在当前网站易用性研究成果基础上,分析网站易用性定量测度中存在的问题;针对网站易用性直接定量测度难题,阐述信息距离基本理论厦测度方法,以此为基础首次建立直接定量测度模型,即网站易用性信息距离测度模型;最后对两个应用实例进行测算。本文为网站易用性直接定量测度研究提供全新的思路与方法。
Through reviewing the research of Website's Ease of Use (WEU), the paper analyzes and points out the problem existed in quantitative measurement of WEU. To solve the direct quantitative measurement problem, the paper introduces the theory of Distance of Information - State Transition (DIT), and build a direct quantitative measurement model of WEU. Finally the paper uses this model to calculate the DIT of two examples. This paper presents a new study approach of direct quantitative measurement of WEU.