The number of HCI papers on care has grown rapidly in recent years. Despite growing interest in care both as an application domain for technology and as an ethical stance in research and design, our integrated understanding of the concept is limited. It remains unclear how various application areas of care relate to one another, to what extent their underlying assumptions align or contradict, and how they collectively shape HCI discourse on care. To address this, we present a meta-narrative review of 317 SIGCHI papers on care. We first outline the landscape of care in HCI. We then present six paradigmatic framings of care, and a conceptual map that positions these framings in relation to each other, their representative care–tech relations, and the temporal development of the field. We conclude by discussing the implications from the review, as well as gaps in the field and future directions.

Older adults are increasingly invited into speculative activities within HCI, yet little is known about how researchers facilitate these processes or how this population engages in shaping alternative presents and socio-technical futures. While speculative design methods often aim to support non-designers to contribute to design processes, engaging older adults poses unique challenges that complicate their involvement. To build a comprehensive understanding, we conducted a scoping review of 44 prior studies on speculative design involving older adults, focusing on the research objectives and methodological rationales, facilitation, and how older adults engage in speculation. Through this analysis, we identify persistent methodological tensions, opportunities to advance more inclusive speculative practices with aging populations, and suggest implications for future practice.

As individuals enter their later years, they often reminisce about their past, which can significantly enhance their well-being. Current research on technology-mediated reminiscence in HCI tends to position older adults as passive subjects in reminiscence activities, with limited focus on their role as active narrators. In this study, we would to explore the potential of Generative AI, specifically through "generative dialogue" and "text-to-image" technologies, as a "listener" for older adults’ reminiscing storytelling. We conducted an experiment with seven older adults using ChatGPT to generate questions to elicit detailed narratives, and the stories were used to create corresponding images. We propose systematic influential factors and corresponding design guidelines tailored to the storytelling behaviors of older adults.

Protection against failure in high bandwidth optical networks can prevent significant potential losses of data but at the same time it requires a considerable fraction of the network resources to be reserved for it. Moreover, in optical networks suffering from physical layer impairments, inefficient use of network resources leads to significant increase in the blocking probability and higher vulnerability due to degradation of the QoT (quality of transmission) in the network. These trade offs call for the need to consider the physical layer impairments in designing higher layer protection schemes, i.e., a QoT-aware or cross-layer design. In this paper, we look at the performance of several link protection and link and path restoration algorithms in all-optical networks with realistic physical layer impairments, and propose a new cross-layer restoration method that exhibits both low blocking probability and low vulnerability ratio.

There has been a significant amount of recent research on routing and wavelength assignment for DWDM networks suffering from physical layer transmission impairments. These algorithms attempt to increase the quality of transmission or service and are called QoT (quality of transmission) or QoS aware algorithms. However, protection has not been considered in this context so far, as far as we are aware. In this paper, we investigate the effect of physical layer impairments on dedicated path protection schemes. In dedicated path protection, every connection has resources reserved and dedicated on both a primary and a backup lightpath. While there is no difference in network performance whether the backup path is lit or kept dark in networks that are not transmission-impaired, lighting the backup path has an adverse effect on the network in transmission-impaired networks. By considering two different RWA algorithms - a QoT-aware one and a QoT-unaware one, we study the blocking performance and the vulnerability of the connections to failures for the two cases - dark backup and lit backup. Our results show that there are significant penalties in backup lit case, and that the QoT-aware algorithm considerably outperforms the QoT-unaware algorithm in terms of both blocking and vulnerability to failures.