diff -r 1de74ac0628f -r 31b3d00edb8a src/source/admln_guide/appmanage.rst
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+++ b/src/source/admln_guide/appmanage.rst	Tue Dec 11 16:29:56 2018 +0100
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+.. _appmanage:
+
+.. _site:
+
+
+PyAMS admin site
+================
+
+PyAMS admin site (called also **ZMI**, in memory of old **\Z**\ope **\M**\anagement **\I**\nterface) is based on the ZODB.
+
+When the PyAMS is initialized, it create and register several utilities into the *local registry* and saved into ZODB.
+These utilities are created with default values which can be modified through **management interface** when
+the application is started by default (http://localhost:6543/admin).
+
+
+Local registry utilities
+''''''''''''''''''''''''
+
+One of PyAMS pre-requisites is to use the ZODB, at least to store the site root application,
+it's configuration and a set of local utilities.
+
+Some important utilities include:
+
+**Catalog**:
+    The catalog has the responsibility to index every content properties which are required to make quick
+    and efficient searches. Catalog indexes are automatically created on database upgrade; management interface
+    allows administrator to get indexes properties, to get the number of indexed objects and values for a given index, and
+    to delete an index before recreating it by running the database upgrade script another time (see :ref:`scripts`).
+
+**Internal IDs** utility:
+    The catalog object doesn't store direct references to objects, but their internal IDs which are generated by this
+    utility.
+
+**Language negotiator**:
+    As a web site or application can be localized, this utility allows you to define priorities between language
+    definition options (between *user session*, *browser* end *server*), and to define which languages are available
+    to your users (which is particularly important when managing potentially multi-lingual contents).
+
+    .. tip::
+        Static texts like those displayed into PyAMS management interface are always translated to the language defined
+        into browser language, if available.
+
+**Portal templates** container:
+    Portal templates are used to define *presentation templates* based on *portlets* (see :ref:`pyams_portal`). You can
+    create *local* templates, or create *shared templates* into this utility which can then be reused into several
+    places in your web site.
+
+**Security manager**:
+    This utility is used to define authentication sources which will be available to authenticate your users.
+    :ref:`pyams_security` package provides several authentication modules (like local users, or via OAuth/OAuth2
+    providers); :ref:`pyams_ldap` add authentication plug-in via an LDAP directory.
+
+**Sequential IDs** utility:
+    This utility is used to assign simple sequential IDs to site contents (like sites, news, topics and more); these
+    IDs are simple to identify a given content; several versions of a given content handle by workflow share the same
+    sequential ID.
+
+**Server timezone** utility:
+    Define the timezone server to display date and time accordingly.
+
+**User profiles** container:
+    This utility is used to store information associated to principals through their user profile.
+
+
+Optional utilities can also include:
+
+**Elasticearch content indexer**:
+
+Verifier la connection entre le server ElasticSearch et la l'application PyAMS
+
+**Maps manager**:
+Systeme de cartografie, avec OpenStreeMaps, WMS, GeoPortable, ESRI ou encore Google Maps
+permet de créer des zones catographique²
+
+**Medias converter**:
+
+
+**Tasks scheduler**:
+