
+ * A test version of aiSee is available at
+ * http://www.absint.de/aisee/download/index.htm.
+ *
+ * We have developed an own advanced viewer called ycomp:
+ * http://www.info.uni-karlsruhe.de/software/ycomp/
+ *@{
+ */
+
+/** @defgroup convenience Convenience Interface
+ * @{
+ */