diff --git a/system/reset_usability_test.php b/system/reset_usability_test.php
new file mode 100644
index 000000000..f92257cea
--- /dev/null
+++ b/system/reset_usability_test.php
@@ -0,0 +1,45 @@
+
+
+
+ Reset Usability Test
+
+
+
+Reset Usability Test
+
+';
+
+if(isset($_POST['reset']))
+{
+ echo '
Resetting Usability Test ... ';
+ $db = new basis_db();
+
+ $qry = "
+ delete from public.tbl_konto where person_id in (6008,5821,22186,18441,17461,12749,21728,21297,17905,21768,1671,18572,16215,17469,1211,7938,16678,22731,15892,15732,15299,18396,752,5859,16370,18749,15812,23369);
+ delete from public.tbl_konto where person_id=2656 and betrag='363.36';
+ update lehre.tbl_lehrveranstaltung set sort=NULL where studiengang_kz=10002 and semester=2;
+ delete from lehre.tbl_lehreinheitmitarbeiter where lehreinheit_id=26208;
+ delete from lehre.tbl_lehreinheitgruppe where lehreinheit_id=26260;
+ INSERT INTO lehre.tbl_lehreinheitgruppe (lehreinheitgruppe_id, lehreinheit_id, studiengang_kz, semester, verband, gruppe, gruppe_kurzbz, updateamum, updatevon, insertamum, insertvon, ext_id) VALUES ('23100', '26260', '10001', '1', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
+ delete from public.tbl_prestudentstatus where prestudent_id=(select prestudent_id from public.tbl_prestudent where person_id=4095 and studiengang_kz=10001); delete from public.tbl_prestudent where person_id=4095 and studiengang_kz=10001;
+ delete from public.tbl_prestudentstatus where prestudent_id=(select prestudent_id from public.tbl_prestudent where person_id=(select person_id from public.tbl_person where nachname='Midler'));
+ delete from public.tbl_prestudent where person_id=(select person_id from public.tbl_person where nachname='Midler');
+ delete from public.tbl_adresse where person_id=(select person_id from public.tbl_person where nachname='Midler');
+ delete from public.tbl_person where nachname='Midler';
+ ";
+
+ if($db->db_query($qry))
+ echo 'done';
+ else
+ echo 'error'.$db->db_last_error();
+}
+?>
\ No newline at end of file