diff --git a/doc/consistency.txt b/doc/consistency.txt
index 873b0f2..4b00606 100644
--- a/doc/consistency.txt
+++ b/doc/consistency.txt
@@ -69,7 +69,15 @@ This type of validation is very open. Let's take a use case : an option
 has a certain value, and the value of this option can change the owner 
 of another option or option group... Everything is possible.
 
-FIXME : put an example here
+For example, the configuration paths have to be unique in the 
+:ref:`glossary#schema`, the validation is carried out at the 
+:api:`config.Config._cfgimpl_build()` time in the 
+:api:`config.Config._validate_duplicates()` method.
+
+Other hook are availables to validate upon a whole configuration at any 
+time.
+
+.. FIXME : get the validates hooks from the original config pypy's code
 
 Identical option names 
 ----------------------
diff --git a/doc/glossary.txt b/doc/glossary.txt
index 06f0616..e041090 100644
--- a/doc/glossary.txt
+++ b/doc/glossary.txt
@@ -67,15 +67,18 @@ glossary
 
 **disabled option**
 
-    FIXME
+    a disabled option has a different behaviour on regards to the access 
+    of the value in the configuration, see :doc:`status` for more details.
 
 **fill option**
 
-    FIXME
-    
+    a fill option is like an automatic option except that it is 
+    calculated only if a value hasn't been set.
+        
 **auto option**
 
-    FIXME
+    an automatic option is an option thas is carried out by an external 
+    calculation
 
 .. _mandatory:
 
diff --git a/doc/todo.txt b/doc/todo.txt
index 1da6c8b..7f89337 100644
--- a/doc/todo.txt
+++ b/doc/todo.txt
@@ -28,7 +28,7 @@ mettre une contrainte de temps dans le cache
   globalement dans toute la config
 
 - mettre une contrainte de temps donnée 
-  time = 1000
+  expires = timestamp + deltatime
 
 :date: 17 avril
 
@@ -97,7 +97,6 @@ type option (dérivé de ChoiceOPtion) dans lequel il y a des nouvelles valeurs
 possibles (pas de validations) ou plutôt une StringOption qui propose un choix
 de valeurs par défault de type liste.
 
-
 :date: 24 mars
 
 - hide pour les sous-sous config (récursivement) et pas seulement une