可用性指南1.9：设立可用性目标

设计过程与结果评估

1.9  设立可用性目标

相关重要指数：3级

证据强度：3级

文件类型：指南

主题：

UCD流程需求

指南：

设立的业绩目标应包括：成功率、用户找到具体信息所花费的时间。或者倾向于用户满意度、接受度的目标。

注释：

设立用户性能和/或偏好目标可以帮助开发者建立更好的网站，也能使可用性测试更加有效。例如：一些企业内部网站会设立一个目标：网站上80%的内容能在不到一分钟的是里被找到。

资源：

1. Baca, B. & Cassidy, A. (1999). Intranet development and design that works. Human Factors and Ergonomics Society Annual Meeting Proceedings, 777-790.

2. Bradley, R.F. & Johnk, L.D. (1995). Replacing a networking interface ‘from hell.’ Proceedings of CHI’95, 538-545.

3. Grose, E., Jean-Pierre, S., Miller, D., & Goff, R. (1999). Applying usability methods to a large intranet site. Human Factors and Ergonomics Society Annual Meeting Proceedings, 762-766.

4. Sears, A., Jacko, J., & Borella, M. (1997). Internet delay effects: How users perceive quality, organization and ease of use information. Proceedings of CHI’97, 353-354.

相关资源：

1. Title: With Measurable Usability Goals – We All Score。Description: Setting measurable usability goals will help your team to assess the performance of your site throughout development.

2. Title: Usability Goals Articles。Description: Collection of articles about setting usability goals.

3. Title: Measurable Usability Goals Template。Description: This document the possible layout and examples for documenting Measurable Usability Goals.

相关可用性指南：

1. Usability Guideline: Establish User Requirements

2. Usability Guideline: Involve Users in Establishing User Requirements