ePOS SDK Glossary

Understand key terms and concepts used throughout the Teya ePOS SDK documentation. This glossary covers technical terminology, payment processing concepts, and industry-specific definitions.

A - E

API (Application Programming Interface)

A set of protocols and tools that allow different software applications to communicate with each other. The ePOS SDK provides APIs for payment processing, inventory management, and hardware integration.

Authorization

The process of verifying that a payment card has sufficient funds and that the transaction is legitimate. This step occurs before a payment is captured or settled.

Batch Processing

The practice of processing multiple transactions together at scheduled intervals, typically used for settlement and reporting purposes.

Capture

The process of requesting funds transfer from a previously authorized transaction. Funds are typically captured when goods are shipped or services are delivered.

EMV

Europay, Mastercard, and Visa standard for chip card payments that provides enhanced security through dynamic authentication for each transaction.

ePOS (Electronic Point of Sale)

A digital system that combines hardware and software to process sales transactions, manage inventory, track customers, and generate reports.

F - P

Gateway

A service that processes payment transactions by securely transmitting transaction data between merchants, payment processors, and banks.

Inventory Management

The system for tracking product quantities, locations, and movement throughout the supply chain, integrated into the ePOS system for real-time stock updates.

Merchant Account

A special type of business bank account that allows merchants to accept and process electronic payments from customers.

MOTO (Mail Order / Telephone Order)

A card payment taken while the cardholder is not present - for example, an order placed over the phone or by mail. The operator keys the card details into the terminal instead of the customer tapping or inserting a card.

NFC (Near Field Communication)

A wireless communication technology that enables contactless payments by allowing devices to exchange data when in close proximity (typically within 4 cm).

PCI DSS

Payment Card Industry Data Security Standard - a set of security requirements designed to protect cardholder data throughout payment processing.

A communication protocol that enables ePOS applications to integrate with external systems, including legacy POS systems, payment card machines, and back-office software.

R - Z

Refund

The process of returning funds to a customer's payment method, typically for returned merchandise or cancelled services. A referenced refund is linked to the original payment via its transaction reference; an unreferenced refund is a standalone card-present credit not tied to any original sale.

SDK (Software Development Kit)

A collection of software development tools, documentation, code samples, and guides that developers use to create applications for specific platforms or services.

Settlement

The final step in payment processing where funds are transferred from the customer's account to the merchant's account, typically occurring 1-3 business days after authorization.

Card Machine

A hardware device used to process payment transactions, including card readers, PIN pads, and contactless payment acceptance devices.

Token/Tokenization

A security technique that replaces sensitive payment card data with unique identification symbols (tokens) that retain essential information without compromising security.

Void

The cancellation of a transaction before settlement, preventing funds from being transferred. Voids must typically occur on the same business day as the original transaction.

Webhook

An HTTP callback mechanism that allows the ePOS system to receive real-time notifications about events such as successful payments, failed transactions, or inventory updates.

Payment Methods

Traditional Cards

  • Visa, Mastercard, American Express
  • Debit cards with PIN verification
  • Chip and PIN/signature cards
  • Magnetic stripe (legacy support)

Digital Payments

  • Apple Pay, Google Pay, Samsung Pay
  • Contactless card payments (tap to pay)
  • QR code payments
  • Bank transfer integrations
Tip
Use this glossary as a quick reference while implementing ePOS SDK features in your application.