Table 1.

Summary of the strengths and weaknesses of each category.

Category	Pros	Cons
Generalization-explicitness	Well-proven effectiveness Broad applicability	It cannot be tailored based on individuals’ situations and preferences The effectiveness of the intervention cannot be maintained in the long term
Personalization-explicitness	Increase implicit belief Focus on background activities	It cannot be adjusted based on individual situations
Generalization-implicitness	Initiative Reflection	It ignores the potential impact from subtle cues that users may not be consciously perceive Inaccurate data The effectiveness of intervention cannot be maintained in the long term
Personalization-implicitness	Unawareness Context detection	Not all health-enhancing behaviors are easily captured Hard to define and identify cues in daily life The effectiveness is questioned Ethic issues