& , TaskHerder: A wearable minimal interaction interface for mobile and long-lived task execution, in José Ignacio Panach, Jean Vanderdonckt, & Oscar Pastor (eds.), Proceedings of the ACM SIGCHI Symposium on Engineering Interactive Computing Systems, EICS 2019, Valencia, Spain, June 18-21, 2019,4:1-4:5 (ACM ). DOI  PDF


Notifications have become a core component of the smart-phone as our ubiquitous companion. Many of these only require minimal interaction, for which the smartwatch is a helpful companion device. However, its design and placement is influenced by its traditional ancestors. For applications where the user is constrained because of a specific usage situation, or performs tasks with both hands simultaneously, interaction with the smartwatch can be cumbersome. In this paper, we propose a wearable armstrap for minimal interaction in long-lived tasks. Placed around the elbow, it is outside the hands' proximal working space which reduces interference. Its flexible e-ink display provides screen space to provide overview information at minimal energy consumption for longer uptime. We designed the wearable for a professional use-case, meaning that is can easily be placed above protective clothing as its flexible round shape easily adjusts to various diameters. Capacitive touch sensing allows gesture input even under rough conditions, e.g., with gloves.

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