This document introduces and describes the concept of the application programming interface (API) to security devices with the intention to simplify the usage of commands and mechanisms defined by the ISO/IEC 7816 series.

This document gives guidelines on:

—？the system overview and description of the system of the programming interface;

—？the architecture description;

—？the data model in general, used by the API;

—？the use cases and the usage model of the API.