Persuasive Technology: Using Computers to Change What We Think and Do (Interactive Technologies) by B.J. Fogg

Author:B.J. Fogg
Language: eng
Format: mobi, pdf
Published: 2008-05-21T05:09:00+00:00

When Credibility Matters in

Human-Computer Interaction

In some cases, it doesn't matter whether or not a computing device is perceived as being credible.13 In many situations, though, credibility does matter; it helps to determine whether or not the technology has the potential to persuade. I propose that there are seven contexts in which credibility is essential in humancomputer interactions.

Credibility Matters When Computers

1. Instruct or advise users

2. Report measurements

3. Provide information and analysis

4. Report on work performed

5. Report about their own state

6. Run simulations

7. Render virtual environments

If a computing technology operating in one of these seven contexts is not perceived as credible, it likely will not be persuasive. Suppose a computer system reports measurements, such as air quality in a "take the bus" initiative or body fat percentage in a weight control system. If the measurements are credible, the system will be more likely to influence. If they are not credible, they're not likely to persuade people to take the bus or motivate them to lose weight.

These seven contexts, discussed below, are not mutually exclusive. A complex computing product, such as an aviation navigation system, may incorporate elements from various categories-presenting information about weather conditions, measuring airspeed, rendering a visual simulation, and reporting the state of the onboard computer system.

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