Based on case studies from a heritage/museum context, I present and illustrate the notion of "spatiocontextual embedding," which conceptualizes installation designs that augment real objects and environments while keeping these primary focuses of attention. Key for this "embeddedness" is that interaction is contextualized within a meaningful setting, creating relationships between system and environment. While retaining a focus on original objects or environments, it supports user's active engagement and sense making by inviting, enticing, or forcing them to draw connections. At the heart of this is "indexing": mindful acts of referencing back-and-forth between here and there, connecting objects or representations. Analysis of case studies provides a repertoire of examples of "indexing," and examples for high-and low-tech installation designs that foster drawing of connections.Two core values for design underpin the argument: (1) primacy of real objects and environments and (2) supporting human agency. The case examples highlight how technological arrangements may support or hinder indexing activity. This is condensed into potential design strategies. This article contributes to design knowledge on design for human agency, sense making, and mindful engagement with our environment. "Indexing" is relevant beyond the heritage setting domain, as part of HCI design in support of human agency.
CCS Concepts: r Human-centered computing → HCI theory, concepts and models; Empirical studies in interaction design; Ubiquitous computingAdditional Key Words and Phrases: Embedded interactions, embodiment, situated interaction, indexing, museum installations, interaction design strategy, augmented environments, engaging user experience ACM Reference Format: Eva Hornecker. 2016. The To-and-Fro of sense making: Supporting users' active indexing in museums. ACM