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Technical Architecture Overview

LeanERP Core Architecture Multi-Tenant SaaS Platform

Hệ sinh thái 45+ modules, 6 ứng dụng cốt lõi — kiến trúc microservices-native, event-driven, horizontal scaling. Được thiết kế cho enterprise Việt Nam: data sovereignty, ISO 27001 ready, AI-embedded từ core.

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Uptime SLA
Multi-AZ deployment
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P95 Latency
API Gateway cached
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Concurrent Users
Per tenant isolate
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Modules
Hot-pluggable
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Technology Stack

Layered Architecture

Mỗi layer tách biệt trách nhiệm, deploy độc lập, scale độc lập. Zero shared state giữa tenants.

L1

Presentation Layer

Multi-channel Frontend
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React 18 + TypeScript SSR via Next.js, PWA enabled
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React Native / Expo iOS/Android app từ cùng codebase
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Widget SDK Embed dashboard vào portal khách
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Grafana + Custom Panels Real-time ops dashboards
Bundle: 180KB gzipped TTI: < 2.1s Lighthouse: 98/100
L2

API Gateway & Mesh

Traffic Control & Security
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Kong Gateway (3 nodes) Rate limit, auth, transform
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OAuth 2.1 + OIDC Keycloak SSO, MFA, SCIM
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Service Mesh (Istio) mTLS, circuit breaker, retry
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GraphQL Federation Apollo Router, unified schema
Throughput: 50k req/s P99: < 50ms Auth: JWT RS256 + JWKS
L3

Core Microservices

Domain-Driven, Event-Sourced
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LeanERP Core Multi-tenant kernel, module registry, RBAC engine, audit log
Go 1.22 · gRPC · 12 services
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6S Engine Card workflow 7-state, QR asset, Pareto, Kanban, PWA sync
Go + WASM plugins · 8 services
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TPM/OEE CIL scheduler, predictive MTBF, digital twin, MQTT ingest
Python + Rust · Time-series DB
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TQM/CAPA 8D, NCR workflow, risk matrix (FMEA), audit trail immutable
Go · Event store · 6 services
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Lean/DMAIC VSM engine, waste classifier, ROI calc, project portfolio
TypeScript · D3.js · 4 services
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BSC/OKR Strategy map, KPI cascade, traffic-light, initiative tracking
Go · GraphQL · 5 services
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AI Platform RAG pipeline, 9Router LLM gateway, fine-tuning, eval harness
Python · FastAPI · Qdrant · 7 services
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Knowledge/LMS SOP management, LMS, video library, Wiki sync, search
TypeScript · Meilisearch · 4 services
Total: 46 services Languages: Go, Python, TypeScript, Rust Protocol: gRPC + REST + GraphQL
L4

Data & Observability

Unified Data Plane
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PostgreSQL (Citus) Multi-tenant sharding, RLS, PITR
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Redis Cluster Cache, sessions, pub/sub, rate limit
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Apache Kafka (MSK) Event backbone, 30+ topics, exactly-once
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ClickHouse OLAP, time-series, 100B+ events/mo
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Qdrant Vector DB RAG embeddings, hybrid search, HNSW
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Grafana Stack Prometheus, Tempo, Loki, Pyroscope
Data: 2.4TB hot, 15TB cold Retention: 7yr audit, 13mo metrics Compliance: ISO 27001, SOC 2, VN data law
Module Registry

45+ Modules — Technical Specifications

Mỗi module hot-pluggable, versioned independently, defined by manifest (OpenAPI + JSON Schema).

Deployment Timeline

12-Week Standardized Rollout

Quy trình có thể lặp lại, đo lường được, đã validate tại 60+ doanh nghiệp sản xuất Việt Nam.

01

Tuần 1-2: Discovery & Baseline

14 ngày
  • AS-IS Mapping: Value Stream Mapping 3 cấp độ (Enterprise → Factory → Line)
  • Data Audit: Schema discovery, data quality scoring, migration complexity
  • Baseline Metrics: OEE, MTTR, Changeover, Defect Rate, On-time Delivery, Labor Productivity
  • Stakeholder Alignment: RACI matrix, success criteria, risk register
  • Technical Prep: Infra provisioning (Terraform), tenant bootstrap, SSO config, network policies
📋 Assessment Report 📊 Baseline Dashboard 🗺️ Migration Plan ⚙️ Tenant Provisioned
02

Tuần 3-4: Configuration & Integration

14 ngày
  • Core Config: Organization hierarchy, user/role/location, number series, UoM, currency
  • Module Activation: Enable 6 core apps per roadmap, configure workflows, business rules
  • Data Migration: ETL pipeline (Airbyte), master data load, historical 24 months, validation checksums
  • Integrations: ERP legacy (REST/SOAP/CSV), MES/OPC-UA, IoT gateways, SSO (SAML/OIDC)
  • Test Harness: Cypress E2E, Postman contract tests, k6 load scripts, chaos engineering baseline
🔧 Config Spec Sign-off 📦 Data Validated 🔌 Integrations Live 🧪 Test Suite Passing
03

Tuần 5-8: Pilot & Train-the-Trainer

28 ngày
  • Pilot Launch: 1-2 factory sites, super-user cohort (15-20 people per site)
  • Train-the-Trainer: 40h curriculum, hands-on labs, certification exam, SOP co-creation
  • Feedback Loops: Daily standups, weekly retrospectives, Jira issue triage, config iteration
  • Metrics Tracking: Adoption rate, task completion, defect density, NPS weekly pulse
  • Go/No-Go: Week 8 gate review — sign-off from ops, IT, finance, C-suite
👥 Certified Trainers 📚 SOP Library v1.0 📈 Pilot KPI Report ✅ Go/No-Go Decision
04

Tuần 9-12: Scale & Optimize

28 ngày
  • Phased Rollout: Wave-based deployment (3 factories/wave), feature flags control
  • Hypercare: 30-day dedicated support, 4h SLA critical, daily war room
  • Optimization: Query tuning, index review, cache warming, capacity planning
  • ROI Measurement: Month 1 vs baseline, OEE delta, labor savings, defect reduction
  • Handover: Runbook delivery, on-call rotation, quarterly business review cadence
🏭 Full Deployment 💰 ROI Realized 📖 Runbooks Delivered 🔄 Steady State Ops
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Total Calendar Days
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Core Applications
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Factories Onboarded
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Avg ROI Year 1
Evidence & Compliance

Measured Outcomes & Certifications

Không marketing — chỉ số thực từ production, audit bên thứ 3, và customer references.

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Production Performance

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API Availability (12m)
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P95 Latency (global)
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Error Rate (5xx)
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Req/s Peak
Xem Grafana Dashboard ↗
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Customer Outcomes (Aggregated)

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OEE Improvement
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Downtime Reduction
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Defect Rate Drop
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ROI Year 1
Case Studies ↗
🛡️

Security & Compliance

✓
ISO 27001:2022 Certified — Scope: SaaS Platform Operations
✓
SOC 2 Type II Annual audit — Security, Availability, Confidentiality
✓
Data Localization Viettel IDC Hà Nội — Vietnam data sovereignty
✓
Penetration Test Quarterly (CrowdStrike), 0 critical findings 2024
✓
Business Continuity RPO < 1h, RTO < 4h, DR tested quarterly
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ISO 27017/27018 Cloud security controls — In progress, Q2 2025
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Platform Scale

Active Tenants 67 (23 enterprise, 44 SME)
Daily Active Users 12,400+ across all modules
Events Processed/Day 2.8B (Kafka + ClickHouse)
API Calls/Day 45M (REST + GraphQL)
Storage (Hot) 2.4 TB (PostgreSQL + Redis)
Storage (Cold) 15 TB (ClickHouse + S3)
Vector Dimensions 1,024 (bge-m3), 15M vectors
ML Inferences/Day 850k (RAG + predictive)
Developer Experience

API Reference & Live Explorer

OpenAPI 3.1 spec, GraphQL introspection, SDKs (TypeScript, Python, Go), sandbox environment.

OAuth 2.1 Client Credentials hoặc JWT Bearer. Get sandbox credentials →

Technical Partnership

Chúng tôi tìm kiếm partner công nghệ: system integrators, MSPs, ISVs muốn embed LeanERP vào giải pháp của mình. Revenue share, co-sell, white-label — discuss with our platform team.

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