System Requirements Document (SRD)

Project Name: Raven-Currency

1. Introduction

Raven-Currency is a professional-grade currency converter and calculator designed to cater to the needs of professionals dealing with frequent international transactions. The system also includes payment functionality, enabling users to subscribe to premium features for a $5 monthly subscription. This document outlines the system requirements for Raven-Currency, ensuring it delivers a seamless and reliable experience for its target audience.

2. System Overview

Raven-Currency aims to provide professionals with an intuitive and powerful tool for managing international transactions and currency calculations. The system will feature:

• A robust currency converter with real-time exchange rates.
• An advanced calculator for multi-currency operations.
• Historical currency trends and analytics for premium users.
• Payment integration for subscribing to premium features.

The platform will be fully responsive, ensuring accessibility for both desktop and mobile professionals.

3. Functional Requirements

• As a User, I should be able to convert currencies in real-time.
• As a User, I should be able to perform calculations involving multiple currencies.
• As a User, I should be able to view historical currency trends for analysis.
• As a User, I should be able to subscribe to premium features for $5 monthly.
• As an Admin, I should be able to manage subscription plans and user accounts.
• As an API Supervisor, I should be able to ensure pre-resolved currency data for professional-tier users.

4. User Personas

1. Professional User

• Description: Individuals or businesses requiring accurate and reliable tools for international transactions and budgeting.
• Goals: Efficient currency conversion, advanced calculations, and access to historical trends.
• Pain Points: Inaccurate exchange rates, lack of multi-currency support, and limited analytics.

2. Admin

• Description: System administrators responsible for managing subscriptions, user accounts, and platform operations.
• Goals: Ensure smooth operation of the system, manage premium features, and monitor user activity.

3. API Supervisor

• Description: Technical personnel ensuring the accuracy and reliability of currency data provided by the API.
• Goals: Deliver pre-resolved currency data for professional-tier users to guarantee precision and reliability.

5. Visuals Colors and Theme

Color Palette:

Raven-Currency will adopt a sleek, professional theme with a modern aesthetic.

• Background: #1A1A2E (Deep Midnight Blue)
• Surface: #16213E (Dark Slate Blue)
• Text: #EAEAEA (Soft White)
• Accent: #F05454 (Vibrant Coral Red)
• Muted Tones: #6C757D (Steel Gray)

This palette conveys professionalism, reliability, and a touch of vibrancy to keep the interface engaging.

6. Signature Design Concept

Concept: Interactive Currency Globe

The homepage will feature a 3D interactive globe that users can rotate and zoom into. Each country on the globe will display its currency symbol and exchange rate in real-time. Hovering over a country will reveal detailed currency information, including historical trends and conversion options.

• Animations: The globe will rotate gently by default, with smooth transitions when users interact. Currency data will appear as dynamic tooltips that fade in and out.
• Color Shifts: The globe will adopt the Raven-Currency color palette, with countries highlighted in Vibrant Coral Red for emphasis.
• Micro-Interactions: Clicking on a country will open a sidebar with advanced calculation tools and subscription options for premium features.
• User Experience: The globe creates an immersive and memorable first impression, making the platform instantly fascinating and engaging for professionals.

7. Non-Functional Requirements

• The system must provide real-time currency data with an accuracy of at least 99.9%.
• The platform must support high availability, with a minimum uptime of 99.5%.
• Payment processing must comply with PCI DSS standards for security.
• The system must be optimized for both desktop and mobile devices.
• Historical data must be stored securely and accessible within 2 seconds of a query.

8. Tech Stack

Frontend:

• React for Web
• React Native for Mobile

Backend:

• Python
• FastAPI

Database:

• MySQL or MariaDB (using Alembic for migrations)

AI Models:

• GPT 5.2 for user-friendly responses
• Claude 4.5 Opas for academic or coding work

AI Tools:

• Litellm for LLM Routing
• Langchain

Local Orchestration:

• Docker
• docker-compose

Server-Side Orchestration:

• Kubernetes

9. Assumptions and Constraints

Assumptions:

• Users will primarily be professionals requiring advanced currency tools.
• The $5 monthly subscription price is affordable and attractive to the target audience.
• The system will integrate with reliable APIs for currency data.

Constraints:

• The platform must comply with US financial regulations for payment processing.
• The system must support multiple time zones, with a default set to US Eastern Time (UTC-5).
• Premium features must be accessible only to subscribed users.

10. Glossary

• Currency Converter: A tool that converts one currency to another based on real-time exchange rates.
• Multi-Currency Calculator: A calculator capable of performing operations involving multiple currencies.
• Historical Trends: Data showing past exchange rates for analysis and forecasting.
• PCI DSS: Payment Card Industry Data Security Standard, ensuring secure payment processing.
• API Supervisor: A role responsible for ensuring the accuracy and reliability of data provided by APIs.