Question: Software Requirements Specification Document (please include subheadings where requires).

Topic: ATM

1. Introduction

   1. Purpose

2. Document Conventions

3. Intended Audience and Reading Suggestions

4. Product Scope

5. References

2. Overall Description

   1. Product Perspective

2. Product Functions

3. User Classes and Characteristics

4. Operating Environment

5. Design and Implementation Constraints

6. User Documentation

7. Assumptions and Dependencies

3. External Interface Requirements

   1. User Interfaces

2. Hardware Interfaces

3. Software Interfaces

4. Communications Interfaces