--- a/doc/book/en/devrepo/datamodel/metadata.rst	Mon Jul 06 17:39:35 2015 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,37 +0,0 @@
-
-Metadata
---------
-
-.. index::
-   schema: meta-data;
-   schema: eid; creation_date; modification_data; cwuri
-   schema: created_by; owned_by; is; is_instance;
-
-Each entity type in |cubicweb| has at least the following meta-data attributes and relations:
-
-`eid`
-  entity's identifier which is unique in an instance. We usually call this identifier `eid` for historical reason.
-
-`creation_date`
-  Date and time of the creation of the entity.
-
-`modification_date`
-  Date and time of the latest modification of an entity.
-
-`cwuri`
-  Reference URL of the entity, which is not expected to change.
-
-`created_by`
-  Relation to the :ref:`users <CWUser>` who has created the entity
-
-`owned_by`
-  Relation to :ref:`users <CWUser>` whom the entity belongs; usually the creator but not
-  necessary, and it could have multiple owners notably for permission control
-
-`is`
-  Relation to the :ref:`entity type <CWEType>` of which type the entity is.
-
-`is_instance`
-  Relation to the :ref:`entity types <CWEType>` of which type the
-  entity is an instance of.
-