diff --git a/assets/app.js b/assets/app.js
index 094c377..5073754 100644
--- a/assets/app.js
+++ b/assets/app.js
@@ -187,3 +187,9 @@ if (savedPrimary || savedSurface) {
 const authStore = useAuthStore();
 authStore.initializeFromElement();
 
+// Load user permissions
+import { usePermissionStore } from './js/stores/permissions';
+const permissionStore = usePermissionStore();
+if (authStore.isAuthenticated) {
+    permissionStore.loadPermissions();
+}
diff --git a/assets/js/components/CrudDataTable.vue b/assets/js/components/CrudDataTable.vue
index e1227f6..bc4b4da 100644
--- a/assets/js/components/CrudDataTable.vue
+++ b/assets/js/components/CrudDataTable.vue
@@ -88,6 +88,16 @@
               <slot name="actions" v-bind="slotProps">
                 <div class="flex gap-2">
                   <Button
+                    v-if="showViewButton"
+                    icon="pi pi-eye"
+                    outlined
+                    rounded
+                    @click="$emit('view', slotProps.data)"
+                    size="small"
+                    severity="secondary"
+                  />
+                  <Button
+                    v-if="showEditButton"
                     icon="pi pi-pencil"
                     outlined
                     rounded
@@ -95,6 +105,7 @@
                     size="small"
                   />
                   <Button
+                    v-if="showDeleteButton"
                     icon="pi pi-trash"
                     outlined
                     rounded
@@ -161,6 +172,18 @@ const props = defineProps({
     type: Boolean, 
     default: true 
   },
+  showViewButton: {
+    type: Boolean,
+    default: false
+  },
+  showEditButton: {
+    type: Boolean,
+    default: true
+  },
+  showDeleteButton: {
+    type: Boolean,
+    default: true
+  },
   emptyMessage: { 
     type: String, 
     default: 'Keine Daten gefunden.' 
@@ -171,7 +194,7 @@ const props = defineProps({
   }
 })
 
-const emit = defineEmits(['create', 'edit', 'delete', 'data-loaded'])
+const emit = defineEmits(['create', 'edit', 'delete', 'view', 'data-loaded'])
 
 const toast = useToast()
 const data = ref([])
diff --git a/assets/js/stores/permissions.js b/assets/js/stores/permissions.js
new file mode 100644
index 0000000..f3f2f02
--- /dev/null
+++ b/assets/js/stores/permissions.js
@@ -0,0 +1,68 @@
+import { ref } from 'vue'
+import { defineStore } from 'pinia'
+
+export const usePermissionStore = defineStore('permissions', () => {
+  const permissions = ref({})
+  const isAdmin = ref(false)
+  const loaded = ref(false)
+
+  async function loadPermissions() {
+    try {
+      const response = await fetch('/api/permissions', {
+        credentials: 'include'
+      })
+      
+      if (response.ok) {
+        const data = await response.json()
+        permissions.value = data.permissions
+        isAdmin.value = data.isAdmin
+        loaded.value = true
+      }
+    } catch (error) {
+      console.error('Failed to load permissions:', error)
+    }
+  }
+
+  function hasPermission(module, action) {
+    if (isAdmin.value) return true
+    return permissions.value[module]?.[action] || false
+  }
+
+  function canView(module) {
+    return hasPermission(module, 'view')
+  }
+
+  function canCreate(module) {
+    return hasPermission(module, 'create')
+  }
+
+  function canEdit(module) {
+    return hasPermission(module, 'edit')
+  }
+
+  function canDelete(module) {
+    return hasPermission(module, 'delete')
+  }
+
+  function canExport(module) {
+    return hasPermission(module, 'export')
+  }
+
+  function canManage(module) {
+    return hasPermission(module, 'manage')
+  }
+
+  return {
+    permissions,
+    isAdmin,
+    loaded,
+    loadPermissions,
+    hasPermission,
+    canView,
+    canCreate,
+    canEdit,
+    canDelete,
+    canExport,
+    canManage
+  }
+})
diff --git a/assets/js/views/ContactManagement.vue b/assets/js/views/ContactManagement.vue
index cd20fe3..eeea033 100644
--- a/assets/js/views/ContactManagement.vue
+++ b/assets/js/views/ContactManagement.vue
@@ -7,6 +7,10 @@
       :columns="contactColumns"
       data-source="/api/contacts"
       storage-key="contactTableColumns"
+      :show-view-button="canView"
+      :show-edit-button="canEdit"
+      :show-delete-button="canDelete"
+      @view="viewContact"
       @create="openNewContactDialog"
       @edit="editContact"
       @delete="confirmDelete"
@@ -353,12 +357,192 @@
         <Button label="Löschen" severity="danger" @click="deleteContact" :loading="deleting" />
       </template>
     </Dialog>
+
+    <!-- View Contact Dialog (Read-Only) -->
+    <Dialog
+      v-model:visible="viewDialog"
+      header="Kontakt anzeigen"
+      :modal="true"
+      :style="{ width: '800px' }"
+    >
+      <div v-if="viewingContact" class="flex flex-col gap-4">
+        <!-- Company Information -->
+        <div class="font-semibold">Firmeninformationen</div>
+        <div class="grid grid-cols-2 gap-4">
+          <div class="flex flex-col gap-2">
+            <label class="font-medium text-sm text-500">Firmenname</label>
+            <div>{{ viewingContact.companyName }}</div>
+          </div>
+
+          <div class="flex flex-col gap-2">
+            <label class="font-medium text-sm text-500">Kundennummer</label>
+            <div>{{ viewingContact.companyNumber || '-' }}</div>
+          </div>
+        </div>
+
+        <!-- Address -->
+        <Divider />
+        <div class="font-semibold">Adresse</div>
+        <div class="grid grid-cols-2 gap-4">
+          <div class="flex flex-col gap-2 col-span-2">
+            <label class="font-medium text-sm text-500">Straße</label>
+            <div>{{ viewingContact.street || '-' }}</div>
+          </div>
+
+          <div class="flex flex-col gap-2">
+            <label class="font-medium text-sm text-500">PLZ</label>
+            <div>{{ viewingContact.zipCode || '-' }}</div>
+          </div>
+
+          <div class="flex flex-col gap-2">
+            <label class="font-medium text-sm text-500">Ort</label>
+            <div>{{ viewingContact.city || '-' }}</div>
+          </div>
+
+          <div class="flex flex-col gap-2 col-span-2">
+            <label class="font-medium text-sm text-500">Land</label>
+            <div>{{ viewingContact.country || '-' }}</div>
+          </div>
+        </div>
+
+        <!-- Contact Information -->
+        <Divider />
+        <div class="font-semibold">Kontaktinformationen</div>
+        <div class="grid grid-cols-2 gap-4">
+          <div class="flex flex-col gap-2">
+            <label class="font-medium text-sm text-500">Telefon</label>
+            <div>
+              <a v-if="viewingContact.phone" :href="'tel:' + viewingContact.phone" class="text-primary">
+                {{ viewingContact.phone }}
+              </a>
+              <span v-else>-</span>
+            </div>
+          </div>
+
+          <div class="flex flex-col gap-2">
+            <label class="font-medium text-sm text-500">Fax</label>
+            <div>{{ viewingContact.fax || '-' }}</div>
+          </div>
+
+          <div class="flex flex-col gap-2">
+            <label class="font-medium text-sm text-500">E-Mail</label>
+            <div>
+              <a v-if="viewingContact.email" :href="'mailto:' + viewingContact.email" class="text-primary">
+                {{ viewingContact.email }}
+              </a>
+              <span v-else>-</span>
+            </div>
+          </div>
+
+          <div class="flex flex-col gap-2">
+            <label class="font-medium text-sm text-500">Website</label>
+            <div>
+              <a v-if="viewingContact.website" :href="viewingContact.website" target="_blank" class="text-primary">
+                {{ viewingContact.website }}
+              </a>
+              <span v-else>-</span>
+            </div>
+          </div>
+        </div>
+
+        <!-- Tax Information -->
+        <Divider />
+        <div class="font-semibold">Steuerinformationen</div>
+        <div class="grid grid-cols-2 gap-4">
+          <div class="flex flex-col gap-2">
+            <label class="font-medium text-sm text-500">Steuernummer</label>
+            <div>{{ viewingContact.taxNumber || '-' }}</div>
+          </div>
+
+          <div class="flex flex-col gap-2">
+            <label class="font-medium text-sm text-500">USt-IdNr.</label>
+            <div>{{ viewingContact.vatNumber || '-' }}</div>
+          </div>
+        </div>
+
+        <!-- Type and Status -->
+        <Divider />
+        <div class="font-semibold">Typ und Status</div>
+        <div class="flex flex-wrap gap-2">
+          <Tag v-if="viewingContact.isDebtor" value="Debitor" severity="success" />
+          <Tag v-if="viewingContact.isCreditor" value="Kreditor" severity="warning" />
+          <Tag :value="viewingContact.isActive ? 'Aktiv' : 'Inaktiv'" 
+               :severity="viewingContact.isActive ? 'success' : 'secondary'" />
+        </div>
+
+        <!-- Notes -->
+        <Divider />
+        <div class="flex flex-col gap-2">
+          <label class="font-medium text-sm text-500">Notizen</label>
+          <div class="whitespace-pre-wrap">{{ viewingContact.notes || '-' }}</div>
+        </div>
+
+        <!-- Contact Persons -->
+        <Divider />
+        <div class="font-semibold">Ansprechpartner</div>
+        <div v-if="viewingContact.contactPersons?.length > 0" class="flex flex-col gap-3">
+          <div v-for="(person, index) in viewingContact.contactPersons" :key="index" 
+               class="border p-3 rounded-md">
+            <div class="flex justify-between items-start mb-3">
+              <div class="font-medium">
+                {{ person.salutation }} {{ person.title }} {{ person.firstName }} {{ person.lastName }}
+                <Tag v-if="person.isPrimary" value="Primär" severity="info" class="ml-2" />
+              </div>
+            </div>
+
+            <div class="grid grid-cols-2 gap-3 text-sm">
+              <div v-if="person.position">
+                <span class="text-500">Position:</span> {{ person.position }}
+              </div>
+              <div v-if="person.department">
+                <span class="text-500">Abteilung:</span> {{ person.department }}
+              </div>
+              <div v-if="person.phone">
+                <span class="text-500">Telefon:</span> 
+                <a :href="'tel:' + person.phone" class="text-primary">{{ person.phone }}</a>
+              </div>
+              <div v-if="person.mobile">
+                <span class="text-500">Mobil:</span> 
+                <a :href="'tel:' + person.mobile" class="text-primary">{{ person.mobile }}</a>
+              </div>
+              <div v-if="person.email" class="col-span-2">
+                <span class="text-500">E-Mail:</span> 
+                <a :href="'mailto:' + person.email" class="text-primary">{{ person.email }}</a>
+              </div>
+            </div>
+          </div>
+        </div>
+        <div v-else class="text-500">Keine Ansprechpartner</div>
+
+        <!-- Timestamps -->
+        <Divider />
+        <div class="grid grid-cols-2 gap-4 text-sm text-500">
+          <div>
+            <span class="font-medium">Erstellt am:</span> {{ formatDate(viewingContact.createdAt) }}
+          </div>
+          <div>
+            <span class="font-medium">Zuletzt geändert:</span> {{ formatDate(viewingContact.updatedAt) }}
+          </div>
+        </div>
+      </div>
+
+      <template #footer>
+        <Button label="Schließen" @click="viewDialog = false" />
+        <Button 
+          v-if="canEdit"
+          label="Bearbeiten" 
+          icon="pi pi-pencil" 
+          @click="editFromView" 
+        />
+      </template>
+    </Dialog>
   </div>
 </template>
 
 <script setup>
-import { ref } from 'vue'
+import { ref, computed, onMounted } from 'vue'
 import { useToast } from 'primevue/usetoast'
+import { usePermissionStore } from '../stores/permissions'
 import CrudDataTable from '../components/CrudDataTable.vue'
 import Dialog from 'primevue/dialog'
 import Button from 'primevue/button'
@@ -371,6 +555,13 @@ import Divider from 'primevue/divider'
 
 const toast = useToast()
 const tableRef = ref(null)
+const permissionStore = usePermissionStore()
+
+// Permissions
+const canView = computed(() => permissionStore.canView('contacts'))
+const canCreate = computed(() => permissionStore.canCreate('contacts'))
+const canEdit = computed(() => permissionStore.canEdit('contacts'))
+const canDelete = computed(() => permissionStore.canDelete('contacts'))
 
 // Column definitions
 const contactColumns = [
@@ -396,8 +587,10 @@ const contactColumns = [
 
 // State
 const contactDialog = ref(false)
+const viewDialog = ref(false)
 const deleteDialog = ref(false)
 const editingContact = ref(null)
+const viewingContact = ref(null)
 const submitted = ref(false)
 const saving = ref(false)
 const deleting = ref(false)
@@ -470,6 +663,11 @@ const openNewContactDialog = () => {
   contactDialog.value = true
 }
 
+const viewContact = (contact) => {
+  viewingContact.value = { ...contact }
+  viewDialog.value = true
+}
+
 const editContact = (contact) => {
   editingContact.value = { ...contact }
   submitted.value = false
@@ -600,6 +798,13 @@ const setPrimaryContact = (index) => {
   }
 }
 
+const editFromView = () => {
+  editingContact.value = { ...viewingContact.value }
+  viewDialog.value = false
+  submitted.value = false
+  contactDialog.value = true
+}
+
 const onDataLoaded = (data) => {
   // Optional: Do something when data is loaded
 }
diff --git a/src/Controller/PermissionController.php b/src/Controller/PermissionController.php
new file mode 100644
index 0000000..ea14a33
--- /dev/null
+++ b/src/Controller/PermissionController.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace App\Controller;
+
+use App\Entity\User;
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\Routing\Attribute\Route;
+use Symfony\Component\Security\Http\Attribute\IsGranted;
+
+#[IsGranted('ROLE_USER')]
+class PermissionController extends AbstractController
+{
+    #[Route('/api/permissions', name: 'api_permissions', methods: ['GET'])]
+    public function getPermissions(): JsonResponse
+    {
+        /** @var User|null $user */
+        $user = $this->getUser();
+        
+        if (!$user) {
+            return new JsonResponse(['error' => 'Not authenticated'], 401);
+        }
+
+        $permissions = [];
+        
+        // Liste aller Module die geprüft werden sollen
+        $modules = ['contacts', 'users', 'roles', 'settings'];
+        
+        foreach ($modules as $module) {
+            $permissions[$module] = [
+                'view' => $user->hasModulePermission($module, 'view'),
+                'create' => $user->hasModulePermission($module, 'create'),
+                'edit' => $user->hasModulePermission($module, 'edit'),
+                'delete' => $user->hasModulePermission($module, 'delete'),
+                'export' => $user->hasModulePermission($module, 'export'),
+                'manage' => $user->hasModulePermission($module, 'manage'),
+            ];
+        }
+
+        return new JsonResponse([
+            'permissions' => $permissions,
+            'isAdmin' => in_array('ROLE_ADMIN', $user->getRoles())
+        ]);
+    }
+}
diff --git a/src/Entity/Contact.php b/src/Entity/Contact.php
index 8f093ad..a535999 100644
--- a/src/Entity/Contact.php
+++ b/src/Entity/Contact.php
@@ -11,6 +11,7 @@ use ApiPlatform\Metadata\GetCollection;
 use ApiPlatform\Metadata\Post;
 use ApiPlatform\Metadata\Put;
 use ApiPlatform\Metadata\Delete;
+use App\Entity\Interface\ModuleAwareInterface;
 use App\Repository\ContactRepository;
 use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Common\Collections\Collection;
@@ -23,11 +24,26 @@ use Symfony\Component\Validator\Constraints as Assert;
 #[ORM\Table(name: 'contacts')]
 #[ApiResource(
     operations: [
-        new GetCollection(stateless: false),
-        new Get(stateless: false),
-        new Post(security: "is_granted('ROLE_USER')", stateless: false),
-        new Put(security: "is_granted('ROLE_USER')", stateless: false),
-        new Delete(security: "is_granted('ROLE_ADMIN')", stateless: false)
+        new GetCollection(
+            security: "is_granted('VIEW', 'contacts')",
+            stateless: false
+        ),
+        new Get(
+            security: "is_granted('VIEW', object)",
+            stateless: false
+        ),
+        new Post(
+            security: "is_granted('CREATE', 'contacts')",
+            stateless: false
+        ),
+        new Put(
+            security: "is_granted('EDIT', object)",
+            stateless: false
+        ),
+        new Delete(
+            security: "is_granted('DELETE', object)",
+            stateless: false
+        )
     ],
     paginationClientItemsPerPage: true,
     paginationItemsPerPage: 30,
@@ -38,7 +54,7 @@ use Symfony\Component\Validator\Constraints as Assert;
 )]
 #[ApiFilter(BooleanFilter::class, properties: ['isDebtor', 'isCreditor', 'isActive'])]
 #[ApiFilter(SearchFilter::class, properties: ['companyName' => 'partial', 'city' => 'partial', 'email' => 'partial'])]
-class Contact
+class Contact implements ModuleAwareInterface
 {
     #[ORM\Id]
     #[ORM\GeneratedValue]
@@ -394,4 +410,13 @@ class Contact
     {
         return $this->companyName ?? '';
     }
+
+    /**
+     * Returns the module code this entity belongs to.
+     * Required by ModuleVoter for permission checks.
+     */
+    public function getModuleName(): string
+    {
+        return 'contacts';
+    }
 }
diff --git a/src/Entity/Interface/ModuleAwareInterface.php b/src/Entity/Interface/ModuleAwareInterface.php
new file mode 100644
index 0000000..a0b59e0
--- /dev/null
+++ b/src/Entity/Interface/ModuleAwareInterface.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Entity\Interface;
+
+interface ModuleAwareInterface
+{
+    /**
+     * Returns the module code this entity belongs to.
+     * Must match the 'code' field in the modules table.
+     * 
+     * @return string Module code (e.g., 'contacts', 'deals', 'users')
+     */
+    public function getModuleName(): string;
+}
diff --git a/src/Security/LoginFormAuthenticator.php b/src/Security/LoginFormAuthenticator.php
index 738c46b..576f038 100644
--- a/src/Security/LoginFormAuthenticator.php
+++ b/src/Security/LoginFormAuthenticator.php
@@ -60,7 +60,7 @@ class LoginFormAuthenticator extends AbstractLoginFormAuthenticator
             return new RedirectResponse($targetPath);
         }
 
-        return new RedirectResponse($this->router->generate('app_dashboard'));
+        return new RedirectResponse($this->router->generate('app_home'));
     }
 
     protected function getLoginUrl(Request $request): string
diff --git a/src/Security/Voter/ModuleVoter.php b/src/Security/Voter/ModuleVoter.php
index 7acca59..0e5f8ce 100644
--- a/src/Security/Voter/ModuleVoter.php
+++ b/src/Security/Voter/ModuleVoter.php
@@ -2,31 +2,37 @@
 
 namespace App\Security\Voter;
 
+use App\Entity\Interface\ModuleAwareInterface;
 use App\Entity\User;
 use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
 use Symfony\Component\Security\Core\Authorization\Voter\Voter;
 
 class ModuleVoter extends Voter
 {
-    public const VIEW = 'MODULE_VIEW';
-    public const CREATE = 'MODULE_CREATE';
-    public const EDIT = 'MODULE_EDIT';
-    public const DELETE = 'MODULE_DELETE';
-    public const EXPORT = 'MODULE_EXPORT';
-    public const MANAGE = 'MODULE_MANAGE';
+    public const VIEW = 'VIEW';
+    public const CREATE = 'CREATE';
+    public const EDIT = 'EDIT';
+    public const DELETE = 'DELETE';
+    public const EXPORT = 'EXPORT';
+    public const MANAGE = 'MANAGE';
 
     protected function supports(string $attribute, mixed $subject): bool
     {
-        // Der Voter unterstützt MODULE_* Attribute
-        // Subject ist der Module-Code als String (z.B. 'contacts', 'deals')
-        return in_array($attribute, [
+        $supportedAttributes = [
             self::VIEW,
             self::CREATE,
             self::EDIT,
             self::DELETE,
             self::EXPORT,
             self::MANAGE,
-        ]) && is_string($subject);
+        ];
+        
+        if (!in_array($attribute, $supportedAttributes)) {
+            return false;
+        }
+        
+        // Subject can be a string (module name) or an object implementing ModuleAwareInterface
+        return is_string($subject) || $subject instanceof ModuleAwareInterface;
     }
 
     protected function voteOnAttribute(string $attribute, mixed $subject, TokenInterface $token): bool
@@ -48,8 +54,8 @@ class ModuleVoter extends Voter
             return true;
         }
 
-        // $subject ist der Module-Code (z.B. 'contacts')
-        $moduleCode = $subject;
+        // Extract module name from subject
+        $moduleCode = is_string($subject) ? $subject : $subject->getModuleName();
 
         // Map Voter-Attribute auf Permission-Actions
         $action = match($attribute) {