| A | B |
| Optical center | a point slightly above and to the center of the mathematical center of the screen |
| Optical weight | the ability of an element such as a graphic, text, headline, or subheading to attract the user's eye |
| Rollover | function performed as the mouse pointer rolls over and points to an object |
| Sequential navigational scheme | takes the user through a controlled, linear process |
| Symmetrical balance | distribution achieved by arranging elements as horizontal or vertical mirrored images on both sides of an imaginary center line |
| Treatment | how a presentation will be offered to the user |
| Authoring Programs | programs used to create multimedia presentations |
| Adobe Director | authoring program that uses a movie metaphor with the user as the "director" of the movie |
| Adobe Flash | an animation program for developing 2-D animations delivered on the Web |
| Players | programs that allow users to run multimedia applications on their computers |
| Programming languages | languages used to create applications such as creating animations and searching databases |
| Script | program code for a specific task such as a rollover |
| Scripting Languages | programming languages used to create scripts |
| Shockwave | program that allows an Internet user to play applications created with Macromedia Director |
| Toolbook | a multimedia authoring software program |