Primary Classification:
  H. Information Systems
  H.5 INFORMATION INTERFACES AND PRESENTATION (I.7)
      H.5.2 User Interfaces (D.2.2, H.1.2, I.3.6)
          Subjects: Theory and methods

Additional Classification:
  H. Information Systems
  H.5 INFORMATION INTERFACES AND PRESENTATION (I.7)
      H.5.1 Multimedia Information Systems
          Subjects: Hypertext navigation and maps**
      H.5.2 User Interfaces (D.2.2, H.1.2, I.3.6)
          Subjects: Screen design (e.g., text, graphics, color)

  I. Computing Methodologies
  I.7 DOCUMENT AND TEXT PROCESSING

General Terms:
Design, Theory