diff --git a/.github/workflows/github-actions-demo.yml b/.github/workflows/github-actions-demo.yml
index 15a61d6..c776e8e 100644
--- a/.github/workflows/github-actions-demo.yml
+++ b/.github/workflows/github-actions-demo.yml
@@ -8,11 +8,27 @@ jobs:
       - run: echo "🎉 The job was automatically triggered by a ${{ github.event_name }} event."
       - run: echo "🐧 This job is now running on a ${{ runner.os }} server hosted by GitHub!"
       - run: echo "🔎 The name of your branch is ${{ github.ref }} and your repository is ${{ github.repository }}."
-      - name: Check out repository code
-        uses: actions/checkout@v4
-      - run: echo "💡 The ${{ github.repository }} repository has been cloned to the runner."
-      - run: echo "🖥️ The workflow is now ready to test your code on the runner."
-      - name: List files in the repository
-        run: |
-          ls ${{ github.workspace }}
-      - run: echo "🍏 This job's status is ${{ job.status }}."
+    
+  Depends-on-Job:
+    needs: Explore-GitHub-Actions
+    runs-on: ubuntu-latest
+    steps:
+      - run: sleep 5
+
+  Depends-on-Job-Matrix:
+    needs: Explore-GitHub-Actions
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        sleep_time: ["10", "15"]
+    steps:
+      - run: sleep ${{ matrix.sleep_time }}
+
+  After-All:
+    needs: [ Depends-on-Job-Matrix, Depends-on-Job ]
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        sleep_time: ["10", "15"]
+    steps:
+      - run: sleep ${{ matrix.sleep_time }}