Skip to content

Main Navigation Home Overview Delivery

Extended Modules

Industry Solutions

Backend Packages

English

English

Appearance

Sidebar Navigation

Developer

Overview

Platform Facts

Security

Developer Guides

Getting Started

Build System

Environment Reference

Git Workflow

IGNIS Patterns

Architecture & Reference

System Architecture

Event Architecture

Database Guide

Testing Guide

Applications (Frontend)

Overview

Frontend Patterns

Web App

Admin Dashboard (Client)

Back Office (BO)

Mobile App

POS UI (Renderer)

POS Terminal (Main)

Libraries

Admin UI Kit

Backend Packages

Overview

Conventions

Development Lifecycle

Docs Structure

Numeric Input Limits

Authorization Domain Scoping

Core

Concepts

Architecture

Database

Overview

ERD

Public Schema

Pricing Schema

Allocation Schema

Inventory Schema

Finance Schema

Payment Schema

Sale Schema

Outreach Schema

Migrations

Components

Overview

Default Application

Network Services

Bootstrap Helpers

Event Bus

Redis Connection Factory

Base Socket Event Service

Utilities

Overview

ID Generator

Date Utility

Request Context

Crypto Utility

Configuration

Overview

Environment

Constants

Events

Queues

Identity

Concepts

Architecture

Domain Model

Integration

Reference

API & Events

Configuration

Operations

Decisions

Commerce

Concepts

Architecture

Domain Model

Integration

Reference

API & Events

Configuration

Operations

Decisions

Sale

Concepts

Architecture

Domain Model

Integration

Reference

API & Events

Configuration

Operations

Decisions

Inventory

Concepts

Architecture

Domain Model

Integration

Reference

API & Events

Configuration

Operations

Decisions

Pricing

Concepts

Architecture

Domain Model

Integration

Reference

API & Events

Configuration

Operations

Decisions

Payment

Concepts

Architecture

Domain Model

Integration

VNPAY IPN Contract

Reference

API & Events

Configuration

Operations

Decisions

Finance

Concepts

Architecture

Domain Model

Integration

Reference

API & Events

Configuration

Operations

Decisions

Ledger

Concepts

Architecture

Domain Model

Integration

Reference

API & Events

Configuration

Operations

Decisions

Invoice

Concepts

Architecture

Domain Model

Integration

Reference

API & Events

Configuration

Operations

Decisions

Taxation

Concepts

Architecture

Domain Model

Integration

Reference

API & Events

Configuration

Operations

Decisions

Licensing

Concepts

Architecture

Domain Model

Integration

Reference

API & Events

Configuration

Operations

Decisions

Outreach

Concepts

Architecture

Domain Model

Integration

Reference

API & Events

Configuration

Operations

Decisions

Asset

Concepts

Architecture

Domain Model

Integration

Reference

API & Events

Configuration

Operations

Decisions

Search

Concepts

Architecture

Domain Model

Integration

Reference

API & Events

Configuration

Operations

Decisions

Signal

Concepts

Architecture

Domain Model

Integration

Reference

API & Events

Configuration

Operations

Decisions

Gateway

Concepts

Architecture

Domain Model

Reference

API & Events

Configuration

Operations

Decisions

Helpdesk

Concepts

Architecture

Domain Model

Integration

Reference

API & Events

Configuration

Operations

Decisions

Integrations

Overview

MQ-Pay (Payments)

Providers

VNPAY QR MMS

VNPAY Phone POS

VNPAY Smart POS

System (Cash/Bank)

API Reference

Webhooks & IPN

IIAPI (E-Invoice)

Invoice Types

VAT Invoice

Sale Invoice

POS Invoice

API Reference

Webhooks

Compliance

T-VAN (Tax)

Tax Lookup

Invoice Message Query

API Reference

Compliance

MQ-SMS

Infrastructure

Overview

Multi-Tenancy (PRD)

Decisions

Cluster Design

Workloads

Networking

Data Layer

Database Sizing

Kafka

CDC / Debezium

Configuration

Observability

Security & Hardening

Operations

On this page

Infrastructure Decisions

ID	Status	Date	Title	Supersedes
0001	Draft	2026-05	Multi-tenancy isolation tiers (Pool / Bridge / Silo)	-

Last updated:

Pager

Previous pageMulti-Tenancy (PRD)

Next pageCluster Design

Proprietary and Confidential. Unauthorized copying, distribution, or use of this software is strictly prohibited.

Copyright © 2025-present NEXPANDO. All rights reserved.