This CHI ' 98 paper defines persuasive technology and provides direction for further research. This article discusses how perceived credibility affects a user's experience and how designers can increase perceived credibility. BJ Fogg defines captology and introduces a series of articles on persuasive technology featured in Communications of the ACM .
Credibility is important to consider in certain technology domains.
Computing systems can gain or lose credibility based on their interactions with the user. Software interfaces can be seductive by enticing the user, appealing to emotion, going beyond obvious expectations, and fulfilling promises. Designing technologies with the intent to persuade has ethical consequences.