Stakeholders' Perspectives on Partnering to Inform the Software Development Lifecycle of Smartphone Applications for People with Serious Mental Illness: Enhancing the Software Development Lifecycle Through Stakeholder Engagement.

Serious mental illness (SMI) is a leading disability worldwide. Partnering with people with SMI to co-produce smartphone apps to support mental health outcomes throughout the software development lifecycle may support patient engagement with smartphone health app interventions. Partnering with this community is often challenging and requires a highly specialized community engagement training and skillset. The purpose of this study was to identify stakeholders' perspectives on partnering to inform the software development lifecycle of a smartphone health app intervention for people with SMI. We conducted thirty-five semi-structured qualitative interviews with 20 mental health patients and 15 peer support specialists. We identified six themes: (1) co-produce health app intervention content; (2) selection of app technology features; (3) integration of human factors in digital health apps; (4) consideration of personalized patient preferences in digital health apps; (5) identify unrecognized concerns early in the software development lifecycle; and (6) inclusion of real-world social, cognitive, and environmental contexts. Integration of these considerations may elucidate the partnering process to facilitate engagement among vulnerable populations that commonly disengage from mental health smartphone apps use such as people with SMI.