diff --git a/python/damask/_configmaterial.py b/python/damask/_configmaterial.py
index 3eb7180e2..26006fef7 100644
--- a/python/damask/_configmaterial.py
+++ b/python/damask/_configmaterial.py
@@ -27,34 +27,34 @@ class ConfigMaterial(Config):
     def is_complete(self):
         """Check for completeness."""
         ok = True
-        for top_level in ['homogenization','phase','microstructure']:
+        for top_level in ['homogenization','phase','material']:
             # ToDo: With python 3.8 as prerequisite we can shorten with :=
             ok &= top_level in self
             if top_level not in self: print(f'{top_level} entry missing')
 
         if ok:
-           ok &= len(self['microstructure']) > 0
-           if len(self['microstructure']) < 1: print('Incomplete microstructure definition')
+           ok &= len(self['material']) > 0
+           if len(self['material']) < 1: print('Incomplete material definition')
 
         if ok:
             homogenization = set()
             phase          = set()
-            for i,v in enumerate(self['microstructure']):
+            for i,v in enumerate(self['material']):
                 if 'homogenization' in v:
                     homogenization.add(v['homogenization'])
                 else:
-                    print(f'No homogenization specified in microstructure {i}')
+                    print(f'No homogenization specified in material {i}')
                     ok = False
 
                 if 'constituents' in v:
                     for ii,vv in enumerate(v['constituents']):
-                        if 'orientation' not in vv:
-                            print('No orientation specified in constituent {ii} of microstructure {i}')
+                        if 'O' not in vv:
+                            print('No orientation specified in constituent {ii} of material {i}')
                             ok = False
                         if 'phase' in vv:
                             phase.add(vv['phase'])
                         else:
-                            print(f'No phase specified in constituent {ii} of microstructure {i}')
+                            print(f'No phase specified in constituent {ii} of material {i}')
                             ok = False
 
             for k,v in self['phase'].items():
@@ -92,42 +92,42 @@ class ConfigMaterial(Config):
                         print(f"Invalid lattice: '{s}' in phase '{k}'")
                         ok = False
 
-        if 'microstructure' in self:
-            for i,v in enumerate(self['microstructure']):
+        if 'material' in self:
+            for i,v in enumerate(self['material']):
                 if 'constituents' in v:
                     f = 0.0
                     for c in v['constituents']:
                         f+= float(c['fraction'])
-                        if 'orientation' in c:
+                        if 'O' in c:
                             try:
-                                Rotation.from_quaternion(c['orientation'])
+                                Rotation.from_quaternion(c['O'])
                             except ValueError:
-                                o = c['orientation']
-                                print(f"Invalid orientation: '{o}' in microstructure '{i}'")
+                                o = c['O']
+                                print(f"Invalid orientation: '{o}' in material '{i}'")
                                 ok = False
                     if not np.isclose(f,1.0):
-                        print(f"Invalid total fraction '{f}' in microstructure '{i}'")
+                        print(f"Invalid total fraction '{f}' in material '{i}'")
                         ok = False
 
         return ok
 
 
-    def microstructure_rename_phase(self,mapping,ID=None,constituent=None):
+    def material_rename_phase(self,mapping,ID=None,constituent=None):
         """
-        Change phase name in microstructure.
+        Change phase name in material.
 
         Parameters
         ----------
         mapping: dictionary
             Mapping from old name to new name
         ID: list of ints, optional
-            Limit renaming to selected microstructure IDs.
+            Limit renaming to selected material IDs.
         constituent: list of ints, optional
             Limit renaming to selected constituents.
 
         """
         dup = copy.deepcopy(self)
-        for i,m in enumerate(dup['microstructure']):
+        for i,m in enumerate(dup['material']):
             if ID and i not in ID: continue
             for c in m['constituents']:
                 if constituent is not None and c not in constituent: continue
@@ -138,9 +138,9 @@ class ConfigMaterial(Config):
         return dup
 
 
-    def microstructure_rename_homogenization(self,mapping,ID=None):
+    def material_rename_homogenization(self,mapping,ID=None):
         """
-        Change homogenization name in microstructure.
+        Change homogenization name in material.
 
         Parameters
         ----------
@@ -151,7 +151,7 @@ class ConfigMaterial(Config):
 
         """
         dup = copy.deepcopy(self)
-        for i,m in enumerate(dup['microstructure']):
+        for i,m in enumerate(dup['material']):
             if ID and i not in ID: continue
             try:
                 m['homogenization'] = mapping[m['homogenization']]