diff --git a/src/com/platform/service/CheckoutService.java b/src/com/platform/service/CheckoutService.java
new file mode 100644
index 00000000..9bc1fdc7
--- /dev/null
+++ b/src/com/platform/service/CheckoutService.java
@@ -0,0 +1,13 @@
+package com.platform.service;
+
+import java.util.List;
+
+import com.platform.entities.PreDataInfo;
+
+public interface CheckoutService {
+	
+	public List<PreDataInfo> findAll() throws Exception;
+	
+	public void checkAll()  throws Exception;
+
+}