A Fundamental Study on Information and Communication Control Techniques for Physically Disabled Subjects

本研究以肢体残疾被试为研究对象，对其可用性的影响因素进行了评价。对这些因素进行统计检验，并与正常被试进行比较。最后，对实验结果进行整理，并提出改善残障人士电脑使用环境的指导方针。同时，为了开发便于残障主体使用的数据库管理系统，分析了不可靠文件系统的最优检查点策略。此外，我们提出了在测试阶段评估软件产品的新技术。结果表明，这些结果对许多身体残疾的人是有用的。

In this study, we focused on the pointing operation by physically disabled subjects and evaluated the factors affecting their usabilities. The factors were statistically examined and compared with those by abled subjects. Finally, we arranged results obtained in the experiment and proposed guidelines to improve the access circumstance to computers for physically disabled persons.Also, in order to develop the database management system, which is easy to use for physically disabled subjects, we analyzied some optimal checkpoint strategies for unreliable file systems. Moreover, we proposed new techniques to assess software products in testing phase. It was shown that those results are useful for many physically disabled persons.