diff --git a/src/alire-index.adb b/src/alire-index.adb
index d1864574..84258918 100644
--- a/src/alire-index.adb
+++ b/src/alire-index.adb
@@ -13,6 +13,27 @@ package body Alire.Index is
 
    Master_Entries : Name_Entry_Maps.Map;
 
+   type Reflected_Info (Pack_Len, Id_Len : Positive) is record
+      Package_Name : String (1 .. Pack_Len);
+      Identifier   : String (1 .. Id_Len);
+   end record;
+
+   --------------
+   -- Identify --
+   --------------
+
+   function Identify (Enclosing : String) return Reflected_Info is
+      use Utils;
+      Identifier : constant String := -- Portion after last dot
+                     Split (Enclosing, '.', Side => Tail, From => Tail);
+      Full_Name  : constant String := -- Portion after Alire.Index.
+                     Split (Enclosing, '.', Side => Tail, From => Head, Count => 2);
+      Pack_Name  : constant String := -- Portion between Alire.Index. and .Identifier
+                     Split (Full_Name, '.', Side => Head, From => Tail);
+   begin
+      return (Pack_Name'Length, Identifier'Length, Pack_Name, Identifier);
+   end Identify;
+
    ------------------------
    -- Catalogued_Project --
    ------------------------
@@ -200,6 +221,10 @@ package body Alire.Index is
                             (Project => Extension.Project));
    end Register;
 
+   function Base_Release return Release is (raise Program_Error);
+
+   function Derived_Release return Release is (raise Program_Error);
+
    ------------
    -- Bypass --
    ------------
diff --git a/src/alire-index.ads b/src/alire-index.ads
index 9287941e..3650aad3 100644
--- a/src/alire-index.ads
+++ b/src/alire-index.ads
@@ -106,6 +106,29 @@ package Alire.Index is
    --  A extension name is parent:name (e.g.: adayaml:server)
    --  It inherits all properties (including project files)
    
+   ------------------------------------------------------------------
+   --  NEW INDEXING FACILITIES USING Enclosing_Entity for the version
+   
+   generic
+      Origin             : Origins.Origin;
+      -- we force naming beyond this point with this ugly guard:
+      XXXXXXXXXXXXXX     : Utils.XXX_XXX         := Utils.XXX_XXX_XXX;
+      --  Optional 
+      Notes              : Description_String    := "";
+      Dependencies       : Release_Dependencies  := No_Dependencies;
+      Properties         : Release_Properties    := No_Properties;                      
+      Private_Properties : Release_Properties    := No_Properties;
+      Available_When     : Release_Requisites    := No_Requisites;
+   function Base_Release return Release;
+   --  Fulfills the same role as the first Register form above
+   
+   generic
+      Extended_Release : Release;            
+   function Derived_Release return Release;
+   --  Fulfills the same role as the second Register form above
+   
+   ------------------------------------------------------------------
+   
    function Bypass (--  Mandatory
                       This               : Catalog_Entry;
                       Version            : Semantic_Versioning.Version;