ISO/IEC 24756:2009 信息技术 指定用户、系统及其环境需求和性能的通用访问规范框架

标准编号：ISO/IEC 24756:2009

中文名称：信息技术 指定用户、系统及其环境需求和性能的通用访问规范框架

英文名称：Information technology — Framework for specifying a common access profile (CAP) of needs and capabilities of users, systems, and their environments

发布日期：2009-04

标准范围

ISO/IEC 24756:2009定义了一个框架，用于指定用户、计算系统及其环境的需求和能力的公共访问配置文件（CAP），包括由辅助技术支持的访问。它为跨多个平台以标准化的方式识别和处理可访问性问题提供了基础。它可用于评估现有系统在特定环境中对特定用户的可访问性。各种环境中的各种系统的用户可能会经历暂时或永久的可访问性困难。系统的潜在用户需要评估他们在预期的使用环境中是否可以访问这些系统。如果由于环境障碍或糟糕的设计，无障碍性可能不足，这些用户可能希望求助于辅助技术(AT)来提供所需的无障碍水平。目前，没有描述可访问性需求或能力的通用框架。这就要求每个潜在用户开发自己的评估方法，然后利用这种方法对各种系统和ATs进行调查和评估。然而，由于缺乏现有的方法，也可能缺乏关于不同系统和ATs能力的适当信息，导致效率低下、混乱、沮丧和用户普遍缺乏满意度。ISO/IEC 24756:2009引入了一个可访问性模型，作为理解各种环境中用户和系统之间交互的可访问性问题的基础。它进一步描述了用于限定和组合它们的逻辑运算符。然后，它指定应用上限的方法。

ISO/IEC 24756:2009 defines a framework for specifying a common access profile (CAP) of needs and capabilities of users, computing systems, and their environments, including access supported by assistive technologies. It provides a basis for identifying and dealing with accessibility issues in a standardized manner across multiple platforms. It can be used to evaluate the accessibility of existing systems in particular environments for particular users.

Users of various systems in various environments can experience temporary or permanent accessibility difficulties. Potential users of systems need to evaluate whether the systems will be accessible to them in the intended environments in which they will be used. Where accessibility can be insufficient, either due to environmental barriers or poor design, these users can wish to resort to assistive technologies (ATs) to provide the required level of accessibility. Currently, there is no common framework for describing accessibility needs or abilities. This requires each potential user to develop their own evaluation method, and then to investigate and evaluate various systems and ATs using this method. However, due to the lack of an existing method, there might also be a lack of suitable information on the abilities of different systems and ATs, leading to inefficiency, confusion, frustration and a general lack of satisfaction by the user.

ISO/IEC 24756:2009 introduces a model of accessibility as a basis for understanding access issues with the interactions between users and systems in various environments. It further describes logical operators used along CAPs to qualify and combine them. It then specifies methods to apply a CAP.

标准预览图