diff --git a/doc/model.puml b/doc/model.puml
index ce1d9ce..50a4c72 100644
--- a/doc/model.puml
+++ b/doc/model.puml
@@ -1,7 +1,7 @@
 @startuml oclib
 
 
-abstract Ressource {
+abstract Resource{
     +UUID: int
     +name: string
     +icon: string
@@ -57,7 +57,7 @@ class WorkflowSchedule {
 
 class Graph {
     +UUID: int
-    +ressources: map[GraphicElement.UUID]Ressource 
+    +ressources: map[GraphicElement.UUID]Resource
     +links: Link[] 
 }
 
@@ -107,16 +107,60 @@ class Graph {
 }
 
 
+class Workspace {
+    +UUID: int
+    +name: string
+    +resources: ResourceSet[]
+    +peers: Peer[]
+}
+
+class Peer {
+    +UUID: int
+    +name: string
+    +url: string
+}
+
+class SharedWorkspace {
+    +UUID: int
+    +name: string
+    +version: string
+    +description: string
+    +attributes: map[string]string
+    +workspaces: Workspace[]
+    +workflows: Workflow[]
+    +peers: Peer[]
+}
+
+class RuleSet {
+    +UUID: int
+    +name: string
+    +description: string
+    +rules: Rule[]
+}
+class Rule {
+    +UUID: int
+    +name: string
+    +description: string
+    +condition: string
+    +action: string
+}
+
+SharedWorkspace "1" o-- "0..*" Workspace
+SharedWorkspace "1" o-- "0..*" Peer
+Workspace "1" o-- "0..*" ResourceSet
+Peer -- Resource
+RuleSet "1" o-- "0..*" Rule
+SharedWorkspace -- RuleSet
 
 UserWorkflows "1" o-- "0..*" Workflow
 
 DatacenterWorkflows "1" o-- "0..*" Workflow
 
-Ressource <|-- DataResource
-Ressource <|-- ProcessingResource
-Ressource <|-- StorageResource
-Ressource <|-- DatacenterResource
-Ressource <|-- Workflow
+Resource<|-- DataResource
+Resource<|-- ProcessingResource
+Resource<|-- StorageResource
+Resource<|-- DatacenterResource
+Resource<|-- Workflow
 
 ResourceSet "1" o-- "0..*" Ressource
 
@@ -127,7 +171,7 @@ Workflow "1" o-- "0..*" Graph
 Graph "1" o-- "0..*" Resources
 Graph "1" o-- "0..*" Link
 
-Ressource --o GraphicElement
+Resource--o GraphicElement
 Link -- GraphicLink