+/** @defgroup trigger trigger
+ * Category of classes for trigger
+ * see more on the \ref README_trigger page.
+ * @ingroup MUON
+ * @{
+ */
+/** @} */
+
+/** @defgroup base base
+ * Category of basic classes
+ * see more on the \ref README_base page.
+ * @ingroup MUON
+ * @{
+ */
+/** @} */
+
+/** @defgroup shuttle shuttle
+ * Category of classes for shuttle
+ * see more on the \ref README_shuttle page.
+ * @ingroup MUON
+ * @{
+ */
+/** @} */
+
+/** @defgroup sim sim
+ * Category of classes for simulation
+ * see more on the \ref README_sim page.
+ * @ingroup MUON
+ * @{
+ */
+/** @} */
+
+/** @defgroup rec rec
+ * Category of classes for reconstruction
+ * see more on the \ref README_rec page.
+ * @ingroup MUON
+ * @{
+ */
+/** @} */
+
+/** @defgroup calign calign
+ * Category of basic classes for calibration and alignment tasks
+ * @ingroup MUON
+ * @{
+ */
+/** @} */
+
+/** @defgroup evaluation evaluation
+ * Category of classes for evaluation
+ * see more on the \ref README_evaluation page.
+ * @ingroup MUON
+ * @{
+ */
+/** @} */
+
+/** @defgroup graphics graphics
+ * Category of classes for tracker visualization
+ * see more on the \ref README_mchview page.
+ * @ingroup MUON