POS Internal Architecture

POS Components

Peripheral Devices

JavaPOS

Flexible access to range of Retail Peripherals, provided by the peripheral manufacturers

Database

JDBC

Local Master Data Repository · Transaction Data Store

POS Application

JVM

POS UI · POS Engines · Peripheral Control · Real-Time APIs

Services Application

Apache Daemon / JVM

Central Server Communications · Background Data Communications · Automated Processing (Transaction Flow up, Master Data Flow down)

Application Updater

JVM

Automated Upgrades (Normally Dormant)

Java

Operating System (Windows, Linux)

Component	Runtime	Function
Peripheral Devices	JavaPOS	Flexible access to range of Retail Peripherals (provided by peripheral manufacturers)
Database	JDBC	Local Master Data Repository and Transaction Data Store
POS Application	JVM	POS UI, POS Engines, Peripheral Control, Real-Time APIs
Services Application	Apache Daemon / JVM	Central Server Communications, Background Data Communications, Automated Processing (Transaction Flow up, Master Data Flow down)
Application Updater	JVM	Automated Upgrades (Normally Dormant)

All components run on Java over the Operating System (Windows, Linux).

Enactor Software Components

UI Libraries

JSPJSFHTML 5Java SwingReactiOS/Android

Enactor UI specific jars

Process Flow

Application FlowBusiness Process Flow

Enactor core UI jars

Model

Business LogicApplicationEntities/Servers

Enactor core jars

Services

Background ServicesXML TransformationIntegration Broker (JBI)Search EngineSoftware UpdatesPipelinesMonitoring (JMX)TransactionsWeb ServicesQueuesSingle Sign OnDatabase Connection (JDBC)BPEL EngineMessagingDirectory ServicesFile Import/Export

Enactor core jars + Third Party jars

Runtime

Java

Java jars

Layer	Components	Packaging
UI Libraries	JSP, JSF, HTML 5, Java Swing, React, iOS/Android	Enactor UI specific jars
Process Flow	Application Flow, Business Process Flow	Enactor core UI jars
Model	Business Logic, Application, Entities/Servers	Enactor core jars
Services	Background Services, XML Transformation, Integration Broker (JBI), Search Engine, Software Updates, Pipelines, Monitoring (JMX), Transactions, Web Services, Queues, Single Sign On, Database Connection (JDBC), BPEL Engine, Messaging, Directory Services, File Import/Export	Enactor core jars + Third Party jars
Runtime	Java	Java jars

React UI

Enactor POS

↓

Android

Embedded Native Browser

Mobile phones, tablets

iOS / macOS

Embedded Native Browser

iPhones, iPads

Windows

Chromium Browser Engine

Fixed POS terminals

Linux

Chromium Browser Engine

Fixed POS, laptops

The Enactor POS application uses a React-based UI that renders consistently across all platforms:

Platform	Browser Engine	Devices
Android	Embedded Native Browser	Mobile phones, tablets
iOS / macOS	Embedded Native Browser	iPhones, iPads
Windows	Chromium Browser Engine	Fixed POS terminals
Linux	Chromium Browser Engine	Fixed POS, laptops

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Further Reading

Document	Description
POS Styles and Themes	Configuring React POS UI themes and styles
Configuring Branding For React POS UI	Customising React POS branding
Configuring Keonn RFID Reader	Peripheral device integration - RFID reader
Devices, Locations and Terminals	Device and terminal data integration
Technical Architecture Videos	Video tutorials on technical architecture topics