简介：
Overview
This article describes the protocol for developing the smartphone-based dietary assessment application Traqq, detailing expert evaluations and usability testing.
Key Study Components
Area of Science
- Dietary assessment tools
- Mobile health applications
- Nutritional research
Background
- Development of dietary assessment tools is often inadequately documented.
- Existing tools may not provide comprehensive insights into their development.
- Collaboration among experts is crucial for effective tool development.
- Usability testing is essential for ensuring user-friendliness.
Purpose of Study
- To outline the complete process of developing the Traqq app.
- To provide guidelines for creating comparable dietary assessment tools.
- To share insights on best practices in tool development.
Methods Used
- Literature screening and evaluation of existing tools.
- Prototype building with expert involvement.
- Usability testing with a diverse group of participants.
- Data collection and analysis through participant feedback.
Main Results
- A total of 22 subjects participated in usability evaluations.
- The mean age of participants was 48 years, with a majority being highly educated.
- The app received a mean usability score of 79 out of 100.
- Most participants found the app user-friendly, with only a few rating it below 68.
Conclusions
- Traqq represents a significant advancement in dietary assessment tools.
- The protocol shared can guide future researchers in similar projects.
- Continuous expert involvement is vital for successful tool development.
What is Traqq?
Traqq is a smartphone-based dietary assessment application designed to help users track their food intake.
How was the usability of Traqq evaluated?
Usability was evaluated through think-aloud interviews with 22 participants, assessing their experience using the app.
What age group participated in the study?
Participants ranged from 22 to 70 years old, with a mean age of 48 years.
What was the mean usability score for Traqq?
The mean usability score was 79 out of 100, indicating a generally positive user experience.
Who should be involved in the development of dietary assessment tools?
Involvement of nutrition researchers, dieticians, and IT personnel is crucial for effective development.
What are the key steps in developing Traqq?
Key steps include literature review, prototype building, expert evaluation, and usability testing.
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