Primary Classification:
  K. Computing Milieux
  K.3 COMPUTERS AND EDUCATION

Additional Classification:
  H. Information Systems
  H.4 INFORMATION SYSTEMS APPLICATIONS
      H.4.1 Office Automation
          Subjects: Word processing
      H.4.3 Communications Applications
          Subjects: Computer conferencing, teleconferencing, and videoconferencing
  H.5 INFORMATION INTERFACES AND PRESENTATION (I.7)
      H.5.2 User Interfaces (D.2.2, H.1.2, I.3.6)
          Subjects: Training, help, and documentation

General Terms:
Human Factors