Functional Requirements Document (FRD) - Real-
Time Chat Application
Introduction:
The Functional Requirements Document (FRD) outlines the specific functional requirements that
the real-time chat application with voice and video call features must fulfill. It provides a
detailed description of the application's functionalities to guide the development team during the
implementation phase.
User Registration and Authentication:
Users should be able to register new accounts by providing their email, username, and
password.
The application shall support third-party social media authentication, such as Google and
Facebook login, for user convenience and faster registration.
Users must log in securely using their registered credentials.
Real-Time Messaging (Text Chat):
The application shall enable users to send and receive text messages in real time.
Typing indicators should be displayed to indicate when a contact is typing a message.
The application shall provide read receipts to show when a message has been viewed by
the recipient.
Voice and Video Calling:
The application must allow users to initiate voice calls with their contacts.
Users should be able to switch between speaker and earpiece during voice calls.
The application shall support voice call mute and unmute functionality.
Contact Management and Invitation:
Users must have a contact list that displays their existing contacts.
The application shall include a search functionality to find and add new contacts.
Invitations to join the application shall be sent to new contacts via email or SMS.
Chat History and Notifications:
The application should store chat history for users to access previous conversations.
Users shall receive real-time notifications for incoming text messages and voice/video
calls, even when the application is in the background.
User Profile and Settings:
Users should be able to edit their profiles and update personal information.
The application shall provide settings for notification preferences, such as
enabling/disabling message notifications or call ringtones.
Users must have the option to configure app preferences, such as the choice of theme or
font size.
Security:
The application shall implement end-to-end encryption for text messages, voice calls, and
video calls to ensure data privacy and security.
User passwords must be securely hashed and stored to prevent unauthorized access.
Performance:
The application should perform efficiently and respond promptly to user interactions,
even under heavy user load.
Compatibility:
The application shall be compatible with major web browsers (e.g., Chrome, Firefox,
Safari) and mobile platforms (iOS and Android).
Localization:
The application shall support multiple languages and provide localization for a global
user base.
Error Handling:
The application must include robust error-handling mechanisms to handle exceptions
gracefully and provide informative error messages to users when necessary.
Testing and Quality Assurance:
The development team shall conduct thorough testing, including unit tests, integration
tests, and user acceptance tests, to ensure the application's functionality and usability.
Documentation:
The development team must provide comprehensive documentation, including
installation guides, user manuals, and technical specifications.
Deployment:
The application shall be deployed on reliable servers or cloud platforms with provisions
for backup and disaster recovery.
Maintenance and Support:
The development team shall provide ongoing maintenance and support for the
application, addressing bug fixes and potential future updates.
By adhering to these functional requirements, we aim to deliver a high-quality real-time
chat application that meets the needs of our target users and provides a seamless
communication experience.
Aditya Agarwal
27 August 2023
Aditya Agarwal And Business Analyst
Define Labs
