Use-Case-Diagram-with-Examples-Bank-App.pptx

Use Case Diagram with Examples-Bank

1. Use Case Diagram with Examples: Bank App

2. What is a Use Case Diagram? Visual System Representation A UML diagram that visually represents system functionalities from the user's perspective, simplifying complex interactions. Actor-Centric Design Clearly shows actors (users or external systems) and their specific interactions with the system's various use cases . Clarifies Requirements & Scope Crucial for clarifying project requirements and defining the system's scope before significant development efforts begin.

3. Why Use Case Diagrams Matter in Banking Apps Banking applications involve incredibly complex user interactions, spanning various roles from individual customers to bank employees and high-level managers. Use case diagrams are indispensable for: Organizing Interactions: They bring order to the multitude of ways different users engage with the app. Improving Communication: Bridging the gap between technical and non-technical stakeholders. Reducing Development Risks: By front-loading clarity, potential misinterpretations and costly reworks are minimized.

4. Key Components of a Use Case Diagram Actors Entities interacting with the system. This includes human users like a Customer or Bank Manager, or even other systems. Use Cases Specific functions or services that the system provides, such as "Withdraw Cash" or "Request Loan." Relationships Show how actors interact with use cases, and how use cases relate to each other (e.g., associations, includes, extends).

5. Bank App Actors Overview Different users bring distinct needs and interaction patterns to a banking application. Identifying these actors is the first step in defining system functionalities. Customer Manages accounts, transfers money, pays bills, and applies for new services through the app. Bank Manager Oversees operations, approves high-value transactions or loans, and manages employee access. Cashier Facilitates cash deposits/withdrawals, assists customers with inquiries, and processes specific transactions. System Handles automated processes such as user authentication, sending notifications, and batch processing.

6. Core Use Cases in a Bank App The functionalities of a banking app cover a broad spectrum, from daily transactions to critical security measures. Each use case defines a specific, measurable interaction. 1 Account Management Includes creating new accounts, viewing balances, checking transaction history, and updating personal information. 2 Transactions Covers core financial operations such as withdrawing cash, depositing checks, transferring funds between accounts, and paying bills. 3 Loan Requests & Approvals Allows customers to apply for loans and managers to review and approve/reject applications. 4 Security Protocols Ensures secure access with login and authentication, and provides features like reporting lost or stolen cards. 5 Notifications & Statements Manages alerts for transactions, overdue payments, and provides access to monthly or annual statements.

7. Example: Customer Use Case Flow Understanding the typical journey of a customer interacting with the banking app highlights critical paths and user expectations. 01 Secure Login Customer logs in using credentials, often reinforced with two-factor authentication for enhanced security. 02 View Account Information Accesses current account balance, detailed transaction history, and other relevant account details. 03 Initiate Transaction Performs actions such as transferring money to another account or securely paying a bill. 04 Optional Loan Request If needed, initiates the process to request a loan directly through the application interface. 05 Secure Logout Safely exits the application, protecting personal and financial data.

8. Visual: Simplified Bank App Use Case Diagram Bank App Use Cases Actors and interactions for core functions View Account Check balances and transactions Transfer Money Send funds between accounts Login Access the bank app securely Request Loan Apply for personal or business loan This diagram illustrates how different actors interact with key functionalities, including common relationships like 'include' for mandatory steps and 'extend' for optional scenarios.

9. Real-World Scenario: Loan Request Process A detailed look at the loan request process showcases how multiple use cases and actors interact within the system. Customer Submits Request Customer provides necessary details and documentation for a loan application via the app. Manager Review & Decision Bank Manager assesses the application, approving or rejecting based on policy and customer profile. System Notification Automated system sends a notification to the customer regarding the loan decision. Account Update For approved loans, the system updates the customer's account and sets up repayment schedules.

10. Summary & Takeaway Use case diagrams serve as a clear, user-focused blueprint, essential for designing robust and intuitive banking applications. By thoroughly mapping out functionalities and interactions at the outset, these diagrams improve understanding, significantly reduce potential errors, and ensure all development teams are aligned. Embrace use case diagrams from the start to build secure, user-friendly, and highly effective banking apps that meet real-world needs.