ISO/IEC 24727规定了一组编程接口和协议，使得集成电路卡（ICC）和驻留在各种计算机平台上的应用之间能够进行交互。ICC为应用程序的多部门使用提供通用服务。ICC的组织和运行符合ISO/IEC 7816 4。预计一些应用领域将寻求通过ISO/IEC 24727设施实现互操作性，即使这些应用预先存在于这些设施中。为此，通过ISO/IEC 24727中规定的机制建立各种向后兼容性手段。 ISO/IEC 24727-1:20 14规定 系统架构和运行原理， 用于在不同应用域之间实现互操作性的装置， 跨越相关应用领域的概念服务和数据模型，以及 在这些模型下启用可信流程的基本原理。

ISO/IEC 24727 specifies a set of programming interfaces and protocols enabling interactions between integrated circuit cards (ICCs) and applications resident on a variety of computer platforms. The ICCs provide generic services for multi-sector use by the applications. The organization and the operation of the ICCs conform to ISO/IEC 7816 4. It is anticipated that some application domains will seek to achieve interoperability through ISO/IEC 24727 facilities even though the applications pre-exist these facilities. To this end, various means of backward compatibility are established through mechanisms specified in ISO/IEC 24727. ISO/IEC 24727-1:2014 specifies

• system architecture and principles of operation,
• the means for achieving interoperability among diverse application domains,
• the conceptual service and data models that span the relevant application domains, and
• the rationale for trusted processes enabled under these models.