Human Factors (HF); Web-based Guideline and Tutorial System for Real-time Communication Services; QoE (Quality of Experience) expressed in QoS (Quality of Service) terms; Supporting and maintenance information
人为因素(HF);基于Web的实时通信服务指南和教程系统;QoE(体验质量)用QoS(服务质量)术语表示;支持和维护信息