Just as a film is composed of a series of individual frames and shots which need to be joined together to tell a complete story, cards in a stack need to be tied together in such a way that the user of your program finds a smooth transition from one card and idea to the next. HyperStudio provides you with a nice range of transition options. Fades and wipes should consistently fade or wipe from the same direction to maintain a flow.
Slow transitions give time to think but sometimes slow the user down.
Transitions create and maintain mood. Transitions shouldn't draw undue attention to themselves. Remember, these are general rules, and as most will tell you . . . It button to see the effects. When you have one which is satisfactory, click OK .