信息技术.文件描述和处理语言.办公开放式XML文件格式.第4部分:过渡迁移特性

[中文适用范围]： ISO/IEC 29500 定义了一组用于表示文字处理文档、电子表格和演示文稿的 XML 词汇。一方面，ISO/IEC 29500 的目标是真实地表示由 Microsoft Office 应用程序（从 Microsoft Office 97 到 Microsoft Office 2008，包含）生成的现有字处理文档、电子表格和演示文稿的语料库。它还规定了 Office Open XML 消费者和生产者的要求。另一方面，其目标是促进可扩展性和互操作性，通过实现由多个供应商在多个平台上的实现。本部分 ISO/IEC 29500 定义了向后兼容的特性，这些特性对于将现有二进制文档高质量地迁移到 ISO/IEC 29500 非常有用。这些特性仅由符合性类为 WML Transitional（§2.1）、SML Transitional（§2.1）或 PML Transitional（§2.1）的文档使用。这些特性有时对于将现有二进制文档高质量地迁移到 ISO/IEC 29500 是必需的。 [外文原描述]： ISO/IEC 29500-4:2016 defines a set of XML vocabularies for representing word-processing documents, spreadsheets and presentations. On the one hand, the goal of ISO/IEC 29500 is to represent faithfully the existing corpus of word-processing documents, spreadsheets and presentations that have been produced by Microsoft Office applications (from Microsoft Office 97 to Microsoft Office 2008, inclusive). It also specifies requirements for Office Open XML consumers and producers. On the other hand, the goal is to facilitate extensibility and interoperability by enabling implementations by multiple vendors and on multiple platforms. ISO/IEC 29500-4:2016 defines features for backward-compatibility and that are useful for high-quality migration of existing binary documents to ISO/IEC 29500. These features are used only by documents of conformance class WML Transitional (§2.1), SML Transitional (§2.1), or PML Transitional (§2.1). These features are sometimes needed for high-quality migration of existing binary documents to ISO/IEC 29500.