diff --git a/__pycache__/app.cpython-313.pyc b/__pycache__/app.cpython-313.pyc
index a39f09a..7cd674d 100644
Binary files a/__pycache__/app.cpython-313.pyc and b/__pycache__/app.cpython-313.pyc differ
diff --git a/__pycache__/models.cpython-313.pyc b/__pycache__/models.cpython-313.pyc
index f8a220e..f868725 100644
Binary files a/__pycache__/models.cpython-313.pyc and b/__pycache__/models.cpython-313.pyc differ
diff --git a/app.py b/app.py
index 34940a5..faaf2a2 100644
--- a/app.py
+++ b/app.py
@@ -29,9 +29,10 @@ import os
 
 # Modelle importieren
 from models import (
-    db, User, Thought, Comment, MindMapNode, ThoughtRelation, ThoughtRating, 
-    RelationType, Category, UserMindmap, UserMindmapNode, MindmapNote, 
-    node_thought_association, user_thought_bookmark, node_relationship
+    db, User, Thought, Comment, MindMapNode, ThoughtRelation, ThoughtRating,
+    RelationType, Category, UserMindmap, UserMindmapNode, MindmapNote,
+    node_thought_association, user_thought_bookmark, node_relationship,
+    MindmapShare, PermissionType
 )
 
 # Lade .env-Datei
diff --git a/database/systades.db b/database/systades.db
index efc21de..a528d12 100644
Binary files a/database/systades.db and b/database/systades.db differ
diff --git a/logs/app.log b/logs/app.log
index 49be42e..3d3804f 100644
--- a/logs/app.log
+++ b/logs/app.log
@@ -13,3 +13,9 @@
 2025-05-10 23:14:44,251 INFO: Anwendung gestartet [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:75]
 2025-05-10 23:14:46,088 INFO: Anwendung gestartet [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:75]
 2025-05-10 23:14:46,088 INFO: Anwendung gestartet [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:75]
+2025-05-10 23:15:14,106 INFO: Anwendung gestartet [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:75]
+2025-05-10 23:15:15,855 INFO: Anwendung gestartet [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:75]
+2025-05-10 23:15:15,855 INFO: Anwendung gestartet [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:75]
+2025-05-10 23:15:30,739 INFO: Anwendung gestartet [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:76]
+2025-05-10 23:15:32,667 INFO: Anwendung gestartet [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:76]
+2025-05-10 23:15:32,667 INFO: Anwendung gestartet [in C:\Users\TTOMCZA.EMEA\Dev\website\app.py:76]
diff --git a/models.py b/models.py
index e275d1b..ca8573a 100644
--- a/models.py
+++ b/models.py
@@ -359,4 +359,33 @@ class ForumPost(db.Model):
     replies = db.relationship('ForumPost', backref=db.backref('parent', remote_side=[id]), lazy=True)
     
     def __repr__(self):
-        return f'<ForumPost {self.title}>' 
\ No newline at end of file
+        return f'<ForumPost {self.title}>'
+
+# Berechtigungstypen für Mindmap-Freigaben
+class PermissionType(Enum):
+    READ = "Nur-Lesen"
+    EDIT = "Bearbeiten"
+    ADMIN = "Administrator"
+
+# Freigabemodell für Mindmaps
+class MindmapShare(db.Model):
+    """Speichert Informationen über freigegebene Mindmaps und Berechtigungen"""
+    id = db.Column(db.Integer, primary_key=True)
+    mindmap_id = db.Column(db.Integer, db.ForeignKey('user_mindmap.id'), nullable=False)
+    shared_by_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
+    shared_with_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
+    permission_type = db.Column(db.Enum(PermissionType), nullable=False, default=PermissionType.READ)
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    last_accessed = db.Column(db.DateTime, nullable=True)
+    
+    # Beziehungen
+    mindmap = db.relationship('UserMindmap', backref=db.backref('shares', lazy='dynamic'))
+    shared_by = db.relationship('User', foreign_keys=[shared_by_id], backref=db.backref('shared_mindmaps', lazy='dynamic'))
+    shared_with = db.relationship('User', foreign_keys=[shared_with_id], backref=db.backref('accessible_mindmaps', lazy='dynamic'))
+    
+    __table_args__ = (
+        db.UniqueConstraint('mindmap_id', 'shared_with_id', name='unique_mindmap_share'),
+    )
+    
+    def __repr__(self):
+        return f'<MindmapShare: {self.mindmap_id} - {self.shared_with_id} - {self.permission_type.name}>'
\ No newline at end of file