subsystem - accounting management subsystem ( should specify the external factors, data flow, data store, and process ) Context Diagram for your subsystem Diagram 0 for your subsystem One Level 1 Diagram Solution Overview We will develop a comprehensive IT solution to address the following key areas: Online Booking and Appointment Management Integrated POS and Inventory Management System Accounting Management Subsystem We will use web-based technologies to provide a seamless experience for customers and staff. The system will be accessible through a web browser, reducing the need for specialized software installation and maintenance. Online Booking and Appointment Management We will create a user-friendly website for RAS, where customers can: View available services and pricing Book and cancel appointments View their appointment history and invoices For the staff, the website will also provide: A centralized appointment calendar The ability to manage appointments and customer information Access to customer service history and preferences Integrated POS and Inventory Management System We will develop an integrated POS system that: Tracks customer accounts, car details, and service jobs Generates invoices and receipts Updates the inventory database when parts are used Automatically triggers EFTPOS receipts The system will also provide analytical reports to help management evaluate business performance and make informed decisions. Accounting Management Subsystem We will integrate an accounting management subsystem into the POS system, which will: Record all expenses, payments, and stock movements Generate Profit and Loss Statements and Balance Sheets Eliminate the need for freelance bookkeepers Explanation: 1. POS system: A Point of Sale system is a software and hardware combination used for managing sales transactions, inventory, and customer data. 2. Inventory management: The process of tracking and managing the flow of goods from suppliers to customers, including order fulfillment, stock control, and warehousing. 3. Accounting management: The process of recording, classifying, and summarizing financial transactions to produce financial reports such as balance sheets, income statements, and cash flow statements. 4. EFTPOS: Electronic Funds Transfer at Point of Sale is an electronic payment system that allows customers to pay for goods and services using their debit or credit card. 5. Financial reports: Documents that summarize and present financial data, including income statements, balance sheets, cash flow statements, and other financial performance metrics. This subsystem will interact with the following external factors: Suppliers: For purchasing inventory and receiving invoices Banks: For transactions and reconciling accounts Tax authorities: For filing taxes and regulatory compliance The subsystem will include the following data flows: Incoming Invoices: From suppliers to the system Payments: From the system to suppliers, banks, and tax authorities Financial Reports: Generated by the system for management The subsystem will have the following data stores: Accounts Payable: To record outstanding supplier invoices Accounts Receivable: To record outstanding customer invoices General Ledger: For recording all financial transactions The subsystem will include the following processes: Record incoming invoices Process and record payments Generate financial reports Implementation Plan Given the budget of and the requirement to launch the system by July 1, 2024, we propose the following implementation timeline: Requirements gathering and analysis (2 months) System design and development (6 months) Testing and user training (3 months) System deployment and support (1 month) develop a context diagram, level 0 diagram and level 1 diagram