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Improving Acceptability of Energy Efficiency Recommender Systems Through HCI Design

Authors:
Hayet Hammami
Yacine Ghamri-Doudane

Keywords: HCI design; Recommender Systems; Energy Efficiency; Workplace Environments; User Centered Design; User Acceptability.

Abstract:
Energy efficiency recommender systems are increasingly introduced in workplace environments, yet their adoption remains challenging due to acceptability issues, such as lack of trust, intrusiveness, and limited user control. While Human-Computer Interaction (HCI) design principles for recommender systems are well established, their application in shared professional contexts remains underexplored. This paper reports an empirical investigation through two successive studies: (1) an exploratory co-design workshop with corporate employees, and (2) a two-phase evaluation in a university setting, including an acceptability study using medium-fidelity and video prototypes followed by a hands-on evaluation of a functional mobile application (SmartLR). Across these studies, we examine how HCI design elements, such as notification strategies, transparency mechanisms, and personalization features, shape user trust, perceived control, and short-term acceptability in professional settings. The results highlight recurring design trade-offs related to notification intrusiveness, automation, transparency, and cognitive load. Based on these findings, we propose five practical HCI design guidelines for energy-efficiency recommender systems in workplace environments.

Pages: 109 to 119

Copyright: Copyright (c) IARIA, 2026

Publication date: May 24, 2026

Published in: conference

ISSN: 2308-4138

ISBN: 978-1-68558-383-5

Location: Venice, Italy

Dates: from May 24, 2026 to May 28, 2026