本文件规定: -用于表示虹膜图像数据的通用可扩展数据交换格式:基于ASN中可扩展规范的标记二进制数据格式。1和基于XML模式定义的文本数据格式，两者都能够保存相同的信息， -数据记录内容示例， -数据采集方面的特定于应用程序的要求、建议和最佳实践，以及 -适用于本文件的一致性测试断言和一致性测试程序。 虹膜图像信息存储为: -可选择使用ISO/IEC 15948或ISO/IEC 15444-1压缩的强度值数组，或 -一组可选地用ISO/IEC 15948或ISO/IEC 15444-1压缩的强度值，可在虹膜周围裁剪，虹膜位于中心，并可结合非虹膜区域的感兴趣区域掩蔽。 本文件还规定了适用于本文件的一致性测试方法、测试断言和测试程序的要素。 它规定: -根据本文件第6、7、8和9条的规定，测试与虹膜图像数据格式结构有关的断言， -通过检查每个字段中可能包含的值类型，测试与内部一致性相关的断言，以及 -语义测试断言。 本文件中规定的一致性测试方法不确定: -生物识别产品的其他特性测试或生物识别产品的其他类型测试（例如验收、性能、稳健性、安全性），或 -不产生符合本文件要求的数据记录的系统的一致性测试。 本文件并未确定: -摄像机光学规格要求，或 -虹膜图像的光度特性要求，或 -注册流程、工作流程和iris设备使用要求。

This document specifies: — generic extensible data interchange formats for the representation of iris image data: a tagged binary data format based on an extensible specification in ASN.1 and a textual data format based on an XML schema definition that are both capable of holding the same information, — examples of data record contents, — application specific requirements, recommendations, and best practices in data acquisition, and — conformance test assertions and conformance test procedures applicable to this document. The iris image information is stored as: — an array of intensity values optionally compressed with ISO/IEC 15948 or ISO/IEC 15444-1, or — an array of intensity values optionally compressed with ISO/IEC 15948 or ISO/IEC 15444-1 that can be cropped around the iris, with the iris at the centre, and which can incorporate region-of-interest masking of non-iris regions. This document also specifies elements of conformance testing methodology, test assertions, and test procedures, as applicable to this document. It establishes: — test assertions pertaining to the structure of the iris image data format, as specified in Clauses 6, 7, 8 and 9 of this document, — test assertions pertaining to internal consistency by checking the types of values that may be contained within each field, and — semantic test assertions. The conformance testing methodology specified in this document does not establish: — tests of other characteristics of biometric products or other types of testing of biometric products (e.g. acceptance, performance, robustness, security), or — tests of conformance of systems that do not produce data records conforming to the requirements of this document. This document does not establish: — requirements on the optical specifications of cameras, or — requirements on photometric properties of iris images, or — requirements on enrolment processes, workflow and use of iris equipment.