PPTs may contain a number of slides, but all of them jointly project a unified core message. They may bear different textual, visual or graphical contents, but the crux of the whole presentation is always integrated. So the slide-switch or navigation becomes an ability of paramount importance. Your audiences are fixed on one idea and after finishing with it, you have to move them to another one on the next slide.
1. Vary time for each slide as per audiences’ interest-level: You have to gauge your audiences’ interest-level all through the presentation. In fact, their level of interest may vary on every slide. The navigator must have this acute acumen to judge the interest-level and then accordingly, stay on the same slide or switch to the next one. The length of the elongated stay may be of few seconds, but those few seconds matter much to garner their required engagement in leading them to make a Call-of-Action for your products or services. Your designer must have put great effort in designing a specific slide, but the audiences may show a bigger interest for a different one. The navigator has to keep a regular watch.
2. Showy designing in slide-transitions may divert audiences’ attention: Slide-switch can be done in different ways and styles like animation-based fade-outs, cuts, dissolves and wipes. Heavy and intricate designing at slide-transitions may baffle your audiences or at least divert their attention from the real thing. These styles must be used cautiously and carefully. Even audio-transitions should be avoided. The bottom-line is not to overlap the real content or message by conspicuously overwhelming slide-transitions.
3. Uniformity in style: Uniformity of the style and design on different slides with that of a slide-switch is advisable always. If the design in a slide-switch doesn’t match with the designing of the entire presentation, then that becomes apparently different and audiences are more likely to remember the slide-switch-style instead of its real substance. Slide-switch must signify the linking between slides, not the beginning and closing of slides.
Summarily, slide-switch or navigation must strengthen and uplift your PPT so that audiences take its real essence in their hearts and minds, not the flamboyant slide-switch-designing.