Appendix Three: Glossary of Hypertext Terminology (Larson, 1988) ASCII (PC-Hypertext): Nodes are compatible with other programs. Network is useful in printed format since links are text based and can be manually followed in hard copy. Efficient in disk usage. Runs fast on the base of installed machines (8088 to 386 CPUs). Button-dominated: Text jumps (embedded buttons) work for 1-5 branches on a screen. If poorly done, buttons can disrupt the continuity of the information on the screen. Network associations cannot be printed since link information is hidden in program code. (limitation) Circular (wandering): If built primarily using a word processor or one screen at a time, the linkages between files are poorly classified. The better approach is to separate information creation from information categorization and linking. (limitation) Hacker (spaghetti): Convoluted linkages fail to communicate the language and structure (taxonomy) of a knowledge area. (limitation) Non-hierarchical: User cannot comprehend the relationships, location, or structure of information in the system. (limitation) Structured: User can comprehend associative relationships between information nodes, and hence, the consequences of navigational paths existing in the system. (attribute) Pictorial: Emphasis on graphics as a significant component of the information base, including the use of a graphical user interface. The system construction time can be lengthy and the storage requirements for system graphics can be extensive. (limitation) Pirate Hypertext: Uses copyrighted material (pictures and text) without the permission of the creators or copyright holders. As a consequence of the unresolved legal clouds that surround the development of global information networks, most information bases that utilize a hypertext structure will initially contain material that is in the public domain, such as federal, state, and local information, laws, rulings, and specification standards or guidelines. (limitation) Star Hypertext: The linking of ASCII files that contain references to the same subject material to the most important file of the group. In that file, footnote links are added to connect it to all of the other files. This "star" hypertext linking is both easier and faster to build and use than the cross referencing of all individual files. (attribute) Index to the Appendices Expert Systems and Hypertext