Software Requirements Specification (SRS)

Project Title: Online Shopping System
Version: 1.0
Date: [10/10/2021]
Prepared by: [mpsc info]

1. Introduction

1.1 Purpose

The purpose of this SRS is to define the requirements for the Online Shopping System. The system will allow customers to browse, search, and purchase products online, while administrators manage product listings, orders, and deliveries.

1.2 Scope

The Online Shopping System will:

• Provide a product catalog with search and filtering.
• Support a shopping cart and secure checkout.
• Integrate with payment gateways for transactions.
• Allow order tracking and delivery updates.
• Support customer account management and service requests.

Actors: Customers, Admins, Payment Gateway, Delivery Partners.

1.3 Definitions, Acronyms, Abbreviations

• SRS: Software Requirements Specification
• FR: Functional Requirement
• NFR: Non-Functional Requirement
• UI: User Interface
• OTP: One-Time Password

1.4 References

• IEEE 830/29148 SRS Standards
• GDPR Guidelines for data privacy
• Local e-commerce regulations

2. Overall Description

2.1 Product Perspective

The system will be a web and mobile-based e-commerce platform. It will interact with:

• Databases (for user, product, and order storage).
• Payment Gateways (for transactions).
• Courier APIs (for delivery tracking).

2.2 Product Functions

• User Registration & Login
• Product Search & Filtering
• Shopping Cart & Checkout
• Secure Payments
• Order Management & Tracking
• Admin Management (Products, Users, Orders)
• Customer Support

2.3 User Characteristics

• End Users: General customers (basic computer/mobile literacy).
• Admins: Staff with e-commerce management knowledge.
• Third Parties: Payment and delivery partners.

2.4 Constraints

• Must comply with data privacy laws (GDPR).
• 24/7 availability required.
• Secure transactions (SSL/TLS, encryption).

2.5 Assumptions & Dependencies

• Stable internet connection required.
• Payment gateway availability.
• Delivery services operational.

3. Functional Requirements (FR)

3.1 User Account Management

• FR1: System shall allow users to register, log in, and log out.
• FR2: Users shall be able to update profiles and reset passwords.

3.2 Product Management

• FR3: Users shall be able to search, filter, and browse products.
• FR4: Admin shall be able to add, update, or remove products.

3.3 Shopping Cart & Checkout

• FR5: Users shall be able to add/remove products from the cart.
• FR6: System shall update the cart total dynamically.
• FR7: System shall allow checkout with multiple payment options (Card, UPI, Wallet, COD).

3.4 Order Management

• FR8: System shall generate order confirmation with unique ID.
• FR9: Users shall be able to track order status.
• FR10: Admin shall be able to update order and delivery details.

3.5 Payment & Security

• FR11: System shall encrypt all transactions.
• FR12: Users shall receive a digital invoice for each order.

3.6 Customer Support

• FR13: Users shall be able to contact support via chat or email.
• FR14: Users shall be able to request returns/refunds.

4. Non-Functional Requirements (NFR)

4.1 Performance

• NFR1: System shall support at least 1000 concurrent users.
• NFR2: Page response time shall be < 3 seconds.

4.2 Security

• NFR3: Passwords shall be stored using encryption (SHA-256 or better).
• NFR4: Two-factor authentication shall be available for login.

4.3 Usability

• NFR5: UI shall be responsive for mobile, tablet, and desktop.
• NFR6: Checkout process shall not exceed 4 steps.

4.4 Availability & Reliability

• NFR7: System uptime shall be at least 99.9%.
• NFR8: Daily backups shall be taken automatically.

4.5 Scalability

• NFR9: System shall scale to support up to 100,000 products.
• NFR10: Architecture shall allow integration with additional payment gateways.

5. External Interface Requirements

5.1 User Interfaces

• Modern, responsive UI.
• Clear navigation bar with categories.
• Shopping cart icon visible across pages.

5.2 Hardware Interfaces

• Compatible with desktop, mobile, and tablet devices.

5.3 Software Interfaces

• Payment Gateway APIs.
• Courier/Logistics APIs.
• Database: MySQL/PostgreSQL.

5.4 Communication Interfaces

• HTTPS protocol with SSL certificates.
• REST APIs for third-party integration.

6. System Models

• Use Case Diagram: Illustrates interaction between users, admins, and system.
• Data Flow Diagram (DFD): Shows flow of data (User → Cart → Checkout → Payment → Delivery).
• ER Diagram: Defines entities (User, Product, Order, Payment, Delivery).

7. Validation & Acceptance Criteria

• All functional requirements must be tested via unit and integration testing.
• All non-functional requirements must be validated via performance, usability, and security testing.
• System must pass acceptance testing by stakeholders before deployment.