Django_Basic_Manufacturing_3/architecture_plan.md

Django Manufacturing App - Architectural Plan

System Overview

This is a comprehensive manufacturing management system built with Django that includes user management, inventory control, sales, purchasing, manufacturing with BOM (Bill of Materials), database management, reporting, and dashboard functionalities.

High-Level Architecture

graph TD
    A[User Interface] --> B[Django Application]
    B --> C[Authentication & Authorization]
    B --> D[Business Logic Layer]
    D --> E[Data Access Layer]
    E --> F[(Database - SQLite/PostgreSQL)]
    
    subgraph Django Application
        C
        D
        E
    end
    
    subgraph Modules
        G[User Management]
        H[Inventory Management]
        I[Purchase Management]
        J[Sales Management]
        K[Manufacturing with BOM]
        L[Database Management]
        M[Reporting]
        N[Dashboard]
    end
    
    D --> G
    D --> H
    D --> I
    D --> J
    D --> K
    D --> L
    D --> M
    D --> N
    
    M --> O[Excel Export]
    N --> P[Print Functionality]
    L --> Q[Backup/Restore]

Module Breakdown

1. User Management

• User registration and authentication
• Role-based access control (RBAC)
• Permission system (superuser can access all modules)
• User profile management

2. Inventory Management

• Product catalog management
• Stock level tracking
• Warehouse/inventory location management
• Stock movement history

3. Purchase Management

• Supplier management
• Purchase order creation and tracking
• Goods receipt verification
• Supplier performance tracking

4. Sales Management

• Customer management
• Sales order processing
• Invoice generation
• Delivery tracking

5. Manufacturing with BOM

• Bill of Materials management
• Production order tracking
• Work order management

6. Database Management

• Backup functionality
• Restore functionality
• Database initialization
• Data migration tools

7. Reporting

• Custom report generation
• Excel export capabilities
• Data visualization
• Scheduled reports

8. Dashboard

• Key performance indicators (KPIs)
• Real-time data visualization
• Printable dashboard views
• Customizable widgets

Technology Stack

• Backend: Python Django
• Database: SQLite (development) → PostgreSQL (production)
• Frontend: Bootstrap 5 for responsive UI
• Styling: Modern CSS with preprocessors
• Internationalization: Indonesian language support
• Timezone: Asia/Jakarta
• Reporting: Excel export using openpyxl or similar

Database Schema Overview

erDiagram
    USER ||--o{ USER_ROLE : has
    USER_ROLE }|--|| ROLE : defines
    ROLE ||--o{ PERMISSION : includes
    
    PRODUCT ||--o{ INVENTORY : tracked
    INVENTORY ||--o{ STOCK_MOVEMENT : records
    
    SUPPLIER ||--o{ PURCHASE_ORDER : creates
    PURCHASE_ORDER ||--o{ PO_ITEM : contains
    
    CUSTOMER ||--o{ SALES_ORDER : places
    SALES_ORDER ||--o{ SO_ITEM : contains
    
    PRODUCT ||--o{ BOM : defined
    BOM ||--o{ BOM_ITEM : contains
    MANUFACTURING_ORDER ||--o{ MO_ITEM : produces
    
    USER ||--o{ ACTIVITY_LOG : performs

Project Structure

manufacturing_app/
├── manage.py
├── manufacturing_app/
│   ├── __init__.py
│   ├── settings.py
│   ├── urls.py
│   ├── wsgi.py
│   └── asgi.py
├── apps/
│   ├── accounts/
│   ├── inventory/
│   ├── purchasing/
│   ├── sales/
│   ├── manufacturing/
│   ├── reports/
│   ├── dashboard/
│   └── database_management/
├── templates/
│   ├── base.html
│   ├── accounts/
│   ├── inventory/
│   ├── purchasing/
│   ├── sales/
│   ├── manufacturing/
│   ├── reports/
│   └── dashboard/
├── static/
│   ├── css/
│   ├── js/
│   ├── images/
│   └── vendors/
├── media/
├── fixtures/
├── requirements.txt
└── README.md

Key Features Implementation Plan

Authentication & Authorization

• Django's built-in authentication system
• Custom permission mixins for module access control
• Superuser with full access by default
• Role-based permissions for different user types

Database Configuration

• SQLite for development environment
• PostgreSQL configuration ready for production
• Environment-based settings management

UI/UX Design

• Bootstrap 5 for responsive design
• Modern theme with fast loading
• Reusable template components
• Mobile-friendly interface

Internationalization

• Indonesian language as primary language
• Django's i18n support
• Timezone set to Asia/Jakarta

Development Workflow

1. Set up development environment
2. Create project structure
3. Implement core modules one by one
4. Develop UI templates with Bootstrap
5. Implement permissions and authentication
6. Add reporting and dashboard features
7. Implement database management tools
8. Testing and quality assurance
9. Documentation