System Requirements Document (SRD)

Project Name: Future Fit

1. Introduction

The Future Fit project is a visionary initiative spearheaded by Raj kumar Dhiman in India. This document outlines the system requirements for the development of a cutting-edge anime-style gym assistant app called Future Fit. The app combines fitness gamification with anime fandom, offering users a unique and engaging way to train without a real trainer. By leveraging customizable anime avatars, interactive voice and text features, gamified fitness missions, and advanced health tracking capabilities, Future Fit aims to revolutionize personal fitness experiences.

This SRD serves as the foundation for the development process, ensuring alignment with the project's goals and user expectations.

2. System Overview

Future Fit is a mobile application designed to assist users in achieving their fitness goals through anime-inspired avatars, gamified interactions, and integrated health tracking. The app will feature customizable avatars (e.g., Goku, Gojo), interactive voice and text communication, workout plans tailored to user goals, gamified XP and level systems, and advanced health metrics like heart rate and blood pressure monitoring.

The app will also include a curated song library to energize workouts and enhance user engagement.

Key features include:

• Anime avatar assistant with customizable characters
• Voice and text interaction with motivational feedback
• Avatar voice changes based on selected character
• Workout plans based on user goals
• Exercise tutorials with step-by-step instructions
• Daily fitness missions and challenges
• Gamified XP and level progression system
• Heart rate and blood pressure tracking
• Song library for personalized workout playlists
• "Power Mode" feature for post-workout celebration

The app will be developed using Flutter for cross-platform compatibility, ensuring seamless performance on both Android and iOS devices. Local assets will be utilized for avatars, and basic speech-to-text and text-to-speech functionalities will be integrated without relying on paid APIs.

3. Functional Requirements

User Stories:

• As a User, I should be able to select and customize my anime avatar (e.g., Goku, Gojo).
• As a User, I should be able to interact with my avatar via voice and text.
• As a User, I should be able to receive motivational feedback from my avatar during workouts.
• As a User, I should be able to view and follow workout plans tailored to my fitness goals.
• As a User, I should be able to access exercise tutorials with step-by-step instructions.
• As a User, I should be able to complete daily fitness missions (e.g., 50 pushups challenge).
• As a User, I should be able to earn XP and level up through gamified fitness activities.
• As a User, I should experience "Power Mode" animations and effects after completing workouts.
• As a User, I should be able to track my heart rate and blood pressure during workouts.
• As a User, I should be able to access a song library to create personalized workout playlists.

4. User Personas

1. Fitness Enthusiast

• Age: 18–35
• Interests: Fitness, anime, gaming
• Goals: Improve physical fitness, stay motivated, enjoy gamified experiences

2. Casual Gym-Goer

• Age: 25–45
• Interests: Light fitness, entertainment, anime fandom
• Goals: Stay active, explore fun ways to exercise

3. Anime Fan

• Age: 15–30
• Interests: Anime, gaming, cosplay
• Goals: Engage with anime-inspired content while staying fit

4. Health-Conscious User

• Age: 30–50
• Interests: Fitness, health tracking, wellness
• Goals: Monitor health metrics like heart rate and blood pressure while staying active

5. Visuals Colors and Theme

Color Palette:

• Background: #0D1B2A (Deep Navy Blue)
• Surface: #1B263B (Steel Blue)
• Text: #E0E1DD (Soft White)
• Accent: #FF4500 (Bright Orange)
• Muted Tones: #778899 (Slate Gray)

Theme:

The app will feature a futuristic anime + gaming aesthetic, blending neon accents with dark, sleek surfaces. The interface will evoke a sense of energy and excitement, aligning with the anime-inspired theme while maintaining a modern, tech-forward vibe.

6. Signature Design Concept

Interactive Anime Universe Landing Page with Health Metrics

The home screen of Future Fit will immerse users in an interactive anime universe. Upon opening the app, users will be greeted by their chosen avatar standing in a dynamic, animated environment (e.g., a dojo, a futuristic city, or a mystical forest).

Key Features:

• Avatar Animation: The avatar will perform idle animations (e.g., stretching, shadowboxing) and react to user interactions with unique gestures and expressions.
• Dynamic Backgrounds: The environment will subtly shift based on the time of day (e.g., sunrise, sunset, night sky).
• Health Metrics Display: Heart rate and blood pressure readings will be displayed in real-time on the home screen, integrated seamlessly into the environment (e.g., holographic panels or floating data bubbles).
• Interactive Elements: Users can tap on objects in the environment (e.g., weights, punching bags) to trigger micro-interactions like sound effects or mini animations.
• Power Mode Activation: Completing a workout will trigger a dramatic "Power Mode" sequence where the avatar powers up with glowing effects, accompanied by celebratory music and visuals.

This design concept ensures the app is not only functional but also unforgettable, creating a sense of immersion, excitement, and personalization for users.

7. Non-Functional Requirements

• The app must load within 3 seconds on standard mobile devices.
• Speech-to-text and text-to-speech functionalities must operate with 95% accuracy.
• The app must support offline mode for basic functionalities (e.g., viewing workout plans, accessing tutorials).
• The app must be compatible with Android 8.0+ and iOS 12.0+.
• All assets (avatars, animations, etc.) must be optimized for minimal storage usage.
• Health tracking features must comply with relevant regulations and standards for accuracy.

8. Tech Stack

Frontend:

• Flutter for cross-platform mobile app development

Backend:

• Python with FastAPI for API development

Database:

• MySQL or MariaDB for structured data (e.g., user profiles, workout plans)
• MongoDB for unstructured data (e.g., avatar configurations, speech interactions)

AI Models:

• Google Nano Banana for image generation (e.g., avatar assets)
• Claude 4.6 Opas for coding and academic assistance

AI Tools:

• Litellm for LLM routing
• Langchain for conversational AI workflows

Orchestration:

• Docker and docker-compose for local development
• Kubernetes for server-side orchestration

9. Assumptions and Constraints

Assumptions:

• Users will have basic familiarity with anime characters and gaming interfaces.
• The app will primarily target users in India, with localization options for Hindi and English.
• Users will have access to smartphones with internet connectivity.

Constraints:

• The app must not rely on paid APIs or external services for core functionalities.
• All avatar assets must be locally stored to minimize dependency on external resources.
• Speech-to-text and text-to-speech features must operate within the limitations of free libraries.
• Health tracking features must use free or open-source libraries for integration.

10. Glossary

• Avatar: A digital representation of a character chosen by the user.
• XP: Experience points earned through completing fitness activities.
• Power Mode: A celebratory feature activated after completing workouts.
• Speech-to-Text: Technology that converts spoken words into text.
• Text-to-Speech: Technology that converts text into spoken words.
• Heart Rate: The number of heartbeats per minute, measured during workouts.
• Blood Pressure: The pressure of circulating blood against the walls of blood vessels, tracked during workouts.

This SRD provides a comprehensive framework for the development of Future Fit under the eagle-avatar project. Raj kumar, let me know if there are any additional features or adjustments you'd like to include! 😊