易用性评估
usability evaluation
中文定义
通过收集系统的易用性信息来改进系统（称为形成性评估），或评估 系统的优点或价值（称为总结性评估）的过程。
English Definition
A process through which information about the usability of a system is gathered in order to improve the system (known as formative evaluation) or to assess the merit or worth of a system (known as summative evaluation).