> For the complete documentation index, see [llms.txt](https://docs.verifone.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.verifone.com/psdk-latest/psdk-user-guide-and-training/psdk-user-guide.md).

# PSDK user Guide

***

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**Version:**\
**Date:**
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## Intended Audience <a href="#intended-audience" id="intended-audience"></a>

This documentation is designed to serve as reference material. It is a step-by-step training manual to learn how the Verifone PSDK features and functionalities can be incorporated into your payment solutions.

However,

* If you’re already a Verifone PSDK user and need technical help, we recommend talking to the [Verifone technical support team](https://verifone.cloud/need-help).
* If you’re searching for Verifone and its product lines, follow the resources available at <https://www.verifone.com/>.

## Prerequisites <a href="#prerequisites" id="prerequisites"></a>

We expect the users to have prior knowledge of the following, before starting the integration for a better development experience:

* POS
* POI
* Payment App
* Host/Payment host
* Session
* Order
* Transaction

## Glossary <a href="#purpose" id="purpose"></a>

| Term  | Description                                    |
| ----- | ---------------------------------------------- |
| AID   | Application Identifier                         |
| AGPA  | Android Global Payment Application             |
| API   | Application Program Interface                  |
| APP   | Application                                    |
| BLE   | Bluetooth Low Energy                           |
| BT    | Bluetooth                                      |
| BYOD  | Bring Your Own Device                          |
| CDCVM | Consumer Device Cardholder Verification Method |
| CM5   | Carbon Mobile 5                                |
| CML8  | Carbon Multi-Lane 8 (aka Mag Mile)             |
| CP    | Commerce Platform                              |
| ECR   | External/Electronic Cash Register              |
| EMV   | EuroPay/MasterCard/VISA                        |
| GPA   | Glogal Payment Application (engage)            |
| HTML  | Hypertext Markup Language                      |
| ICC   | Integrated Circuit Card                        |
| LAN   | Local Area Network                             |
| MSR   | Magnetic Stripe Reader                         |
| PAN   | Primary Account Number                         |
| PCI   | Payment Card Industry                          |
| PIN   | Personal Identification Number                 |
| POS   | Point Of Sale                                  |
| PP    | Payment Processor                              |
| PSDK  | Payment SDK                                    |
| QPS   | Quick Payment Service                          |
| RID   | Registered Application Provider Identifier     |
| RRN   | Reference Retrieval Number                     |
| SAF   | Store And Forward                              |
| SCA   | North America Engage Payment Application       |
| SDI   | Secure Data Interface                          |
| SDK   | Software Development Kit                       |
| STAN  | System Trace Audit Number                      |
| TAC   | Terminal Action Code                           |
| TMS   | Terminal Management System                     |
| WEP   | Wired Equivalent Privacy                       |
| WLAN  | Wireless Local Area Network                    |
| WPA   | WiFi Protected Access                          |
| WPA2  | WiFi Protected Access II                       |
| WWAN  | Wireless Wide Area Network                     |
| VAS   | Value Added Services                           |
| VHQ   | Verifone HQ (Headquarters)                     |


---

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