Well-being, aging, and health (WBAH) are important aspects of life that affect us all. Requirements for WBAH systems have also become a topic of common interest for researchers from different disciplines. This is unsurprising given that health-related expenses often represent about 10% of a country's Gross Domestic Product (GDP), according to the World Health Organization [1]. At the same time, there is a growing number of software practitioners working on various technology-enabled solutions for WBAH systems. For example, software systems provide personalized and tailored behavioral change programs for decreasing health risk factors. Yet, many systems and services that promote health or well-being fail, in part due to requirements engineering (RE) issues.

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