How to ARCHITECT AN ECONOMICAL ERP PLATFORM SYSTEM
Building an economical ERP platform system from scratch — and proving it works end-to-end ✅
Watch a complete enterprise order-to-cash + procure-to-pay lifecycle — fully automated, zero manual clicks.
🏗️ The architecture
8 cloud-native Java 21 / Spring Boot microservices (Finance, SCM, Manufacturing, Logistics, HRM, CRM, Analytics)
Traefik + API Gateway, Keycloak OAuth2/OIDC security, multi-tenant by design
Kafka event backbone · PostgreSQL-per-service · Redis caching
🧪 The testing pyramid
~36 JUnit unit tests across every service
16 Playwright E2E specs with 14 reusable Page Objects
One mega-spec that runs the entire business in 15 steps
🔁 What the Business Life Cycle does
✅ Multi-role sign-in/sign-out (procurement, finance, manufacturing…)
✅ Notification-driven PO approval workflow
✅ Stock-on-hand delta validation across the whole cycle
✅ P&L-neutral project closure — exactly like the real thing 💪
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