Table 1.

Summary of the 4 stages of web application development and testing.

Stage		Goal	Users	Methods
Initial development		Final storyboard and specifications to guide prototype programming	N/Aa	Discussions between investigators, iterative storyboard generation, and feedback
Content feedback		Selection of profile images, formats, and messages in response to end users’ input	A total of 10 women in midlife, with ≥1 CVDb risk conditions	In total, 5 qualitative interviews and 5 survey responses
Internal testing
	Round 1	Identification of bugs or other problems to address with respect to web application functioning	A total of 9 behavioral science trainees (clinical psychology and health behavior) who were familiar with the web application	Totally, 9 sets of positive and negative testing
	Round 2	Identification of bugs or other problems to address with respect to full data collection procedure	A total of 3 behavioral science trainees (clinical psychology) who were not familiar with the web application	In total, 3 in vivo tests, each over 3 days (morning web application use, pedometer wear, and end-of-day survey)
Naturalistic functionality testing		Identification of bugs or other problems to address with respect to full data collection procedure and obtaining end-user feedback	A total of 5 women in midlife, with ≥1 CVD risk conditions	In total, 5 in vivo tests, each over 4 days (morning web application use, pedometer wear, and end-of-day survey)

^aN/A: not applicable.

^bCVD: cardiovascular disease.