In this paper we discuss the dynamics of user experience in short interaction sequences (SIS). By splitting up complex tasks into several smaller sub steps -and therefore transforming it into a SIS -it allows identifying and measuring dynamic changes of specific UX factors throughout the task. This enables generating a more detailed view than by common approaches like pre and post task evaluation. Through a study we examined the factors pleasantness and arousal on the basis of a generic online shopping process. For validation, two different methods (Emocards, Sensual Evaluation Instrument) were used for measurement. Results show different dynamics of UX for each of the evaluated sub steps and we therefore conclude that singular UX measurement (at one point of time) or pre and post task evaluation is not sufficient for getting a full picture of UX. Author Keywordsdynamic user experience, short interaction sequence, emocards, sensual evaluation instrument ACM Classification Keywords H5.m. Information interfaces and presentation (e.g., HCI): Miscellaneous.
This study contributes to the discussion on video telephony for inter-generational family communication. We present an evaluation of 11 alternative interaction options next to the standard options "accept" or "decline" for video telephony in 10 family scenarios with 20 grandchildren and 20 grandparents. Results highlight a differentiated view of the two generations on family situations for inter-generational video communication. Grandparents are more likely to use video telephony in different situations than grandchildren. Further, family scenarios provoked different interactions by the two generations. Overall, we suggest alternative interaction options for inter-generational family communication enabling users to immediate react to incoming video calls to the current situation, goal, activity, context and self-disclosure needs.
Aging people are in risk of social isolation due to direct or indirect effects of aging. Social isolation decreases the quality of life, health and acts against independent living, which is important for both the elderly people and society. Social networking can provide elders a sense of presence with their relatives, friends and healthcare personnel which counteract the effects aging causes to their social connections. In this research a special social networking system is designed and provided for the elderly to answer their communication needs. To collect information on the achieved benefits of the system, a selected group of elders will use the system in their everyday lives in field trials for several months.
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