This study explored the culture and gender differences among older adults interacting with polite non-humanoid robots. We have used Lakoff theory for the polite conversational maxims. A within-subjects experiment was designed with polite and non-polite, correct and erroneous behaving robots. The polite robot employs three sub-rules ("don’t impose," "give options," and "be friendly"). A user study was conducted with older adults from two cultural backgrounds: Israeli Jewish and Arab participants. The study revealed that the participants could not differentiate between the polite behaviors when the robot was correct. They were more annoyed with a polite robot making an error as compared to a non-polite erroneous robot. Whereas gender had no impact on participants’ evaluations, there were significant cultural differences between the groups: Although the Arab participants were primarily more skeptical, they enjoyed, were satisfied, and trusted the robot more than the Jewish participants. In addition, they preferred the direct non-polite behavior, whereas the Jewish participants liked the polite behavior more.

In simple terms, interpersonal motor synchronization (IMS) means people moving together at the same time. This type of time-based interaction and coordination is prevalent in a multitude of daily s...

Temporal knowledge discovery in clinical problems, is crucial to investigate problems in the data science era. Meaningful progress has been made computationally in the discovery of frequent temporal patterns, which may store potentially meaningful knowledge. However, for temporal knowledge discovery and acquisition, effective visualization is essential and still stores much room for contributions. While visualization of frequent temporal patterns was relatively under researched, it stores meaningful opportunities in facilitating usable ways to assist domain experts, or researchers, in exploring and acquiring temporal knowledge. In this paper, a novel approach for the visualization of an enumeration tree of frequent temporal patterns is introduced for, whether mined from a single population, or for the comparison of patterns that were discovered in two separate populations. While this approach is relevant to any sequence-based patterns, we demonstrate its use on the most complex scenario of time intervals related patterns (TIRPs). The interface enables users to browse an enumeration tree of frequent patterns, or search for specific patterns, as well as discover the most discriminating TIRPs among two populations. For that a novel visualization of the temporal patterns is introduced using a bubble chart, in which each bubble represents a temporal pattern, and the chart axes represent the various metrics of the patterns, such as their frequency, reoccurrence, and more, which provides a fast overview of the patterns as a whole, as well as access specific ones. We present a comprehensive and rigorous user study on two real-life datasets, demonstrating the usability advantages of the novel approaches.

Hundreds of millions of speakers of bidirectional (BiDi) languages rely on writing systems that mix the native right-to-left script with left-to-right strings. The global reach of interactive digital technologies requires special attention to these people, whose perception of interfaces is affected by this script mixture. However, empirical research on this topic is scarce. Although leading software vendors provide guidelines for BiDi design, bidirectional interfaces demonstrate inconsistent and incorrect directionality of UI elements, which may cause user confusion and errors.

This commentary responds to the commentaries Appreciative Disagreements by J. Bardzell (Human-Computer Interaction), Usability and the Primacy of Practice by O.W. Bertelsen (Human-Computer Interact...

“Usability” is a construct conceived by the human–computer interaction (HCI) community to denote a desired quality of interactive systems and products. Despite its prominence and intensive use in HCI research, the usefulness of the usability construct to HCI theories and to our understanding of HCI has been meager. In this article I propose and discuss two reasons for this state of affairs. The first is that usability is an umbrella construct. Umbrella constructs are prevalent in scientific fields that are broad, diverse, and lack a unifying research paradigm. Accordingly, umbrella constructs, such as usability, tend to be vague and loose, characteristics that challenge our ability to accumulate and communicate knowledge and to capture real-world phenomena. The second reason involves the nature of the relations between the usability construct and its measures, a topic rarely discussed in HCI research. There appears to be a mismatch between how the HCI community has (implicitly) conceptualized these relations and how it has empirically examined them. The relations have been conceptualized according to a formative measurement model but have mostly been tested according to a reflective measurement model. The trouble is that representing the usability construct by the reflective model appears inappropriate, and representing it by the formative model involves considerable difficulties. Possible ways of addressing these issues are discussed, each with its advantages and drawbacks. I conclude that for scientific research on this subject to progress, the usability construct ought to be unbundled and replaced by well-defined constructs. The issues discussed in this article are relevant to other HCI umbrella concepts and constructs such as user experience.

Recipients of phone calls face a constant dilemma between ignoring calls at the possible expense of offending the caller, missing business opportunities or neglecting family members on one hand; and answering them at the expense of interrupting their train of thought or appearing rude and impolite towards others with whom they share a social activity on the other hand. We studied people's attitudes regarding these dilemmas, with emphasis on their social aspects. In a cross-cultural study, conducted in Israel and in Germany, we surveyed both caller and recipient attitudes towards answering mobile phone calls in various circumstances. The study also assessed the aspects of providing contextual information about a call prior to it being answered, including types of information deemed most valuable. The results emphasise the importance of social norms in affecting respondents’ attitudes towards making or accepting phone calls regardless of role (caller or recipient), gender or culture. We also found that the norms in the physical context (e.g. being in a meeting) prevailed over norms in the virtual context (e.g. the phone call). Cultural and gender differences did not affect the degree to which people were frustrated by insufficient information regarding the other party's context. However, these factors did affect the suggested design solutions to this problem. The research provides insight into the social aspects of the problem of interruptive mobile phone calls and towards designing applications that help users maintain politeness while handling the caller–recipient dilemma.

Internet search engines typically compute a relevance score for webpages given the query terms, and then rank the pages by decreasing relevance scores. The popular search engines do not, however, present the relevance scores that were computed during this process. We suggest that these relevance scores may contain information that can help users make conscious decisions. In this paper we evaluate in a user study how users react to the display of such scores. The results indicate that users understand graphical displays of relevance, and make decisions based on these scores. Our results suggest that in the context of exploratory search, relevance scores may cause users to explore more search results.

Recent economic and technological developments have led to the emergence of the services industry and to the important role that information technology (IT) plays in it. The emergence of IT-based services, which has merged people's roles as customers and users, calls for closer collaboration between the domains of human–computer interaction (HCI) and services science. This article offers three contributions within this context. First, we elaborate on the concept of the ‘incidental user’ – a person involved as a customer in a service encounter that includes exchange of information with an IT system, often mediated by a service representative who is the main user of the system. Second, we suggest that two key design aspects – sharing information with incidental users and increasing their control over the interaction – can improve the service provided by the organisation to its customers. We propose a theoretical model that describes the consequences of such design decisions on the incidental user and on the service encounter. Specifically, we propose that these decisions improve the effectiveness of the service encounter and customers’ trust in the service-providing organisation. Finally, we suggest and demonstrate design solutions that expand the range of information exchanged between the service representative and the customer – by sharing information and/or by extending the level of interaction available to the customer. By applying established HCI practices and theories, and considering new design solutions, designers of service encounter environments can improve the customer's service experience and the service provider's effectiveness.

We draw on research in human–computer interaction, information systems, environmental psychology, and marketing to develop and to test a model, which suggests that salient design characteristics of the web store (aesthetics and usability) influence the emotions of visitors to the store's site, which in turn affect their attitudes toward the store. A study examined the proposed model in two e-commerce domains—bookstores and apparel stores. The results, based on data collected from 327 participants, suggest that the effect of the design aspects on attitudes toward the store was partially mediated by affect. In addition, certain design aspects also affected attitudes directly. Specifically, effects of perceived aesthetic aspects of the online store were mainly mediated by affect. The influence of perceived usability was mainly direct and less mediated by affect. Both pleasure and arousal were associated with attitudes toward the store, with pleasure being the main mediator between store design and attitudes toward the store.

We examine how people perceive visual properties of new concepts for the design of animated vehicle instrument clusters, with emphasis on aesthetic aspects. The project is placed in the context of animations for eco-conscious driving. It consists of two stages: Creating animations and studying drivers' reactions to them. Two studies were conducted which provide various insights regarding tradeoff in the design process and drivers' preferences. The second study also serves as a first step towards the study of people's aesthetic perceptions of in-vehicle animations.

Abstract This paper describes ePaper, a research prototype system of a personalized newspaper on a mobile reading device. The ePaper aggregates content (i.e., news items) from various news providers, classifies the news items according to concepts from a news domain ontology, and delivers an electronic newspaper to each subscribed user (reader). The system personalizes the content of the newspaper according to the user's profiles and preferences by applying ontological content‐based and collaborative filtering algorithms. The user's profile is updated implicitly and dynamically, based on the tracking of their reading. Beyond personalization, the ePaper can also provide the user with a “standard edition” of a selected newspaper, as well as browsing capabilities in a repository of news items. The layout of the newspaper is adapted to the specifications of the reading device and to the user's preferences. In this overview paper, we highlight the main research challenges involved in the development of ePaper and describe how we addressed them.

Over the last decade, 'user experience' (UX) became a buzzword in the field of human - computer interaction (HCI) and interaction design. As technology matured, interactive products became not only more useful and usable, but also fashionable, fascinating things to desire. Driven by the impression that a narrow focus on interactive products as tools does not capture the variety and emerging aspects of technology use, practitioners and researchers alike, seem to readily embrace the notion of UX as a viable alternative to traditional HCI. And, indeed, the term promises change and a fresh look, without being too specific about its definite meaning. The present introduction to the special issue on 'Empirical studies of the user experience' attempts to give a provisional answer to the question of what is meant by 'the user experience'. It provides a cursory sketch of UX and how we think UX research will look like in the future. It is not so much meant as a forecast of the future, but as a proposal - a stimulus for further UX research.

The assessment of the relative value of different design features for users is of great interest for software designers. Users' evaluations are generally measured through questionnaires. We suggest that other evaluation methods, including economic measures, may provide different estimates of the relative value of features. In a laboratory experiment we created four versions of a data-entry application by independently manipulating the system's usability and aesthetics. Users' evaluations of the four experimental systems were obtained in a within-subjects design. In addition, five between-subjects experimental conditions were created, based on the evaluation method (questionnaire alone or auction and questionnaire), monetary incentives (present or absent), and experience in using the system (present or absent). In questionnaire-based responses, the systems' usability affected evaluations of usability as well as aesthetics. Similarly, the systems' aesthetics affected evaluations of both aesthetics and usability. Questionnaire-based evaluations of usability and aesthetics were not affected by experience with the system or by monetary performance incentives. Auction bids were only influenced by the system's usability: bids corresponded to the objective performance levels that could be attained with the different systems. The results suggest that by using economic methods, researchers and practitioners can obtain system evaluations that are strongly related to performance criteria and that may be more valid when the evaluation context favors task-oriented performance.

The emotional system is highly sensitive to individual, cultural and contextual differences. This creates difficulties in studying and designing affect in HCI. It is hard to see how grand visions of affective HCI survive the harsh complexity and intricacy of human emotions. Perhaps a more realistic approach to accommodating users' affective needs is to design interactive technologies that would help users help themselves. Users can stay in full control, being allowed to personalize and tailor applications in a way that satisfies, mitigates, or enhances various emotional states or needs.

Given the increased globalization and popularization of computer applications, translating a system's human interface into the local language has become a major consideration for software vendors and distributors. In this paper, we suggest a theoretical framework for the study of user interface translation. The framework includes recognizing vendors' and users' costs of, and benefits from, software translation. An experiment was conducted, based on this framework, to test user performance and preferences regarding interface translations. The experiment manipulated the translation of two interface components: documentation language and manipulation language. The results indicate that users are sensitive to different combinations of interface translation in a way that is commensurate with the instruction-following process (Terwilliger and Polson 1997). Users performed best when a fully translated interface was used and worst when only the manipulation language was translated. Users' preferences were in line with their performance, indicating that a cost benefit approach can serve as a promising starting point to the study of interface translation.

An experiment was conducted to test the relationships between users ' perceptions of a computer-ized system's beauty and usability. The experiment used a computerized application as a surrogate for an Automated Teller Machine (ATM). Perceptions were elicited before and after the participants used the system. Pre-experimental measures indicate strong correlations between system's perceived aesthetics and perceived usability. Post-experimental measures indicated that the strong correlation remained intact. A multivariate analysis of covariance revealed that the degree of system's aesthetics affected the post-use perceptions of both aesthetics and usability, whereas the degree of actual usability had no such effect. The results resemble those found by social psychologists regarding the effect of physical attractiveness on the valuation of other personality attributes. The ®ndings stress the importance of studying the aesthetic aspect of human±computer interaction (HCI) design

Article Free Access Share on Aesthetics and apparent usability: empirically assessing cultural and methodological issues Author: Noam Tractinsky Industrial Engineering and Management, Ben Gurion University of the Negev, P.O. Box 653, Beer Sheva, 84105, Israel Industrial Engineering and Management, Ben Gurion University of the Negev, P.O. Box 653, Beer Sheva, 84105, IsraelView Profile Authors Info & Claims CHI '97: Proceedings of the ACM SIGCHI Conference on Human factors in computing systemsMarch 1997 Pages 115–122https://doi.org/10.1145/258549.258626Published:27 March 1997Publication History 233citation5,516DownloadsMetricsTotal Citations233Total Downloads5,516Last 12 Months319Last 6 weeks56 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteeReaderPDF