Research Index

Available Research Documents

ERP Systems Architecture

File: ERP_SYSTEMS_RESEARCH.md

Comprehensive research on three leading ERP systems (Basic Level):

1. Odoo ERP (Open Source, Python + PostgreSQL)
   - Data Models (Product, Sales, Purchase, Inventory, Accounting, Manufacturing)
   - ORM Architecture & Relationships (Many2one, One2many, Many2many)
   - Module Architecture & Integration Patterns
   - PDF Document Generation (QWeb templates)
   - UI Patterns (List, Form, Kanban, Pivot, Dashboard, Calendar)
   - Workflow & Status Machine
   - RBAC & Access Control

2. ERPNext (Open Source, Frappe Framework, MariaDB)
   - DocType-based Metadata-Driven Architecture
   - Frappe Framework (Python/JavaScript/Vue.js)
   - DocType System (dynamic field management)
   - Master Data (Customer, Supplier, Item, Warehouse)
   - Transactional Flows (Selling: Quotation → SO → DN → Invoice)
   - Buying Flows (PO → Receipt → Invoice)
   - Stock Management (Stock Entry, Bin, Warehouse)
   - Accounting (Journal Entry, Payment Entry, GL Entry)
   - UI Views (List, Form, Report, Board/Kanban, Calendar)
   - DocStatus Workflow (Draft → Submitted → Paid/Cancelled)
   - User Permissions & Role-Based Access Control

3. SAP Business One (Enterprise, T-SQL, HANA/MSSQL)
   - Master Data (Business Partner, Item Master, G/L Account, Warehouse)
   - Fixed Schema Architecture (Table-based)
   - Document Management (OPCH PO, OIGN GR/PO, APCH Invoice, etc)
   - Purchasing Flow (PO → GR/PO → A/P Invoice → Payment)
   - Sales Flow (SO → Delivery → A/R Invoice → Payment)
   - Status Transitions & Document Workflows
   - Access Control (Roles, Approval Workflows, Amount-based Authorization)
   - Audit Trail & Security Features
   - Enterprise Scalability

Comparison Matrices

• Architectural Characteristics (Database, Language, Deployment, Scalability)
• Data Models Comparison (ORM approach, Schema management)
• Document Management (PDF generation, Storage, Templates)
• UI/UX Patterns (Frameworks, Mobile, Customization)

Recommendations for Pirotehnika

• Module structure proposal
• Data model architecture
• Component reusability patterns
• Key insights from each system

Document Structure

Each system section includes:

├── Overview (Platform, Language, Architecture)
├── Data Models
│   ├── Core Entities
│   ├── Relationships
│   └── Key Fields
├── Modules & Components
│   ├── Module List
│   ├── Integration Patterns
│   └── Reusable Components
├── Document Handling
│   ├── Document Types
│   ├── PDF Generation Method
│   ├── Storage Options
│   └── Templates System
└── UI Patterns
    ├── View Types
    ├── Navigation
    └── Analytics & Reports

Total Content

• 3,020 lines of detailed analysis
• 3 ERP Systems researched in depth (Odoo, ERPNext, SAP Business One)
• Multiple Comparison Matrices (Data Models, Functionality, UI/UX, TCO)
• Detailed Architecture Breakdown for each system:
• Master Data structures
• Transactional documents
• Module integration patterns
• Workflow & status management
• Access control systems
• UI Pattern Analysis (List views, Forms, Reports, Dashboards, Kanban)
• Common Components (Reports, Notifications, APIs, Integrations)
• Use Case Recommendations (Startup, SMB, Enterprise)
• Official documentation sources cited

How to Use

1. Quick Overview: Read the summary section of each ERP system
2. Data Model Deep Dive: Jump to section 1.2, 2.2, 3.2, 4.2
3. Comparison: See section 5 for comparative analysis
4. Recommendations: See section 6 for Pirotehnika architecture

Related Documents

• architect/standards/CODE_LIBRARY.md — Library structure standards
• architect/theory/ECOSYSTEM.md — Platform ecosystem theory
• projects/org/pirotehnika/CLAUDE.md — Pirotehnika project context

Last Updated: 2026-01-02
Next Review: 2026-06-02 (or when new major ERP versions released)