ISO/IEC 9541规定了字体资源的体系结构，以及信息处理系统之间字体交换的格式。ISO/IEC 9541还规定了可用于在一般电子文档交换中构造字体引用的体系结构和格式。ISO/IEC 9541-3:20 12规定了字形形状表示的架构和交换格式。使用ISO/IEC 9541-1和ISO/IEC 9541-2中定义的架构和交换格式表示的字体资源用于各种文档处理环境中，其中RELAX NG(ISO/IEC 19757-2)解析算法被识别。ISO/IEC 9541-3:20 12中定义的字体资源信息的编码在松弛表示中被指定，用于一致地生成用于这些处理环境中使用的字体资源。

ISO/IEC 9541 specifies the architecture of font resources, as well as the formats for font interchange among information processing systems. ISO/IEC 9541 also specifies the architecture and formats that can be used to construct font references in general electronic document interchange.

ISO/IEC 9541-3:2012 specifies the architecture and interchange formats of glyph shape representations.

Font resources represented using the architecture and interchange formats defined in ISO/IEC 9541-1 and ISO/IEC 9541-2 are used in various document processing environments in which the RELAX NG (ISO/IEC 19757-2) parsing algorithm is recognized. The encoding of font resource information as defined in ISO/IEC 9541-3:2012 is specified in RELAX NG representation for consistent generation of font resources for use in these processing environments.