diff --git a/phpunit.xml b/phpunit.xml
index 93e8811..a49056b 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -26,7 +26,11 @@
             <file>tests/Architecture/ModuleProviderContractTest.php</file>
             <file>tests/Architecture/ModuleUiContractTest.php</file>
             <file>tests/Architecture/RepositoryInterfaceContractTest.php</file>
-            <file>tests/Architecture/StatusTaxonomyContractTest.php</file>
+            <file>tests/Architecture/StatusTaxonomyDataContractTest.php</file>
+            <file>tests/Architecture/StatusTaxonomyEnumContractTest.php</file>
+            <file>tests/Architecture/StatusTaxonomyFilterSchemaContractTest.php</file>
+            <file>tests/Architecture/StatusTaxonomyLiteralGuardContractTest.php</file>
+            <file>tests/Architecture/StatusTaxonomyUiContractTest.php</file>
         </testsuite>
         <testsuite name="ArchitectureSecurity">
             <file>tests/Architecture/AuthzAdminMasterDataContractTest.php</file>
diff --git a/tests/Architecture/StatusTaxonomyContractTest.php b/tests/Architecture/StatusTaxonomyContractFiles.php
similarity index 63%
rename from tests/Architecture/StatusTaxonomyContractTest.php
rename to tests/Architecture/StatusTaxonomyContractFiles.php
index a4bdb07..9889698 100644
--- a/tests/Architecture/StatusTaxonomyContractTest.php
+++ b/tests/Architecture/StatusTaxonomyContractFiles.php
@@ -2,16 +2,12 @@
 
 namespace MintyPHP\Tests\Architecture;
 
-use PHPUnit\Framework\TestCase;
-
-class StatusTaxonomyContractTest extends TestCase
+final class StatusTaxonomyContractFiles
 {
-    use ProjectFileAssertionSupport;
-
     /**
      * @return list<string>
      */
-    private function taxonomyEnumFiles(): array
+    public static function taxonomyEnumFiles(): array
     {
         return [
             'lib/Domain/Taxonomy/SystemAuditOutcome.php',
@@ -32,7 +28,7 @@ class StatusTaxonomyContractTest extends TestCase
     /**
      * @return array<string,list<string>>
      */
-    private function taxonomySchemaExpectations(): array
+    public static function taxonomySchemaExpectations(): array
     {
         return [
             'pages/admin/system-audit/filter-schema.php' => [
@@ -63,7 +59,7 @@ class StatusTaxonomyContractTest extends TestCase
     /**
      * @return list<string>
      */
-    private function taxonomyDataEndpointFiles(): array
+    public static function taxonomyDataEndpointFiles(): array
     {
         return [
             'pages/admin/system-audit/data().php',
@@ -79,7 +75,7 @@ class StatusTaxonomyContractTest extends TestCase
     /**
      * @return list<string>
      */
-    private function taxonomyLiteralGuardFiles(): array
+    public static function taxonomyLiteralGuardFiles(): array
     {
         return [
             'lib/Service/Audit/SystemAuditService.php',
@@ -113,39 +109,12 @@ class StatusTaxonomyContractTest extends TestCase
         ];
     }
 
-    public function testTaxonomyEnumFilesUseSharedTraitAndRequiredMethods(): void
+    /**
+     * @return list<string>
+     */
+    public static function forbiddenLiteralPatterns(): array
     {
-        foreach ($this->taxonomyEnumFiles() as $file) {
-            $content = $this->readProjectFile($file);
-            $this->assertStringContainsString('enum ', $content, $file);
-            $this->assertStringContainsString('use SupportsStringTaxonomy;', $content, $file);
-            $this->assertStringContainsString('function labelToken()', $content, $file);
-            $this->assertStringContainsString('function badgeVariant()', $content, $file);
-        }
-    }
-
-    public function testFilterSchemasReadTaxonomyValuesFromEnums(): void
-    {
-        foreach ($this->taxonomySchemaExpectations() as $file => $snippets) {
-            $content = $this->readProjectFile($file);
-            foreach ($snippets as $snippet) {
-                $this->assertStringContainsString($snippet, $content, $file);
-            }
-        }
-    }
-
-    public function testDataEndpointsUseEnumBasedBadgeAndLabelResolution(): void
-    {
-        foreach ($this->taxonomyDataEndpointFiles() as $file) {
-            $content = $this->readProjectFile($file);
-            $this->assertStringContainsString('->badgeVariant()', $content, $file);
-            $this->assertStringContainsString('->labelToken()', $content, $file);
-        }
-    }
-
-    public function testNoLegacyLiteralTaxonomyChecksRemainInMigratedFiles(): void
-    {
-        $forbiddenPatterns = [
+        return [
             "/\\bstatus\\s*=\\s*'(running|success|partial|failed|skipped|queued|sent|active|inactive)'/",
             "/\\boutcome\\s*=\\s*'(success|failed|denied)'/",
             "/\\bchannel\\s*=\\s*'(web|api|scheduler|cli)'/",
@@ -155,22 +124,5 @@ class StatusTaxonomyContractTest extends TestCase
             "/['\\\"]actions['\\\"]\\s*=>\\s*'restore'/",
             "/in_array\\([^\\n]*\\[(?:[^\\]]*'(?:success|failed|denied|running|partial|skipped|queued|sent|active|inactive|scheduler|manual|web|api|cli|deactivate|delete|restore|ok|lock_not_acquired|unexpected_error)')/",
         ];
-
-        foreach ($this->taxonomyLiteralGuardFiles() as $file) {
-            $content = $this->readProjectFile($file);
-            foreach ($forbiddenPatterns as $pattern) {
-                $this->assertSame(0, preg_match($pattern, $content), $file . ' pattern=' . $pattern);
-            }
-        }
-    }
-
-    public function testImportAuditIndexTemplateDoesNotUseLegacyStatusMapper(): void
-    {
-        $content = $this->readProjectFile('pages/admin/import-audit/index(default).phtml');
-        $moduleContent = $this->readProjectFile('web/js/pages/admin-import-audit-index.js');
-        $this->assertStringNotContainsString('const statusLabel = (value) =>', $moduleContent);
-        $this->assertStringNotContainsString("if (key === 'running')", $moduleContent);
-        $this->assertStringContainsString('cell.label || \'-\'', $moduleContent);
-        $this->assertStringContainsString("assetVersion('js/pages/admin-import-audit-index.js')", $content);
     }
 }
diff --git a/tests/Architecture/StatusTaxonomyDataContractTest.php b/tests/Architecture/StatusTaxonomyDataContractTest.php
new file mode 100644
index 0000000..b884c4d
--- /dev/null
+++ b/tests/Architecture/StatusTaxonomyDataContractTest.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace MintyPHP\Tests\Architecture;
+
+use PHPUnit\Framework\TestCase;
+
+final class StatusTaxonomyDataContractTest extends TestCase
+{
+    use ProjectFileAssertionSupport;
+
+    public function testDataEndpointsUseEnumBasedBadgeAndLabelResolution(): void
+    {
+        foreach (StatusTaxonomyContractFiles::taxonomyDataEndpointFiles() as $file) {
+            $content = $this->readProjectFile($file);
+            $this->assertStringContainsString('->badgeVariant()', $content, $file);
+            $this->assertStringContainsString('->labelToken()', $content, $file);
+        }
+    }
+}
diff --git a/tests/Architecture/StatusTaxonomyEnumContractTest.php b/tests/Architecture/StatusTaxonomyEnumContractTest.php
new file mode 100644
index 0000000..02889de
--- /dev/null
+++ b/tests/Architecture/StatusTaxonomyEnumContractTest.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace MintyPHP\Tests\Architecture;
+
+use PHPUnit\Framework\TestCase;
+
+final class StatusTaxonomyEnumContractTest extends TestCase
+{
+    use ProjectFileAssertionSupport;
+
+    public function testTaxonomyEnumFilesUseSharedTraitAndRequiredMethods(): void
+    {
+        foreach (StatusTaxonomyContractFiles::taxonomyEnumFiles() as $file) {
+            $content = $this->readProjectFile($file);
+            $this->assertStringContainsString('enum ', $content, $file);
+            $this->assertStringContainsString('use SupportsStringTaxonomy;', $content, $file);
+            $this->assertStringContainsString('function labelToken()', $content, $file);
+            $this->assertStringContainsString('function badgeVariant()', $content, $file);
+        }
+    }
+}
diff --git a/tests/Architecture/StatusTaxonomyFilterSchemaContractTest.php b/tests/Architecture/StatusTaxonomyFilterSchemaContractTest.php
new file mode 100644
index 0000000..856657e
--- /dev/null
+++ b/tests/Architecture/StatusTaxonomyFilterSchemaContractTest.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace MintyPHP\Tests\Architecture;
+
+use PHPUnit\Framework\TestCase;
+
+final class StatusTaxonomyFilterSchemaContractTest extends TestCase
+{
+    use ProjectFileAssertionSupport;
+
+    public function testFilterSchemasReadTaxonomyValuesFromEnums(): void
+    {
+        foreach (StatusTaxonomyContractFiles::taxonomySchemaExpectations() as $file => $snippets) {
+            $content = $this->readProjectFile($file);
+            foreach ($snippets as $snippet) {
+                $this->assertStringContainsString($snippet, $content, $file);
+            }
+        }
+    }
+}
diff --git a/tests/Architecture/StatusTaxonomyLiteralGuardContractTest.php b/tests/Architecture/StatusTaxonomyLiteralGuardContractTest.php
new file mode 100644
index 0000000..e248c5a
--- /dev/null
+++ b/tests/Architecture/StatusTaxonomyLiteralGuardContractTest.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace MintyPHP\Tests\Architecture;
+
+use PHPUnit\Framework\TestCase;
+
+final class StatusTaxonomyLiteralGuardContractTest extends TestCase
+{
+    use ProjectFileAssertionSupport;
+
+    public function testNoLegacyLiteralTaxonomyChecksRemainInMigratedFiles(): void
+    {
+        foreach (StatusTaxonomyContractFiles::taxonomyLiteralGuardFiles() as $file) {
+            $content = $this->readProjectFile($file);
+            foreach (StatusTaxonomyContractFiles::forbiddenLiteralPatterns() as $pattern) {
+                $this->assertSame(0, preg_match($pattern, $content), $file . ' pattern=' . $pattern);
+            }
+        }
+    }
+}
diff --git a/tests/Architecture/StatusTaxonomyUiContractTest.php b/tests/Architecture/StatusTaxonomyUiContractTest.php
new file mode 100644
index 0000000..ba86382
--- /dev/null
+++ b/tests/Architecture/StatusTaxonomyUiContractTest.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace MintyPHP\Tests\Architecture;
+
+use PHPUnit\Framework\TestCase;
+
+final class StatusTaxonomyUiContractTest extends TestCase
+{
+    use ProjectFileAssertionSupport;
+
+    public function testImportAuditIndexTemplateDoesNotUseLegacyStatusMapper(): void
+    {
+        $content = $this->readProjectFile('pages/admin/import-audit/index(default).phtml');
+        $moduleContent = $this->readProjectFile('web/js/pages/admin-import-audit-index.js');
+        $this->assertStringNotContainsString('const statusLabel = (value) =>', $moduleContent);
+        $this->assertStringNotContainsString("if (key === 'running')", $moduleContent);
+        $this->assertStringContainsString('cell.label || \'-\'', $moduleContent);
+        $this->assertStringContainsString("assetVersion('js/pages/admin-import-audit-index.js')", $content);
+    }
+}
diff --git a/tests/README.md b/tests/README.md
index d0eaf1b..a3b3105 100644
--- a/tests/README.md
+++ b/tests/README.md
@@ -33,6 +33,6 @@ ohne dass jede Aenderung immer die komplette Suite im Kopf behalten muss.
 ## Naechste Refactor-Kandidaten
 
 - `tests/Architecture/ContainerFactoryContractTest.php`
-- `tests/Architecture/StatusTaxonomyContractTest.php`
 - `tests/Architecture/AuthLoginAccessibilityContractTest.php`
 - `tests/Architecture/SecurityCryptoContractTest.php`
+- `tests/Architecture/AsideNavigationContractTest.php`