Stages in Innovation-Decision Process

Rogers' Stages of Innovation Decision Process	Porchaska's Stages of Change
Knowledge Stage Recall of information Comprehension of messages Knowledge or skill for effective adoption of innovation	Precontemplation
Persuasion Stage Liking Discussion of new behavior with others Acceptance of the message Formation of positive image of the message and innovation Support for the innovative behavior from the system	Contemplation
Decision Stage Intention to seek additional information about the innovation Intention to try innovation	Preparation
Implementation Acquisition of additional info about innovation Use of innovation on regular basis Continued use of innovation	Action
Confirmation Stage Recognition of the benefits of using the innovation. Integration of the innovation into ongoing routine Promotion of innovation to others	Maintenance

Adapted from Everett Rogers, Diffusion of Innovations, 4^th ed. (New York: Freepress), 1995, p. 190.