diff --git a/analysis/lttng_models.py b/analysis/lttng_models.py
new file mode 100644
index 0000000..7128293
--- /dev/null
+++ b/analysis/lttng_models.py
@@ -0,0 +1,36 @@
+# Model objects for LTTng traces/events
+
+def get_field(event, field_name, default=None):
+    return event.get(field_name, d=default)
+
+def get_name(event):
+    return get_field(event, '_name')
+
+
+class EventMetadata():
+    def __init__(self, event_name, pid, tid, timestamp, procname):
+        self._event_name = event_name
+        self._pid = pid
+        self._tid = tid
+        self._timestamp = timestamp
+        self._procname = procname
+
+    @property
+    def event_name(self):
+        return self._event_name
+
+    @property
+    def pid(self):
+        return self._pid
+
+    @property
+    def tid(self):
+        return self._tid
+
+    @property
+    def timestamp(self):
+        return self._timestamp
+
+    @property
+    def procname(self):
+        return self._procname
diff --git a/analysis/ros_processor.py b/analysis/ros_processor.py
index cbd8d66..bf45af6 100644
--- a/analysis/ros_processor.py
+++ b/analysis/ros_processor.py
@@ -1,5 +1,7 @@
 # Process trace events and create ROS model
 
+from .lttng_models import EventMetadata, get_field, get_name
+
 def ros_process(events):
     """
     Process unpickled events and create ROS model
@@ -10,36 +12,6 @@ def ros_process(events):
         print(f'event: {str(event)}')
         processor.handle(event)
 
-# TODO move
-class EventMetadata():
-    def __init__(self, event_name, pid, tid, timestamp, procname):
-        self._event_name = event_name
-        self._pid = pid
-        self._tid = tid
-        self._timestamp = timestamp
-        self._procname = procname
-
-    @property
-    def event_name(self):
-        return self._event_name
-
-    @property
-    def pid(self):
-        return self._pid
-
-    @property
-    def tid(self):
-        return self._tid
-
-    @property
-    def timestamp(self):
-        return self._timestamp
-
-    @property
-    def procname(self):
-        return self._procname
-
-
 class RosProcessor():
     def __init__(self):
         # TODO add other stuff
@@ -83,10 +55,3 @@ class RosProcessor():
     def _handle_subscription_callback_end(self, event, metadata):
         # TODO
         pass
-
-
-def get_field(event, field_name, default=None):
-    return event.get(field_name, d=default)
-
-def get_name(event):
-    return get_field(event, '_name')