Table of Contents
1. Introduction
1.1 Purpose
1.2 Scope
1.3 Definitions, Acronyms, and Abbreviations
1.4 References
1.5 Overview
2. Overall Description
2.1 Product Perspective
2.2 Product Functions
2.3 User Classes and Characteristics
2.4 Operating Environment
2.5 Design and Implementation Constraints
2.6 User Documentation
2.7 Assumptions and Dependencies
3. Specific Requirements
3.1 Functional Requirements
3.1.1 User Authentication
3.1.2 Balance Inquiry
3.1.3 Cash Withdrawal
3.1.4 Deposit
3.1.5 Funds Transfer
3.1.6 Change PIN
3.1.7 Print Receipt
3.2 Non-Functional Requirements
3.2.1 Performance Requirements
3.2.2 Security Requirements
3.2.3 Availability and Reliability
3.2.4 Usability
3.2.5 Maintainability
3.3 External Interface Requirements
3.3.1 User Interfaces
3.3.2 Hardware Interface3.3.3 Software Interfaces
3.3.4 Communication Interfaces
