diff --git a/src/ATBAPP/VMCInterface.h b/src/ATBAPP/VMCInterface.h
index 4ae4995..cecf374 100644
--- a/src/ATBAPP/VMCInterface.h
+++ b/src/ATBAPP/VMCInterface.h
@@ -17,33 +17,113 @@ namespace nsVMCInterface {
 }
 
 
-class VMCInterface : public UnifiedDCVMCInterface {
+class VMCInterface : public QObject, public UnifiedDCVMCInterface {
 
     Q_OBJECT
-    Q_INTERFACES(ATBAPPplugin)
-    Q_INTERFACES(UnifiedDCVMCInterface)
+    Q_INTERFACES(ATBAPPplugin UnifiedDCVMCInterface)
 
 public:
 
-    explicit VMCInterface(QObject *parent = nullptr)
-        : UnifiedDCVMCInterface(parent) {}
+    explicit VMCInterface(QObject *parent = nullptr) : QObject(parent) {}
+    virtual ~VMCInterface() = default;
 
     virtual PLUGIN_STATE initPlugin(QObject *eventReceiver, QObject *atbSystem,
                                     QObject *hmiConfig, QSettings const &settings) override {
         return initVMCPlugin(eventReceiver, atbSystem, hmiConfig, settings);
     }
 
-    virtual ~VMCInterface() {}
-
     /**
-     * @brief initDCPlugin
+     * @brief initVMCPlugin
      * @param eventReceiver - QObject to receive ATBMachineEvents or HealthEvents
      * @param settings
      * @return
      */
     virtual PLUGIN_STATE initVMCPlugin(QObject *eventReceiver,
-                                       QObject *atbSystem, QObject *hmiConfig,
-                                       const QSettings & settings) = 0;
+                                      QObject *atbSystem, QObject *hmiConfig,
+                                      const QSettings & settings) = 0;
+
+#if 0
+
+    virtual QString getString(RESULT_STATE resultState) = 0;
+
+public slots:
+    virtual void onChangedProgramModeToSELL() = 0;
+    virtual void onChangedProgramModeToSERVICE() = 0;
+    virtual void onChangedProgramModeToIDLE() = 0;
+    virtual void onChangedProgramModeToOOO() = 0;
+
+    virtual void startPhysicalLayer() = 0;
+    virtual void stopPhysicalLayer() = 0;
+    virtual void reboot() = 0;
+    virtual void reset() = 0;
+
+signals:
+    void printTicketFinished(RESULT_STATE resultState,
+                             const QString & errorCode,
+                             const QString & errorDescription);
+    void printReceiptFinished(RESULT_STATE resultState,
+                              const QString & errorCode,
+                              const QString & errorDescription);
+
+    /**
+     * emitted on e.g. a coin input
+     */
+    void cashInputEvent(RESULT_STATE resultState,
+                                CASH_STATE cashState,
+                                const QString & newCashValue,
+                                /* additional variables? */
+                                const QString & errorCode,
+                                const QString & errorDescription);
+
+    /**
+     * emitted if cashInput has been stopped, e.g. in result to task requestStopCashInput():
+     *  -> shutter is blocked
+     *  -> no cash input is possible
+     *  -> coins are in cache
+     */
+    void cashInputFinished(RESULT_STATE resultState,
+                                     const QString & newCashValue,
+                                     /*  additional variables? */
+                                     const QString & errorCode,
+                                     const QString & errorDescription);
+
+
+    /**
+     * emitted e.g. if service door is opened
+     */
+    void requestModeSERVICE();
+
+    /**
+     * emitted e.g. if doors are closed
+     */
+    void requestModeIDLE();
+
+    /**
+     * emitted e.g. on severe errors
+     */
+    void requestModeOOO();
+
+    /**
+     * emitted e.g. if service door is opened
+     */
+    void requestAccountResponse(const QHash<QString, QVariant> & accountData);
+
+    /**
+     * emitted on error
+     * depending on errorCode:
+     * -> interrupt selling process
+     * -> machine can go to state OOO
+     * -> send error event to ISMAS
+     * -> ...
+     */
+    void Error(
+            /*  additional variables? */
+            const QString & errorCode,
+            const QString & errorDescription);
+#endif
 };
 
+Q_DECLARE_INTERFACE(VMCInterface,
+                    "eu.atb.ptu.plugin.VMCInterface/1.0")
+
 #endif // VMCINTERFACE_H