diff --git a/SDT/schema4.0/docs/SDT_UML.uxf b/SDT/schema4.0/docs/SDT_UML.uxf
index 012b2880f4c80dafd32cb236065f775234820d63..139b16824bf4f6c79034f00594b86cd51f6b942c 100644
--- a/SDT/schema4.0/docs/SDT_UML.uxf
+++ b/SDT/schema4.0/docs/SDT_UML.uxf
@@ -1,763 +1,802 @@
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-/@ optional elementAttribute = default value/
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-- mandatory element : Subclass  (exact one)
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-/* optionalElement : SubClass      (zero or many)/
-
-"Depends" Relation
-and Cardinality
-
-Subclassing
-
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---
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+/- optionalElement : SubClass      (zero or one)/
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+
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+1     : exact one
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+1..* : at least one or many
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+boolean
+byte
+integer
+float
+string
+enum
+date
+time
+datetime
+blob
+uri</panel_attributes>
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+/@ unitOfMeasure : text/
+/- Doc : Doc/
+- TypeChoice
+/* Constraints : Constraint/
+fg=blue</panel_attributes>
+    <additional_attributes/>
+  </element>
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+      <y>826</y>
+      <w>490</w>
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+      <y>952</y>
+      <w>133</w>
+      <h>35</h>
+    </coordinates>
+    <panel_attributes>SimpleType
+--
+*@ type : BasicType*
+fg=blue</panel_attributes>
+    <additional_attributes/>
+  </element>
+  <element>
+    <id>Relation</id>
+    <coordinates>
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+      <y>1008</y>
+      <w>133</w>
+      <h>70</h>
+    </coordinates>
+    <panel_attributes>Constraint
+--
+*@ name : text*
+/@ type : BasicType/
+/@ value : text/
+/- Doc : Doc/
+fg=blue</panel_attributes>
+    <additional_attributes/>
+  </element>
+  <element>
+    <id>Relation</id>
+    <coordinates>
+      <x>392</x>
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+      <y>868</y>
+      <w>133</w>
+      <h>35</h>
+    </coordinates>
+    <panel_attributes>StructType
+--
+- DataType : DataType
+fg=blue</panel_attributes>
+    <additional_attributes/>
+  </element>
+  <element>
+    <id>UMLClass</id>
+    <coordinates>
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+      <y>910</y>
+      <w>133</w>
+      <h>35</h>
+    </coordinates>
+    <panel_attributes>ArrayType
+--
+- DataType : DataType
+fg=blue</panel_attributes>
+    <additional_attributes/>
+  </element>
+  <element>
+    <id>Relation</id>
+    <coordinates>
+      <x>602</x>
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+  <element>
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+    <coordinates>
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+      <y>763</y>
+      <w>735</w>
+      <h>28</h>
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+SDT 4.0 - DataType
+fontsize=24
+bg=gray
+lw=0.1</panel_attributes>
+    <additional_attributes/>
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+  <element>
+    <id>UMLClass</id>
+    <coordinates>
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+      <y>98</y>
+      <w>840</w>
+      <h>28</h>
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+    <panel_attributes>SDT 4.0 - Basic Elements
+halign=center
+fontsize=24
+bg=gray
+lw=0.1</panel_attributes>
+    <additional_attributes/>
+  </element>
+  <element>
+    <id>UMLClass</id>
+    <coordinates>
+      <x>504</x>
+      <y>217</y>
+      <w>154</w>
+      <h>119</h>
+    </coordinates>
+    <panel_attributes>ModuleClass
+--
+*@ name : text*
+/@ optional : boolean = false/
+/- Doc : Doc/
+/- Extends : Extends/
+/* Properties : Property/
+/* Actions : Action/
+/* Data : DataPoint/
+/* Events : Event/
+fg=blue
+</panel_attributes>
+    <additional_attributes/>
+  </element>
+  <element>
+    <id>UMLClass</id>
+    <coordinates>
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+      <y>217</y>
+      <w>154</w>
+      <h>77</h>
+    </coordinates>
+    <panel_attributes>Action
+--
+*@ name : text*
+/@ optional : boolean = false/
+/- Doc : Doc/
+/- DataType : DataType/
+/* Args : Arg/
+fg=blue</panel_attributes>
+    <additional_attributes/>
+  </element>
+  <element>
+    <id>UMLClass</id>
+    <coordinates>
+      <x>1008</x>
+      <y>280</y>
+      <w>119</w>
+      <h>56</h>
+    </coordinates>
+    <panel_attributes>Arg
+--
+*@ name ; text*
+/- Doc : Doc/
+- DataType : DataType
+fg=blue</panel_attributes>
+    <additional_attributes/>
+  </element>
+  <element>
+    <id>Relation</id>
+    <coordinates>
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+      <y>280</y>
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+      <h>28</h>
+    </coordinates>
+    <panel_attributes>lt=&lt;.
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+    <additional_attributes>170.0;10.0;10.0;10.0</additional_attributes>
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+  <element>
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+    <coordinates>
+      <x>266</x>
+      <y>217</y>
+      <w>154</w>
+      <h>77</h>
+    </coordinates>
+    <panel_attributes>Domain
+--
+*@ id : ID*
+/- Doc : Doc/
+/* imports/
+/* ModuleClasses : ModuleClass/
+/* Devices : Device/
+fg=blue</panel_attributes>
+    <additional_attributes/>
+  </element>
+  <element>
+    <id>Relation</id>
+    <coordinates>
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+      <y>217</y>
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+    <panel_attributes>lt=&lt;.
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+  </element>
+  <element>
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+      <y>399</y>
+      <w>154</w>
+      <h>70</h>
+    </coordinates>
+    <panel_attributes>SubDevice
+--
+*@ id : Name*
+/- Doc : Doc/
+/* Properties : Property/
+/* ModuleClasses : ModuleClass/
+fg=blue</panel_attributes>
+    <additional_attributes/>
+  </element>
+  <element>
+    <id>Relation</id>
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+      <w>119</w>
+      <h>35</h>
+    </coordinates>
+    <panel_attributes>Doc
+--
+fg=blue</panel_attributes>
+    <additional_attributes/>
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+  <element>
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+      <w>154</w>
+      <h>98</h>
+    </coordinates>
+    <panel_attributes>DataPoint
+--
+*@ name : text*
+/@ optional : boolean = false/
+/@ writable : boolean = true/
+/@ readable : boolean = true/
+/@ eventable : boolean = false/
+/- Doc : Doc/
+- DataType : DataType
+
+fg=blue
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+  <element>
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+    <coordinates>
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+      <y>420</y>
+      <w>154</w>
+      <h>63</h>
+    </coordinates>
+    <panel_attributes>Event
+--
+*@ name : text*
+/@ optional : boolean = false/
+/- Doc : Doc/
+/* Data : DataPoint/
+
+fg=blue</panel_attributes>
+    <additional_attributes/>
+  </element>
+  <element>
+    <id>Relation</id>
+    <coordinates>
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+</panel_attributes>
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+  <element>
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+      <w>154</w>
+      <h>77</h>
+    </coordinates>
+    <panel_attributes>DeviceClass
+--
+*@ id : Name*
+/- Doc : Doc/
+/* Properties : Property/
+/* ModuleClasses : ModuleClass/
+/* SubDevices : SubDevice/
+fg=blue</panel_attributes>
+    <additional_attributes/>
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+  <element>
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+    <coordinates>
+      <x>504</x>
+      <y>406</y>
+      <w>154</w>
+      <h>77</h>
+    </coordinates>
+    <panel_attributes>Property
+--
+*@ name : text*
+/@ optional : boolean = false/
+/@ value : text/
+/- Doc : Doc/
+- DataType : SimpleType
+fg=blue</panel_attributes>
+    <additional_attributes/>
+  </element>
+  <element>
+    <id>Relation</id>
+    <coordinates>
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+      <w>133</w>
+      <h>70</h>
+    </coordinates>
+    <panel_attributes>&lt;&lt;enumeration&gt;&gt;
+TypeChoice
+--
+SimpleType : SimpleType
+Struct : StructType
+Array : ArrayType 
+
+</panel_attributes>
+    <additional_attributes/>
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+  <element>
+    <id>Relation</id>
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+      <w>210</w>
+      <h>147</h>
+    </coordinates>
+    <panel_attributes>Product
+--
+*@ id : Name*
+/- Doc : Doc/
+/* Properties : Property/
+/* ModuleClasses : ModuleClass/
+/* SubDevices : SubDevice/
+/- DeviceClass/
+/   @domain : IDRF/
+/   @class : id /
+/   -ImplementedProperties : Property /
+/   -ImplementedModuleClasses : ModuleClass  /
+/- Extends : Extends/
+fg=blue</panel_attributes>
+    <additional_attributes/>
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+      <h>35</h>
+    </coordinates>
+    <panel_attributes>lt=&lt;.
+m1=0..*
+</panel_attributes>
+    <additional_attributes>80.0;20.0;10.0;20.0</additional_attributes>
+  </element>
+  <element>
+    <id>UMLClass</id>
+    <coordinates>
+      <x>266</x>
+      <y>546</y>
+      <w>119</w>
+      <h>56</h>
+    </coordinates>
+    <panel_attributes>Extends
+--
+*@domain : IDRF*
+*@class : id*
+/- exclude : Exclude/
+
+fg=blue</panel_attributes>
+    <additional_attributes/>
+  </element>
+  <element>
+    <id>UMLClass</id>
+    <coordinates>
+      <x>504</x>
+      <y>546</y>
+      <w>154</w>
+      <h>49</h>
+    </coordinates>
+    <panel_attributes>Exclude
+--
+*@name : text*
+/@type : text = datapoint/
+fg=blue</panel_attributes>
+    <additional_attributes/>
+  </element>
+  <element>
+    <id>Relation</id>
+    <coordinates>
+      <x>378</x>
+      <y>546</y>
+      <w>140</w>
+      <h>56</h>
+    </coordinates>
+    <panel_attributes>lt=&lt;.
+m1= 0..*</panel_attributes>
+    <additional_attributes>180.0;10.0;90.0;10.0;90.0;60.0;10.0;60.0</additional_attributes>
+  </element>
+</diagram>