BACKEND: updated database

backend/.idea/dataSources.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="DataSourceManagerImpl" format="xml" multifile-model="true">
-    <data-source source="LOCAL" name="database" uuid="22fcd532-5c36-4245-b274-bba2692e10d6">
+    <data-source source="LOCAL" name="database" uuid="8d770d62-9fb6-4013-a5cd-9e7552c294c7">
       <driver-ref>sqlite.xerial</driver-ref>
       <synchronize>true</synchronize>
       <jdbc-driver>org.sqlite.JDBC</jdbc-driver>
-      <jdbc-url>jdbc:sqlite:D:\Nanduni.Bsc\research_code\2022-158\backend\backend\database.db</jdbc-url>
+      <jdbc-url>jdbc:sqlite:D:\Nanduni.Bsc\research_code\2022-158\backend\database.db</jdbc-url>
       <working-dir>$ProjectFileDir$</working-dir>
       <libraries>
         <library>

backend/outputs/generated_dot_files/use_cases_djduwrtaxa.dot

+digraph G {
+	rankdir=LR;
+	labelloc="b";
+	peripheries=0;
+
+	node [shape=plaintext]
+
+	subgraph Admin {label="Admin"; admin};
+	admin [image="D:\Nanduni.Bsc\research_code\2022-158\backend/stick.png";peripheries=0;];
+
+	node [shape=ellipse, style=solid];
+
+	login_to_the_system [label="Login To The System"];
+	check_the_home_page [label="Check The Home Page"];
+	play_the_site_demo_video [label="Play The Site Demo Video"];
+	add_items_to_the_cart [label="Add Items To The Cart"];
+	pay_the_items [label="Pay The Items"];
+	give_a_feedback_for_the_system [label="Give A Feedback For The System"];
+	view_the_seller_details [label="View The Seller Details"];
+	contact_the_seller_to_request_more_items [label="Contact The Seller To Request More Items"];
+	login_to_the_system [label="Login To The System"];
+	view_and_manage_cart_items [label="View And Manage Cart Items"];
+	check_the_payments_and_sold_items [label="Check The Payments And Sold Items"];
+	reply_to_customer_feedbacks [label="Reply To Customer Feedbacks"];
+
+	edge [arrowhead="none"];
+
+	customer->login_to_the_system;
+	customer->check_the_home_page;
+	customer->play_the_site_demo_video;
+	customer->add_items_to_the_cart;
+	customer->pay_the_items;
+	customer->give_a_feedback_for_the_system;
+	customer->view_the_seller_details;
+	customer->contact_the_seller_to_request_more_items;
+	admin->login_to_the_system;
+	admin->view_and_manage_cart_items;
+	admin->check_the_payments_and_sold_items;
+	admin->reply_to_customer_feedbacks;
+
+	edge [arrowtail="vee", label="<<extend>>", style=dashed];
+
+	give_a_feedback_for_the_system->rate_the_service;
+
+	edge [arrowtail="vee", label="<<include>>", style=dashed];
+
+	pay_the_items->recieve_the_confirmation_email;
+
+}
\ No newline at end of file