diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 7f7c843..9ccb587 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -14,24 +14,24 @@ stages:
   - search
 
 build:
-  stage: build
-  image: registry.jetbrains.team/p/writerside/builder/writerside-builder:$DOCKER_VERSION
-  script:
-    - set -e
-    - export DISPLAY=:99
-    - Xvfb :99 &
-    - PROJECT_ID=$(echo $INSTANCE | cut -d'/' -f2 | tr '[:lower:]' '[:upper:]')
-    - ARTIFACT="webHelp${PROJECT_ID}2-all.zip"
-    - /opt/builder/bin/idea.sh helpbuilderinspect -source-dir . -product $INSTANCE --runner gitlab -output-dir public
-    - echo "Testing existence of $ARTIFACT..."
-    - ls -la public
-    - test -e public/$ARTIFACT
-  artifacts:
-    paths:
-      - public/$ARTIFACT
-      - public/report.json
-      - public/$ALGOLIA_ARTIFACT
-    expire_in: 1 week
+    stage: build
+    image: registry.jetbrains.team/p/writerside/builder/writerside-builder:$DOCKER_VERSION
+    script:
+      - set -e
+      - export DISPLAY=:99
+      - Xvfb :99 &
+      - PROJECT_ID=$(echo $INSTANCE | cut -d'/' -f2 | tr '[:lower:]' '[:upper:]')
+      - ARTIFACT="webHelp${PROJECT_ID}2-all.zip"
+      - /opt/builder/bin/idea.sh helpbuilderinspect -source-dir . -product $INSTANCE --runner gitlab -output-dir public
+      - echo "Testing existence of $ARTIFACT..."
+      - ls -la public
+      - test -e public/$ARTIFACT
+    artifacts:
+      paths:
+        - public/$ARTIFACT
+        - public/report.json
+        - public/$ALGOLIA_ARTIFACT
+      expire_in: 1 week
 
 test:
   stage: test
@@ -64,31 +64,31 @@ pages:
       - public
     expire_in: 1 week
 
-search:
-  stage: search
-  image: registry.jetbrains.team/p/writerside/builder/algolia-publisher:2.0.32-3
-  dependencies:
-    - build
-    - test
-    - pages
-  script:
-    - echo "Checking contents of the public directory..."
-    - ls -la public
-    - if [ -z "$ALGOLIA_KEY" ]; then
-      echo "ALGOLIA_KEY is not set in Gitlab secrets";
-      exit 1;
-      fi
-    - echo "ALGOLIA_KEY is set"
-    - PROJECT_ID=$(echo $INSTANCE | cut -d'/' -f2 | tr '[:lower:]' '[:upper:]')
-    - ALGOLIA_ARTIFACT="algolia-indexes-${PROJECT_ID}.zip"
-    - echo "ALGOLIA_ARTIFACT is $ALGOLIA_ARTIFACT"
-    - if [ ! -f "public/$ALGOLIA_ARTIFACT" ]; then
-      echo "Artifacts file public/$ALGOLIA_ARTIFACT not found!";
-      exit 1;
-      fi
-    - unzip -O UTF-8 public/$ALGOLIA_ARTIFACT -d algolia-indexes
-    - env "algolia-key=$ALGOLIA_KEY" java -jar /opt/builder/help-publication-agent.jar update-index --application-name $ALGOLIA_APP_NAME --index-name $ALGOLIA_INDEX_NAME --product $CONFIG_JSON_PRODUCT --version $CONFIG_JSON_VERSION --index-directory algolia-indexes/ 2>&1 | tee algolia-update-index-log.txt
-  artifacts:
-    paths:
-      - algolia-update-index-log.txt
-    expire_in: 1 week
\ No newline at end of file
+#search:
+#  stage: search
+#  image: registry.jetbrains.team/p/writerside/builder/algolia-publisher:2.0.32-3
+#  dependencies:
+#    - build
+#    - test
+#    - pages
+#  script:
+#    - echo "Checking contents of the public directory..."
+#    - ls -la public
+#    - if [ -z "$ALGOLIA_KEY" ]; then
+#      echo "ALGOLIA_KEY is not set in Gitlab secrets";
+#      exit 1;
+#      fi
+#    - echo "ALGOLIA_KEY is set"
+#    - PROJECT_ID=$(echo $INSTANCE | cut -d'/' -f2 | tr '[:lower:]' '[:upper:]')
+#    - ALGOLIA_ARTIFACT="algolia-indexes-${PROJECT_ID}.zip"
+#    - echo "ALGOLIA_ARTIFACT is $ALGOLIA_ARTIFACT"
+#    - if [ ! -f "public/$ALGOLIA_ARTIFACT" ]; then
+#      echo "Artifacts file public/$ALGOLIA_ARTIFACT not found!";
+#      exit 1;
+#      fi
+#    - unzip -O UTF-8 public/$ALGOLIA_ARTIFACT -d algolia-indexes
+#    - env "algolia-key=$ALGOLIA_KEY" java -jar /opt/builder/help-publication-agent.jar update-index --application-name $ALGOLIA_APP_NAME --index-name $ALGOLIA_INDEX_NAME --product $CONFIG_JSON_PRODUCT --version $CONFIG_JSON_VERSION --index-directory algolia-indexes/ 2>&1 | tee algolia-update-index-log.txt
+#  artifacts:
+#    paths:
+#      - algolia-update-index-log.txt
+#    expire_in: 1 week
\ No newline at end of file
diff --git a/Writerside/images/image_556.png b/Writerside/images/image_556.png
new file mode 100644
index 0000000..65396a1
Binary files /dev/null and b/Writerside/images/image_556.png differ
diff --git a/Writerside/topics/04/Software Engineering/01_ImplementingForMaintainability.md b/Writerside/topics/04/Software Engineering/01_ImplementingForMaintainability.md
index 81cf52d..3319604 100644
--- a/Writerside/topics/04/Software Engineering/01_ImplementingForMaintainability.md	
+++ b/Writerside/topics/04/Software Engineering/01_ImplementingForMaintainability.md	
@@ -35,4 +35,27 @@
 > Black-/White-Box-Testing sind Konzepte, die auf verschiedene Test-Typen angewendet werden können
 
 
-## 
\ No newline at end of file
+## Testing Quadrants Matrix
+![image_556.png](image_556.png)
+
+### Quadrant 1: Technologie-fokussierte Tests, die das Development leiten
+- Developer Tests:
+  - Unit tests
+    - Verifizieren Funktionalität eines kleinen Subsets des Systems
+  - Component-/Integration Tests:
+    - Verifizieren Verhalten eines größeren Teils
+
+- Tests sind nicht für den Kunden
+
+## Unit Testing
+- Unit Tests sind die essenzielle Basis einer guten Test-Suite
+  - Verglichen mit anderen, sind sie einfach zu erstellen und warten
+  - Viele Unit-Tests :)
+
+
+## Goals of Testing during Implementation
+### Aktiviere nachhaltiges Wachstum des Software-Projekts
+- Nachhaltigkeit ist wichtig
+  - Projektwachstum ist am Anfang einfach
+  - Das Wachstum zu halten ist schwer
+- 
\ No newline at end of file