PackFlow-app System Requirements Document

1. Introduction

The PackFlow-app is a web application designed to serve as a simple Packhouse Operations Management System. The primary goal is to develop a Minimum Viable Product (MVP) that addresses the most significant daily operational challenges faced by packhouses. The application aims to be simple, functional, and easy to demonstrate to a real packhouse manager, with a focus on core features essential for daily operations.

2. System Overview

PackFlow-app is intended to streamline packhouse operations by providing tools for production tracking, downtime logging, quality issue management, and shift handovers. The application will support multiple user roles, including managers and supervisors, and will be designed to accommodate various countries and metrics. It will be a subscription-based service, allowing multiple farms to use the system with secure login credentials. The app will be scalable, ensuring long-term stability and ease of use.

3. Functional Requirements

• As a Manager, I should be able to log in to the system with secure credentials.
• As a Supervisor, I should be able to log in to the system with secure credentials.
• As a Manager, I should be able to track daily production by entering date, shift, product/variety, production line, target quantity, actual quantity packed, and hours worked.
• As a Supervisor, I should be able to view the daily production dashboard showing today's target vs actual production, production by line, daily performance percentage, and recent production entries.
• As a Manager, I should be able to log downtime by entering date, production line, duration, reason, and notes.
• As a Supervisor, I should be able to view a dashboard showing total downtime and the most common downtime reasons.
• As a Manager, I should be able to log quality issues by entering product, issue type, quantity rejected, and notes.
• As a Supervisor, I should be able to view total rejects and main problems from the quality issues log.
• As a Supervisor, I should be able to add problems, notes, and tasks for the next shift in the daily shift handover.
• As a Manager, I should be able to generate and export production, downtime, and quality reports to Excel.

4. User Personas

• Manager: Responsible for overseeing the entire packhouse operations, making strategic decisions, and ensuring targets are met.
• Supervisor: Manages daily operations on the production floor, tracks performance, and handles shift handovers.

5. Core User Flows

• Manager logs in -> Enters daily production data -> Reviews dashboard -> Logs downtime -> Logs quality issues -> Generates reports.
• Supervisor logs in -> Reviews daily production dashboard -> Logs downtime -> Logs quality issues -> Adds shift handover notes -> Reviews reports.

6. Visuals Colors and Theme

• primary: #2A9D8F (Teal)
• primary_light: #A8DADC (Light Teal)
• secondary: #E76F51 (Coral)
• accent: #F4A261 (Sandy Orange)
• highlight: #E9C46A (Golden Yellow)
• bg: #F1FAEE (Off White)
• surface: rgba(42, 157, 143, 0.8)
• text: #264653 (Dark Slate)
• text_muted: #8D99AE (Muted Gray)
• border: rgba(38, 70, 83, 0.2)

7. Signature Design Concept

The PackFlow-app will feature an interactive "Production Line Journey" on the homepage. Users will navigate through a virtual production line, where each station represents a core feature of the app. As users hover over each station, animations will reveal detailed information and statistics, creating an engaging and informative experience. This concept will utilize @react-three/fiber for 3D interactions and framer-motion for smooth animations, providing an immersive introduction to the app's capabilities.

8. Interaction Model & Motion Direction

The landing page will employ a "parallax" interaction model, creating a sense of depth as users scroll through layered content. Each section will feature a unique interactive element, such as kinetic typography or scroll-triggered animations, to maintain user engagement. Internal pages will prioritize a "static" model for clarity and ease of use, focusing on data presentation and user input.

9. Non-Functional Requirements

• The system must support multiple user roles with secure access control.
• The application should be responsive and tablet-friendly.
• Performance must be optimized for daily use, with fast load times and minimal downtime.
• The system should be scalable to accommodate future expansion into a full SaaS product.

10. Tech Stack

• Frontend: React for Web
• Backend: Python, FastAPI
• Database: MySQL or MariaDB, using Alembic for migrations
• Local orchestration: Docker, docker-compose
• Server-side orchestration: Kubernetes

11. Assumptions and Constraints

• The application will initially focus on core MVP features, with the potential for future expansion.
• The system must be able to handle multiple farms with separate login credentials.
• Security and data privacy are critical, given the subscription-based model.

12. Glossary

• MVP: Minimum Viable Product
• SaaS: Software as a Service
• UI: User Interface
• UX: User Experience
• Kubernetes: An open-source system for automating deployment, scaling, and management of containerized applications.