diff --git a/writerfilter/source/ooxml/model.xml b/writerfilter/source/ooxml/model.xml
index c7ca502165e6..13bd0d963776 100644
--- a/writerfilter/source/ooxml/model.xml
+++ b/writerfilter/source/ooxml/model.xml
@@ -1,4 +1,182 @@
 <?xml version="1.0" encoding="UTF-8"?>
+    <!--
+        = Format of <resource> elements =
+
+        A <resource> element A always refers to exactly one <define>
+        element inside the parent <namespace> element of A.
+
+        In the following XPath expressions are used to denote class
+        names etc. <resource> is denoted as the current resource node
+        <resource name="name">. <define> is denoted as the current
+        define node <define name="name">.
+
+        For each <define> whose name starts with 'CT_' or 'EG_' a
+        class OOXMLContext.<define>/@name is generated. This class is
+        directly or indirectly derived from OOXMLContext. If there is
+        a <resource> for a certain <define> the according class
+        OOXMLContext.<define>/@name is derived from
+        OOXMLContext.<resource>/@resource. The latter in turn is then
+        derived from OOXMLContext. If there is no <resource> for
+        <define> the generated class is derived directly from
+        OOXMLContext (see OOXMLContext.hxx).
+
+        For each <define> whose name starts with 'ST_' a class
+        OOXML.<define>/@name.Value is generated. This class is
+        directly or indirectly derived from OOXMLValue. If there is a
+        <resource> for a certain <define> the according class
+        OOXML.<define>/@named.Value is derived from
+        OOXML.<resource>/@resource.Value. The latter is in turn
+        derived from OOXMLValue. If there is no <resource> for
+        <define> the generated class is derived directly from
+        OOXMLValue (see OOXMLContext.hxx).
+
+        Attribute     Meaning
+        ====================================================================
+        name          the name of the <define> the <resource> references to.
+
+        resource      the resource for the <define>
+
+                      A class OOXMLContext.<define>/@name will be
+                      generated that is derived from
+                      OOXMLContext.<resource>/@resource
+
+        generated     denotes, that this <resource> is automatically generated.
+
+
+        == Elements with special semantics ==
+
+        === Elements of <resource>[@resource = 'Properties'] ====
+
+        The <define> represents a property set (aka a Properties
+        resource in the WW8ResourceModel). The according class
+        OOXMLContext.<define>/@name gathers the properties. The
+        function OOXMLContextProperties::newProperty inserts a
+        property to the set. When being resolved the class
+        OOXMLContext.<define>/@name sends the properties to handler.
+
+        Element       Attribute
+                      Meaning
+        ====================================================================
+        sprm          name
+
+                      associates <define>/rng:element[@name=name] to this entry
+
+                      tokenid
+
+                      When being resolved OOXMLContext.<define>/@name
+                      sends an event sprm(@tokenid, value) to the
+                      handler.
+
+        attribute     name
+
+                      associates <define>/rng:attribute[@name=name] to this entry
+
+                      tokenid
+
+                      When being resolved OOXMLContext.<define>/@name
+                      sends an event attribute(@tokenid, value) to the
+                      handler.
+
+        === Elemets of <resource>[@name='Table'] ===
+
+        The <define> represents a table in the sense of the
+        WW8ResourceModel, e.g. the style sheet, the font table. A
+        class OOXMLContext.<define>/@name will be created that is
+        derived from OOXMLContextTable. When being resolved the class
+        OOXMLContext.<define>/@name sends an entry event to the
+        according handler.
+
+        Attribute    Meaning
+        ====================================================================
+        tokenid      When being resolved the class will send an
+                     entry(@tokenid, ...) to the handler
+
+
+        === Elements of <resource>[@name='List'] ===
+
+        The <define> represents a value in the sense of the resource
+        model. The <value> elements of the <define> define possible
+        instances of this value. A class OOXML.<define>/@name.Value is
+        generated. The constructor of this class takes the instance of
+        the value and sets the mnValue member of the class to the
+        token id defined by the <value> elements of the <resource>.
+
+        Element      Attribute/content
+                     Meaning
+        ====================================================================
+        value        tokenid
+
+                     the token id to use for this value
+
+                     content
+
+                     the value from the according <define>//<value>
+
+        === Elements of <resource>[@resource='XNote'] ===
+
+        These elements are a special case kind of
+        <resource>[@resource='Stream']>. They represent
+        footnotes/endnotes and comments. The resulting class has a
+        property set for the attributes that is resolved when reading
+        the start tag is finished.
+
+        Element      Attribute/content
+                     Meaning
+        ====================================================================
+        attribute    name
+
+                     links to the <rng:attribute> in <define> with the same @name.
+
+                     tokenid
+
+                     an attribute @name in the start tag for <define>
+                     is sent by attribute(@tokenid, value) to the
+                     according handler.
+
+                     action="checkId"
+
+                     when the attribute @name is read checkId(value)
+                     is called on the context for <define>.
+
+
+        == Actions ==
+
+        If there are <action> elements present in a <resource> the follwing actions
+        will be carried out:
+
+
+        Element      Attribute/content
+                     Meaning
+        ====================================================================
+        name         the name of the action:
+
+                     - start    The action is carried out in the startAction method of
+                                the context
+                     - end      The action is carried out in the endAction method of
+                                the context.
+                     - characters   The action is carried out in the characters method of
+                                    the context.
+
+        action       the action to carry out
+
+                     - handleHdrFtr      handle headers and footers
+                     - setLastParagraphInSection     set lastParagraphInSection flag in
+                                                     parser state
+                     - text              send text of current run to handler
+                     - ftnednref         send footnote/endnote reference character
+                     - ftnednsep         send footnote/endnote separation character
+                     - ftmedncont        send footnote/endnote continuation character
+                     - pgNum             send page number character
+                     - endOfParagraph    send end of paragraph
+                     - tab               send tab character
+                     - startCharacterGroup        call startCharacterGroup on context
+                     - endCharacterGroup          call endCharacterGroup on context
+                     - startParagraphGroup        call startParagraphGroup on context
+                     - endParagraphGroup          call endParagraphGroup on context
+                     - startSectionGroup          call startSectionGroup on context
+                     - endSectionGroup            call endSectionGroup on context
+
+    -->
 <model xmlns:rng="http://relaxng.org/ns/structure/1.0">
   <namespace-alias name="http://schemas.openxmlformats.org/drawingml/2006/main" alias="drawingml"/>
   <namespace-alias name="http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing" alias="wordprocessingDrawing"/>