diff --git a/frontend/models.py b/frontend/models.py
index f57520f..abc2734 100644
--- a/frontend/models.py
+++ b/frontend/models.py
@@ -28,10 +28,10 @@ class PersonGlobalIdentity(models.Model):
 
 class  CitaviProjectIdentity(models.Model):
     global_identity = models.ForeignKey(PersonGlobalIdentity, blank=True, null=True)
-    project_id = models.ForeignKey(Project, blank=False, null=False)
+    project = models.ForeignKey(Project, blank=False, null=False)
     citavi_uuid = models.CharField(max_length=255, blank=False, null=False)
-    preferred_id = models.BooleanField()
+    preferred = models.BooleanField()
 
     def __unicode__(self):
-        repr = "<CitaviProjectIdentity project_id=" + str(self.project_id) + ", citavi_uuid=" + self.citavi_uuid + ", global_identity=" + str(self.global_identity) + ", preferred=" + str(self.preferred_id) + ">"
+        repr = "<CitaviProjectIdentity project=" + str(self.project) + ", citavi_uuid=" + self.citavi_uuid + ", global_identity=" + str(self.global_identity) + ", preferred=" + str(self.preferred) + ">"
         return repr
diff --git a/service/Django.py b/service/Django.py
new file mode 100644
index 0000000..e80840a
--- /dev/null
+++ b/service/Django.py
@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+
+from frontend.models import PersonGlobalIdentity, CitaviProjectIdentity
+
+
+class PersonIdentityManager():
+
+    def create_identity(self, project, uuid):
+        pgi = PersonGlobalIdentity(type='citavi')
+        pgi.save()
+        cpi = CitaviProjectIdentity(global_identity=pgi, project=project, citavi_uuid=uuid, preferred_id=True)
+        cpi.save()
+        return cpi
+
+    def add_identity_to_global_identity(self, global_identity, project, uuid, preferred):
+        cpi = CitaviProjectIdentity(global_identity=global_identity, project=project, citavi_uuid=uuid, preferred_id=True)
+        cpi.save()
+        return cpi
+
+    def get_global_identities(self):
+        return PersonGlobalIdentity.objects.all()
+
+    def get_mapped_identities_for_project(self, project):
+        return CitaviProjectIdentity.objects.filter(project=project).all()
diff --git a/service/Mapper.py b/service/Mapper.py
new file mode 100644
index 0000000..e319fd5
--- /dev/null
+++ b/service/Mapper.py
@@ -0,0 +1,37 @@
+# -*- coding: utf-8 -*-
+
+from Citavi import ProjectManager
+from Django import PersonIdentityManager
+
+class PersonMapper():
+
+    def __init__(self):
+        self._citavi_project_manager = ProjectManager()
+        self._person_identity_manager = PersonIdentityManager()
+
+    def __del__(self):
+        del self._citavi_project_manager
+        del self._person_identity_manager
+
+    def get_unmapped_identities(self, project):
+        citavi_persons = self._citavi_project_manager.get_persons_from_project(project.id)
+        mapped_persons = self._person_identity_manager.get_mapped_identities_for_project(project)
+        print "#"
+        print citavi_persons
+        print "##"
+        print mapped_persons
+        print "###"
+
+        for person in citavi_persons:
+            print str(person)
+        print "########################################\n########################################"
+
+        for person in mapped_persons:
+            #  TODO: Actually use this loop to remove persons in citavi_persons, return the rest.
+            print str(person)
+
+def test():
+    from frontend.models import Project
+    project = Project.objects.get(id=1)
+    p = PersonMapper()
+    p.get_unmapped_identities(project)