diff --git a/plugins/lunchmealplugin/lunchmealplugin.cpp b/plugins/lunchmealplugin/lunchmealplugin.cpp
index b07fbeb..3e8e278 100644
--- a/plugins/lunchmealplugin/lunchmealplugin.cpp
+++ b/plugins/lunchmealplugin/lunchmealplugin.cpp
@@ -1,6 +1,14 @@
 #include "lunchmealplugin.h"
 
-LunchMealPlugin::LunchMealPlugin(QObject *parent) : QObject(parent)
+#include <QDebug>
+
+LunchMealPlugin::LunchMealPlugin(QObject *parent) :
+    ZeiterfassungPlugin(parent)
 {
 
 }
+
+void LunchMealPlugin::initialize()
+{
+    qDebug() << "called";
+}
diff --git a/plugins/lunchmealplugin/lunchmealplugin.h b/plugins/lunchmealplugin/lunchmealplugin.h
index 3fe3055..9befa20 100644
--- a/plugins/lunchmealplugin/lunchmealplugin.h
+++ b/plugins/lunchmealplugin/lunchmealplugin.h
@@ -3,15 +3,19 @@
 
 #include <QObject>
 
-class Q_DECL_EXPORT LunchMealPlugin : public QObject
+#include "zeiterfassungplugin.h"
+
+class Q_DECL_EXPORT LunchMealPlugin : public ZeiterfassungPlugin
 {
     Q_OBJECT
+    Q_PLUGIN_METADATA(IID "dbsoftware.zeiterfassung.plugin/1.0" FILE "lunchmealplugin.json")
+    Q_INTERFACES(ZeiterfassungPlugin)
+
 public:
     explicit LunchMealPlugin(QObject *parent = 0);
 
-signals:
-
-public slots:
+    // ZeiterfassungPlugin interface
+    void initialize() Q_DECL_OVERRIDE;
 };
 
 #endif // LUNCHMEALPLUGIN_H
diff --git a/plugins/lunchmealplugin/lunchmealplugin.json b/plugins/lunchmealplugin/lunchmealplugin.json
new file mode 100644
index 0000000..e69de29
diff --git a/plugins/lunchmealplugin/lunchmealplugin.pro b/plugins/lunchmealplugin/lunchmealplugin.pro
index 306a80a..d0dd373 100644
--- a/plugins/lunchmealplugin/lunchmealplugin.pro
+++ b/plugins/lunchmealplugin/lunchmealplugin.pro
@@ -9,13 +9,13 @@ DESTDIR = $${OUT_PWD}/../../bin/plugins/zeiterfassung
 
 LIBS += -L$$OUT_PWD/../../lib -lzeiterfassunglib
 
-INCLUDEPATH += $$PWD/../zeiterfassunglib
-DEPENDPATH += $$PWD/../zeiterfassunglib
+INCLUDEPATH += $$PWD/../../zeiterfassunglib
+DEPENDPATH += $$PWD/../../zeiterfassunglib
 
 DEFINES += QT_DEPRECATED_WARNINGS QT_DISABLE_DEPRECATED_BEFORE=0x060000 QT_MESSAGELOGCONTEXT
 
-HEADERS += \
-    lunchmealplugin.h
+HEADERS += lunchmealplugin.h
 
-SOURCES += \
-    lunchmealplugin.cpp
+SOURCES += lunchmealplugin.cpp
+
+OTHER_FILES += lunchmealplugin.json
diff --git a/plugins/presenceplugin/presenceplugin.cpp b/plugins/presenceplugin/presenceplugin.cpp
index 146fd65..d0a3f5f 100644
--- a/plugins/presenceplugin/presenceplugin.cpp
+++ b/plugins/presenceplugin/presenceplugin.cpp
@@ -1,6 +1,14 @@
 #include "presenceplugin.h"
 
-PresencePlugin::PresencePlugin(QObject *parent) : QObject(parent)
+#include <QDebug>
+
+PresencePlugin::PresencePlugin(QObject *parent) :
+    ZeiterfassungPlugin(parent)
 {
 
 }
+
+void PresencePlugin::initialize()
+{
+    qDebug() << "called";
+}
diff --git a/plugins/presenceplugin/presenceplugin.h b/plugins/presenceplugin/presenceplugin.h
index e8c14b2..c90e0ea 100644
--- a/plugins/presenceplugin/presenceplugin.h
+++ b/plugins/presenceplugin/presenceplugin.h
@@ -3,15 +3,19 @@
 
 #include <QObject>
 
-class Q_DECL_EXPORT PresencePlugin : public QObject
+#include "zeiterfassungplugin.h"
+
+class Q_DECL_EXPORT PresencePlugin : public ZeiterfassungPlugin
 {
     Q_OBJECT
+    Q_PLUGIN_METADATA(IID "dbsoftware.zeiterfassung.plugin/1.0" FILE "presenceplugin.json")
+    Q_INTERFACES(ZeiterfassungPlugin)
+
 public:
     explicit PresencePlugin(QObject *parent = 0);
 
-signals:
-
-public slots:
+    // ZeiterfassungPlugin interface
+    void initialize() Q_DECL_OVERRIDE;
 };
 
 #endif // PRESENCEPLUGIN_H
diff --git a/plugins/presenceplugin/presenceplugin.json b/plugins/presenceplugin/presenceplugin.json
new file mode 100644
index 0000000..e69de29
diff --git a/plugins/presenceplugin/presenceplugin.pro b/plugins/presenceplugin/presenceplugin.pro
index a155df1..9ad4afb 100644
--- a/plugins/presenceplugin/presenceplugin.pro
+++ b/plugins/presenceplugin/presenceplugin.pro
@@ -9,13 +9,13 @@ DESTDIR = $${OUT_PWD}/../../bin/plugins/zeiterfassung
 
 LIBS += -L$$OUT_PWD/../../lib -lzeiterfassunglib
 
-INCLUDEPATH += $$PWD/../zeiterfassunglib
-DEPENDPATH += $$PWD/../zeiterfassunglib
+INCLUDEPATH += $$PWD/../../zeiterfassunglib
+DEPENDPATH += $$PWD/../../zeiterfassunglib
 
 DEFINES += QT_DEPRECATED_WARNINGS QT_DISABLE_DEPRECATED_BEFORE=0x060000 QT_MESSAGELOGCONTEXT
 
-HEADERS += \
-    presenceplugin.h
+HEADERS += presenceplugin.h
 
-SOURCES += \
-    presenceplugin.cpp
+SOURCES += presenceplugin.cpp
+
+OTHER_FILES += presenceplugin.json
diff --git a/plugins/weatherplugin/weatherplugin.cpp b/plugins/weatherplugin/weatherplugin.cpp
index d9c5e95..1fdfc72 100644
--- a/plugins/weatherplugin/weatherplugin.cpp
+++ b/plugins/weatherplugin/weatherplugin.cpp
@@ -1,6 +1,14 @@
 #include "weatherplugin.h"
 
-WeatherPlugin::WeatherPlugin(QObject *parent) : QObject(parent)
+#include <QDebug>
+
+WeatherPlugin::WeatherPlugin(QObject *parent) :
+    ZeiterfassungPlugin(parent)
 {
 
 }
+
+void WeatherPlugin::initialize()
+{
+    qDebug() << "called";
+}
diff --git a/plugins/weatherplugin/weatherplugin.h b/plugins/weatherplugin/weatherplugin.h
index 6420aba..933fdbd 100644
--- a/plugins/weatherplugin/weatherplugin.h
+++ b/plugins/weatherplugin/weatherplugin.h
@@ -3,15 +3,19 @@
 
 #include <QObject>
 
-class Q_DECL_EXPORT WeatherPlugin : public QObject
+#include "zeiterfassungplugin.h"
+
+class Q_DECL_EXPORT WeatherPlugin : public ZeiterfassungPlugin
 {
     Q_OBJECT
+    Q_PLUGIN_METADATA(IID "dbsoftware.zeiterfassung.plugin/1.0" FILE "weatherplugin.json")
+    Q_INTERFACES(ZeiterfassungPlugin)
+
 public:
     explicit WeatherPlugin(QObject *parent = 0);
 
-signals:
-
-public slots:
+    // ZeiterfassungPlugin interface
+    void initialize() Q_DECL_OVERRIDE;
 };
 
 #endif // WEATHERPLUGIN_H
diff --git a/plugins/weatherplugin/weatherplugin.json b/plugins/weatherplugin/weatherplugin.json
new file mode 100644
index 0000000..e69de29
diff --git a/plugins/weatherplugin/weatherplugin.pro b/plugins/weatherplugin/weatherplugin.pro
index 5e7e7ad..b67c6dd 100644
--- a/plugins/weatherplugin/weatherplugin.pro
+++ b/plugins/weatherplugin/weatherplugin.pro
@@ -9,13 +9,13 @@ DESTDIR = $${OUT_PWD}/../../bin/plugins/zeiterfassung
 
 LIBS += -L$$OUT_PWD/../../lib -lzeiterfassunglib
 
-INCLUDEPATH += $$PWD/../zeiterfassunglib
-DEPENDPATH += $$PWD/../zeiterfassunglib
+INCLUDEPATH += $$PWD/../../zeiterfassunglib
+DEPENDPATH += $$PWD/../../zeiterfassunglib
 
 DEFINES += QT_DEPRECATED_WARNINGS QT_DISABLE_DEPRECATED_BEFORE=0x060000 QT_MESSAGELOGCONTEXT
 
-HEADERS += \
-    weatherplugin.h
+HEADERS += weatherplugin.h
 
-SOURCES += \
-    weatherplugin.cpp
+SOURCES += weatherplugin.cpp
+
+OTHER_FILES += weatherplugin.json
diff --git a/zeiterfassunglib/zeiterfassunglib.pro b/zeiterfassunglib/zeiterfassunglib.pro
index 28013eb..994e871 100644
--- a/zeiterfassunglib/zeiterfassunglib.pro
+++ b/zeiterfassunglib/zeiterfassunglib.pro
@@ -11,6 +11,7 @@ DEFINES += QT_DEPRECATED_WARNINGS QT_DISABLE_DEPRECATED_BEFORE=0x060000 QT_MESSA
 DEFINES += ZEITERFASSUNGLIB_LIBRARY
 
 SOURCES += zeiterfassungapi.cpp \
+           zeiterfassungplugin.cpp \
            replies/createtimeassignmentreply.cpp \
            replies/updatebookingreply.cpp \
            replies/getbookingsreply.cpp \
@@ -30,6 +31,7 @@ SOURCES += zeiterfassungapi.cpp \
 HEADERS += cpp14polyfills.h \
            zeiterfassunglib_global.h \
            zeiterfassungapi.h \
+           zeiterfassungplugin.h \
            replies/createtimeassignmentreply.h \
            replies/updatebookingreply.h \
            replies/getbookingsreply.h \
diff --git a/zeiterfassunglib/zeiterfassungplugin.cpp b/zeiterfassunglib/zeiterfassungplugin.cpp
new file mode 100644
index 0000000..4436d93
--- /dev/null
+++ b/zeiterfassunglib/zeiterfassungplugin.cpp
@@ -0,0 +1,7 @@
+#include "zeiterfassungplugin.h"
+
+ZeiterfassungPlugin::ZeiterfassungPlugin(QObject *parent) :
+    QObject(parent)
+{
+
+}
diff --git a/zeiterfassunglib/zeiterfassungplugin.h b/zeiterfassunglib/zeiterfassungplugin.h
new file mode 100644
index 0000000..f437480
--- /dev/null
+++ b/zeiterfassunglib/zeiterfassungplugin.h
@@ -0,0 +1,18 @@
+#ifndef ZEITERFASSUNGPLUGIN_H
+#define ZEITERFASSUNGPLUGIN_H
+
+#include <QObject>
+
+class ZeiterfassungPlugin : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit ZeiterfassungPlugin(QObject *parent = 0);
+
+    virtual void initialize() = 0;
+};
+
+Q_DECLARE_INTERFACE(ZeiterfassungPlugin, "dbsoftware.zeiterfassung.plugin/1.0")
+
+#endif // ZEITERFASSUNGPLUGIN_H