diff --git a/src/main/java/org/ntlab/tampoposerver/models/Notification.java b/src/main/java/org/ntlab/tampoposerver/models/Notification.java
index 101b9c9..12994c4 100644
--- a/src/main/java/org/ntlab/tampoposerver/models/Notification.java
+++ b/src/main/java/org/ntlab/tampoposerver/models/Notification.java
@@ -1,4 +1,49 @@
 package org.ntlab.tampoposerver.models;
 
 public class Notification {
+    private String userId;
+    private String notificationId;
+    private String from;
+    private String text;
+    private String time;
+
+    public String getUserId() {
+        return userId;
+    }
+
+    public void setUserId(String userId) {
+        this.userId = userId;
+    }
+
+    public String getNotificationId() {
+        return notificationId;
+    }
+
+    public void setNotificationId(String notificationId) {
+        this.notificationId = notificationId;
+    }
+
+    public String getFrom() {
+        return from;
+    }
+
+    public void setFrom(String from) {
+        this.from = from;
+    }
+
+    public String getText() {
+        return text;
+    }
+
+    public void setText(String text) {
+        this.text = text;
+    }
+
+    public String getTime() {
+        return time;
+    }
+
+    public void setTime(String time) {
+        this.time = time;
+    }
 }
diff --git a/src/main/java/org/ntlab/tampoposerver/repositories/NotificationRepository.java b/src/main/java/org/ntlab/tampoposerver/repositories/NotificationRepository.java
index 7509ae4..bbaadfd 100644
--- a/src/main/java/org/ntlab/tampoposerver/repositories/NotificationRepository.java
+++ b/src/main/java/org/ntlab/tampoposerver/repositories/NotificationRepository.java
@@ -1,7 +1,19 @@
 package org.ntlab.tampoposerver.repositories;
 
+import org.ntlab.tampoposerver.models.Notification;
 import org.springframework.stereotype.Repository;
 
+import java.util.HashMap;
+
 @Repository
 public class NotificationRepository {
+    private HashMap<String, HashMap<String, Notification>> notificationMap = new HashMap<>();
+
+    public NotificationRepository() {
+        Notification n1 = new Notification();
+        notificationMap.put("uid01", new HashMap<>());
+        notificationMap.get("uid01").put("nid01", n1);
+
+        Notification result = notificationMap.get("uid01").get("nid01");
+    }
 }