Table 2.

Summary of reliability system design strategies used by participants to enhance self-care reminders.

Reliability Strategy	Benefits	Drawbacks
Redundancy: Repeated reminders, back-up systems	• Back-ups ensure availability of reminder for retrieval at the right time. • Repeated alerts enhance retention.	• Too many back-up systems can create unwanted noise and increase chance of being ignored.
Diversity:Independent systems, different communication modes	• Separate clinic and personal systems reduces reliance on single operator. • Multiple modalities improves availability of reminder for retrieval.	• Additional systems increase complexity and can create new opportunities for failure.
Monitoring: Validating reminder capture, double-checking for errors	• Improves retention through repeated exposure. • Increases likelihood of catching errors in the reminder system.	• Additional work required of system operators • Challenges with maintaining this behavior routinely.