System Requirements Document (SRD)

Silent-App

1. Introduction

The Silent-App is a cutting-edge application designed to help users track their protein and calorie intake with ease. Developed for fitness enthusiasts, health-conscious individuals, and anyone managing dietary goals, the app combines advanced scanning capabilities with robust tracking and planning features.

This document outlines the system requirements for the Silent-App, ensuring a clear understanding of its functionality, design, and technical foundation. The app will cater to users in India (IN), with locale-specific defaults such as the Indian Rupee (₹) for currency and IST (Indian Standard Time) as the default timezone.

2. System Overview

The Silent-App will serve as a comprehensive dietary tracking tool. Its primary features include:

• Barcode and nutritional label scanning for quick food logging.
• Manual entry of food items for custom tracking.
• Daily protein and calorie goal setting and tracking.
• Meal planning and recipe suggestions tailored to user preferences.
• Progress tracking with visual analytics.
• Integration with fitness wearables for seamless data synchronization.

The app will be available on both web and mobile platforms, ensuring accessibility and convenience for users.

3. Functional Requirements

Core Functionalities:

• As a User, I should be able to scan barcodes or nutritional labels to log food items.
• As a User, I should be able to manually enter food items and their nutritional values.
• As a User, I should be able to set daily protein and calorie goals.
• As a User, I should be able to view my daily progress towards these goals.
• As a User, I should be able to receive meal suggestions based on my dietary preferences.
• As a User, I should be able to track my progress over time using visual analytics.
• As a User, I should be able to sync data with fitness wearables for a holistic view of my health.

Administrative Functionalities:

• As an Admin, I should be able to manage the food database, including adding, updating, or removing items.
• As an Admin, I should be able to monitor user activity and generate reports.

4. User Personas

1. Regular User

• Description: Individuals focused on tracking their dietary intake, setting goals, and monitoring progress.
• Needs: Easy food logging, goal tracking, and personalized meal suggestions.

2. Admin

• Description: System administrators responsible for maintaining the app's functionality and database.
• Needs: Tools to manage the food database and monitor user activity.

5. Visuals Colors and Theme

The Silent-App will feature a sleek and modern design with a focus on health and wellness. The color palette is designed to evoke trust, energy, and clarity:

• Background: #F2F7F5 (Soft Mint Green)
• Surface: #FFFFFF (Pure White)
• Text: #333333 (Deep Charcoal)
• Accent: #FF6F61 (Vibrant Coral)
• Muted: #B0BEC5 (Soft Gray-Blue)

This palette ensures a clean and inviting interface that promotes usability and focus.

6. Signature Design Concept

The Silent-App will feature a dynamic, interactive homepage that immerses users in their health journey.

Concept: "The Nutritional Dashboard"

The homepage will resemble a personalized health dashboard, with animated, circular progress bars representing daily protein and calorie goals. These progress bars will fill dynamically as users log their meals, creating a sense of accomplishment.

Key elements:

• Interactive Scanning Animation: A 3D barcode scanner that lights up and animates when users scan food items.
• Meal Suggestion Carousel: A rotating carousel of meal suggestions, with vibrant images and nutritional breakdowns.
• Progress Visualization: A timeline slider that allows users to view their progress over the past week, with smooth transitions and color-coded analytics.
• Micro-Interactions: Subtle animations, such as buttons that "bounce" when clicked and tooltips that fade in and out.

This design will make the Silent-App not only functional but also visually captivating and engaging.

7. Non-Functional Requirements

• Performance: The app must load within 2 seconds on mobile devices and 1.5 seconds on web platforms.
• Scalability: The system should support up to 1 million active users without performance degradation.
• Security: All user data must be encrypted both in transit and at rest.
• Localization: The app must support Indian locale defaults, including currency (₹) and timezone (IST).
• Accessibility: The app must comply with WCAG 2.1 Level AA standards.

8. Tech Stack

Frontend:

• React for Web
• React Native for Mobile

Backend:

• Python
• FastAPI

Database:

• MySQL (with Alembic for migrations)

AI Models:

• GPT 5.4 for user-friendly responses
• Claude 4.6 Opas for coding and academic tasks

AI Tools:

• Litellm for LLM Routing
• Langchain

Orchestration:

• Docker for local orchestration
• Kubernetes for server-side orchestration

9. Assumptions and Constraints

• The app assumes users have access to smartphones with cameras for barcode scanning.
• The system will rely on third-party APIs for barcode and nutritional data.
• The app will initially target the Indian market, with potential expansion to other regions in the future.
• Fitness wearable integration will be limited to popular brands like Fitbit and Garmin during the initial release.

10. Glossary

• Barcode Scanning: The process of using a device's camera to read barcodes on food packaging to retrieve nutritional information.
• Nutritional Label: A label on food packaging that provides information about the nutritional content of the food.
• Progress Visualization: Graphical representation of a user's dietary progress over time.
• Fitness Wearables: Devices such as smartwatches or fitness trackers that monitor physical activity and health metrics.
• WCAG 2.1: Web Content Accessibility Guidelines, a set of standards for making web content accessible to people with disabilities.

End of Document