1. 系统状态可见 Visibility of system status
  2. 系统与现实世界的匹配 Math between system and real world
  3. 用户可控性/用户自由 User control and freedom
  4. 统一和标准 Consistency and standards
  5. 防错性 Error prevention
  6. 识别胜于回忆 Recognition rather than recall
  7. 使用起来灵活高效 Flexibility and efficiency of use
  8. 美观简洁 Aesthetic and minimalist design
  9. 帮助用户识别、诊断和从错误中恢复 Recognition, diagnosis and recovery from error
  10. 帮助和文档 Help and documentation