--- a/src/pyams_thesaurus/interfaces/__init__.py	Mon Jun 11 16:11:07 2018 +0200
+++ b/src/pyams_thesaurus/interfaces/__init__.py	Tue Jun 26 15:10:29 2018 +0200
@@ -31,3 +31,15 @@
 
 MANAGE_THESAURUS_EXTRACT_PERMISSION = 'pyams.ManageThesaurusExtract'
 '''Permission to manage thesaurus extract contents'''
+
+
+THESAURUS_ADMIN_ROLE = 'thesaurus.Admin'
+'''Thesaurus admin is allowed to manage all thesaurus properties'''
+
+
+THESAURUS_MANAGER_ROLE = 'thesaurus.Manager'
+'''Thesaurus manager is allowed to manage thesaurus terms and extracts'''
+
+
+THESAURUS_EXTRACT_MANAGER_ROLE = 'thesaurus.ExtractManager'
+'''Thesaurus extract manager is allowed to manager content of a thesaurus extract'''