Design considerations to improve cognitive ergonomic issues of unmanned vehicle interfaces utilizing video game controllers

Unmanned (UAVs, UCAVs, and UGVs) systems still have major human factors and ergonomic challenges related to the effective design of their control interface systems, crucial to their efficient operation, maintenance, and safety. Unmanned system interfaces with a human centered approach promote intuitive interfaces that are easier to learn, and reduce human errors and other cognitive ergonomic issues with interface design. Automation has shifted workload from physical to cognitive, thus control interfaces for unmanned systems need to reduce mental workload on the operators and facilitate the interaction between vehicle and operator. Two-handed video game controllers provide wide usability within the overall population, prior exposure for new operators, and a variety of interface complexity levels to match the complexity level of the task and reduce cognitive load. This paper categorizes and provides taxonomy for 121 haptic interfaces from the entertainment industry that can be utilized as control interfaces for unmanned systems. Five categories of controllers were based on the complexity of the buttons, control pads, joysticks, and switches on the controller. This allows the selection of the level of complexity needed for a specific task without creating an entirely new design or utilizing an overly complex design.     

Empowering Patients Through Access to Information

The United States federal government is in the midst of an e- government revolution characterized by a shift from paper-based citizen-government interactions to electronic-based interactions. Driven by the demands of citizens and supported by the President and Congress, federal departments are redesigning the look and feel of their Internet presences, moving away from traditional bureaucracy- centred presentation of information to more usable citizen-centred presentations. The Department of Health and Human Services (HHS), the USA's principal federal agency tasked with protecting the health of all Americans and providing essential human services, has undertaken a massive reorganization of its e-health enterprise. The most publicly visible component of this reorganization is the hhs.gov portal website. This desperately needed portal - usability testing indicated that more than 60 per cent of visitors to the Department's original website failed to find the information they sought - provides easy access to the wealth of HHS information and links its diverse operating agencies. The new HHS portal simplifies citizen access to the Department by: decompartmentalizing information by removing content from bureaucratic silos² and rearranging it in a natural navigation scheme; tuning content and navigation features to ensure that all users have access to information tailored for them; presenting content in appropriate and citizen-preferred formats; and complying with federal accessibility regulations for blind and vision-impaired users. This paper presents a series of lessons learned during the development of the HHS portal, and results of usability testing to determine what common design features present accessibility problems particular to the blind and vision-impaired communities. These discussions of practical avenues to improving the accessibility and usability of e-health websites through appropriate and effective information designs are followed by our thoughts on the future of Internet architectures and the limitations of 'layering' technologies when striving for universal accessibility.     

Improving public relations web sites through usability research

Public relations communicators can use a variety of techniques to pretest the effectiveness of messages, including readability testing, focus groups, peer and jury reviews, experiments and field testing/test marketing. Another yet-untapped technique is usability research, a set of procedures used for more than 50 years in product and software development. Although usability is a technique that can be applied to any type of public relations message, usability research has particular relevance for enhancing the effectiveness of web sites and other new interactive techniques. This article examines the nature and value of usability research, and the elements of an effective web site based on usability principles. Applications to other types of public relations communications are also discussed.     

THE INFLUENCE OF HOLISTIC AND ANALYTIC COGNITIVE STYLES ON ONLINE INFORMATION DESIGN: Toward a communication theory of cultural cognitive design

Although studies have linked culture to online user preferences and performance, few communication researchers have recognized the impact of culture on online information design and usability. It is important to ask if people are better able to use and prefer Web sites created by designers from their own culture. We propose that to improve computer-mediated communication, Web site design should accommodate culturally diverse user groups. First, a body of research is presented that aligns East Asian cultures with more holistic cognitive styles and Western cultures with more analytical cognitive styles. Building on this contrast, a theory of cultural cognitive design is proposed as a means of understanding how cognitive styles that develop under the influence of culture lead to different ways of designing and organizing information for the Web.     

Nations, national identities and human agency: putting people back into nations

This article stresses the necessity of more detailed considerations of social action and human agency in sociological theorising on national identity. It argues that, as much as other sociological categories such as 'class', 'gender', 'race', categories of 'nation' and 'national identity' are of important practical use in giving order to the social world. The article is primarily intended as a critique of a good deal of the sociological work in this area, and suggests the need to more systematically consider how individuals actively organise and account for ideas of nation and national identity. There is now a growing corpus of qualitative studies of national identity; what is needed now is to begin to work towards a general sociological theory of national identity.     

Elderly People's Perceptions of a Telehealthcare System: Relative Advantage,Compatibility, Complexity and Observability

The use of telehealthcare systems to promote independent living for elderly people is growing. The results presented in this article, derived from an initial user lab test of a telecare system—GiraffPlus—indicate that the crucial factor for adoption of telehealthcare systems is not usability but the system's ability to support autonomy in everyday life. Eleven users tested the usability and reported what they perceived as possible benefits of having such a system at home. To support autonomy, customization is crucial for the system to be perceived as meaningful for the individual. Our analysis confirms previous research.     

A literature review about usability evaluation methods for e-learning platforms

The usability analysis of information systems has been the target of several research studies over the past thirty years. These studies have highlighted a great diversity of points of view, including researchers from different scientific areas such as Ergonomics, Computer Science, Design and Education. Within the domain of information ergonomics, the study of tools and methods used for usability evaluation dedicated to E-learning presents evidence that there is a continuous and dynamic evolution of E-learning systems, in many different contexts -academics and corporative. These systems, also known as LMS (Learning Management Systems), can be classified according to their educational goals and their technological features. However, in these systems the usability issues are related with the relationship/interactions between user and system in the user's context. This review is a synthesis of research project about Information Ergonomics and embraces three dimensions, namely the methods, models and frameworks that have been applied to evaluate LMS. The study also includes the main usability criteria and heuristics used. The obtained results show a notorious change in the paradigms of usability, with which it will be possible to discuss about the studies carried out by different researchers that were focused on usability ergonomic principles aimed at E-learning.     

The future of the social sciences and humanities in the science of complex systems

The modern world is characterized by problems that involve systems with social and physical subsystems. They are entangled systems of system of systems with multilevel dynamics. There is no methodology able to combine the partial micro-, meso- and macrotheories that focus on subsystems into a coherent representation of the dynamics of the whole. Policy requires prediction, but the traditional definitions of prediction are not appropriate for multilevel socio-complex systems. Heterogeneous multilevel systems have subsystems that may behave with great regularity over long periods of time, and then suddenly change their behavior due to weak coupling with other subsystems. Thus systems that are usually highly predictable may be subject to rare but extreme events, and this is highly relevant to policy-makers. New ways of thinking are needed that transcend the confines of the traditional humanities, social and physical sciences. Of necessity, this science will be embedded in the design, implementation and management of systems, and therefore the new science will be entwined with policy. Much policy is interventionist experiment. By themselves scientists cannot conduct experiments on socio-complex systems because they have neither the mandate nor the money to design and instrument experiments on the large scale. Policy-makers – elected politicians and their officers – design the future, making it as they believe it ought to be. New kinds of scientific predictions can inform policy but can only be instrumented and tested if there is goodwill between policy-makers and scientists, where scientists are junior partners. Scientists offer policy-makers theories and predictions of social systems based on logical-deductive methods. Policy is generally made on the basis of rhetoric, with the best possible arguments being deployed to support favored conclusions. To convince policy-makers that a particular scientific theory should be used, scientists move from the logical-deductive to the rhetorical. Thus the full theory of a science of complex systems has to provide a logical-deductive metatheory of the rhetorical and logical-deductive systems that make decisions and implement them. Traditional natural and physical science has avoided rhetoric, which is much better understood in the humanities and social sciences. Thus it is concluded that the science of complex systems must embrace the humanities and social sciences not just because their domains of study are relevant but also because their methods are necessary to understand how science and policy work together in complex social systems.     

Usability testing,initial implementation,and formative evaluation of an evidence-based intervention: Lessons from a demonstration project to reduce long-term foster care

The field of child welfare faces an undersupply of evidence-based interventions to address long-term foster care. The Permanency Innovations Initiative is a five-year federal demonstration project intended to generate evidence to reduce long stays in foster care for those youth who encounter the most substantial barriers to permanency. This article describes a systematic and staged approach to implementation and evaluation of a PII project that included usability testing as one of its key activities. Usability testing is an industry-derived practice which analyzes early implementation processes and evaluation procedures before they are finalized. This article describes the iterative selection, testing, and analysis of nine usability metrics that were designed to assess three important constructs of the project's initial implementation and evaluation: intervening early, obtaining consent, and engaging parents. Results showed that seven of nine metrics met a predetermined target. This study demonstrates how findings from usability testing influenced the initial implementation and formative evaluation of an evidence-supported intervention. Implications are discussed for usability testing as a quality improvement cycle that may contribute to better operationalized interventions and more reliable, valid, and replicable evidence.     

Independence, Participation, and the Meaning of Intellectual Ability

This article presents a non-speaking person's perspectives on independence and the implications of newfound communication abilities for her participation in the world and upon the meaning of intellectual ability. The person with the communication disability also has autism and, early in her life, was classified by school officials as 'severely retarded'. The narrative focuses especially on the concepts of independence, participation, and intellectual competence or intellectual performance, and their relationship to the concepts of democracy, freedom, and identity, all from a non-essentialist perspective. In addition, the article addresses practical questions about how, from her perspective, the non-speaking person developed the ability to communicate without physical support.     

Making places: The role of attachment in creating the sense of place for traditional streets in Malaysia

Sense of place definition includes the point where the physical element, activity and meaning are intertwined in the people experience of place. In urban design and place quality research, much has been discussed on the significance of the physical elements and activities in creating the sense of place; however, the role of place attachment as a component that gives places meaning(s) has not been adequately explored. This article is based on the main findings of a doctoral research examining attachment to traditional shopping streets in the city centre of Kuala Lumpur. Surveys and face-to-face interviews were conducted with users of the streets to investigate place attachment and its influence on place identity. The finding demonstrates that attachment to the traditional streets is strong and it influences the users’ perception on the identity of the places. The streets were regarded as very important in sustaining the economic activities and meaningful in accentuating cultural diversity and self and group identity. The historical significance of the area as the earliest shopping locations in the city evoked personal and shared meanings to the long-term users who developed stronger place attachment. The paper concludes by establishing that place attachment has a significant contribution to the sense of place therefore should be considered in the design of urban places especially when redevelopment is one of the options.     

From usability requirement to technical specifications for hand-held tools and materials: an applied research in the construction field

Literature shows incidence of musculoskeletal disorders in bricklaying workers as well as the relevance of good designed hand-held tools in musculoskeletal disorders prevention. In this framework, it can be supposed that providing usable hand-held tools and material in construction worksites will help to improve bricklayers' working conditions. Here a study is presented aimed at framing a methodology for usability assessment of bricklayers handled objects, in order to provide employers with practical indicators for choosing tools and materials best fitting workers needs, under the effectiveness, efficiency and satisfaction perspective. On the basis of a task analysis, usability requirements for bricklaying hand-held tools and materials have been detailed and related, quantitative and qualitative, technical specifications have been elicited. Theoretical framework and usability assessment methodology are presented and, finally, findings from a field application are discussed.     

Protection or pleasure: female footwear

This article addresses the love for shoes by the perspective of design and emotion. Reviewing the footwear history, we realize that it did not take too long for the shoes start to have new functions, aesthetic and symbolic, which eventually came to have greater relevance in the acquisition of women's shoes. Today, these outweigh the importance of physical comfort for many women, that once feeling pretty, do not realize the discomfort of the shoe. Studies indicate that the objects we love have a strong influence on our sense of identity, especially when dealing with clothing articles that have the power to show on our appearance our identity, tastes and preferences. Crossing the semiotics field, the footwear is analyzed as an object of feminine desire, imbued with symbolic relations. As a result, we propose a framework to describe the emotional relationship between women and shoes.     

Adoption and feasibility of a communication app to enhance social connectedness amongst frail institutionalized oldest old: an embedded case study

The risks of social isolation and loneliness are becoming emergent issues for older adults (aged 65+) in industrialized countries, particularly for oldest old people (80+) who are frail and institutionalized. Socially isolated and lonely older people are more likely to experience depression, social disengagement, cognitive and physical decline, morbidity, and early mortality. In response to these significant negative health and socioeconomic costs, research suggests using new technologies to enhance opportunities for social connectedness as a strategy to help alleviate both social isolation and loneliness. In this context, following a participatory design method, we developed an accessible communication app with and for frail institutionalized older adults. To test the adoption of this innovative technology and its feasibility to address social isolation and loneliness, we conducted a two-month deployment of the app in a long-term care home with five oldest old and their relatives. Due to access, recruitment, and ethical challenges, the oldest old are a specially understudied group. Using an embedded case study (based on interviews, psychometric scales, field observations, and usability and accessibility testing) and a recursive approach to technology studies, our findings show that technology adoption is based on a complex set of interrelated factors: social, attitudinal, physical, digital literacy, and usability. We also discuss the feasibility of the app to enhance perceived social connectedness amongst our target population, provided that at least one strong tie is involved and communication norms and expectations across generations are considered.     

The Search for an Authentic Entrepreneurial Identity: Difference and Professionalism among Women Business Owners

This article contributes to the recent stream of research on enterprise and identity by exploring the authenticity‐driven identity work of a group of women business owners. While previous research has highlighted the effort some female business owners put into fitting in with the masculine identity of the entrepreneur, this article focuses on those women who self‐consciously adopt a feminized entrepreneurial identity as a means of being ‘who I really am’ in a business context. Nevertheless, despite their expressed commitment to a feminized identity, the article highlights their incorporation of a contrasting position or antagonism in this authenticity‐driven endeavour. Drawing on Charme's notion of existential authenticity, which places an emphasis on the cultural, historical, political, economic and physical limits to being ‘true to oneself’, the article shows how the situated nature of women's search for an authentically driven entrepreneurial identity means that they draw on a feminized discourse of difference and a contrasting masculine discourse of professionalism in their identity construction labours.     

The role of usability in the evaluation of accidents: human error or design flaw?

This article aims to highlight the role of consumer products companies in the heart and the extent of accidents involving these types of products, and as such undesired events take part as an agent in influencing decision making for the purchase of a product that nature on the part of consumers and users. The article demonstrates, by reference, interviews and case studies such as the development of poorly designed products and design errors of design can influence the usage behavior of users, thus leading to accidents, and also negatively affect the next image of a company. The full explanation of these types of questions aims to raise awareness, plan on a reliable usability, users and consumers in general about the safe use of consumer products, and also safeguard their rights before a legal system of consumer protection, even far away by the CDC--Code of Consumer Protection.     

Exploring user experience and technology acceptance for a fall prevention system: results from a randomized clinical trial and a living lab

Background

Falls are common in older adults and can result in serious injuries. Due to demographic changes, falls and related healthcare costs are likely to increase over the next years. Participation and motivation of older adults in fall prevention measures remain a challenge. The iStoppFalls project developed an information and communication technology (ICT)-based system for older adults to use at home in order to reduce common fall risk factors such as impaired balance and muscle weakness. The system aims at increasing older adults’ motivation to participate in ICT-based fall prevention measures. This article reports on usability, user-experience and user-acceptance aspects affecting the use of the iStoppFalls system by older adults.

Methods

In the course of a 16-week international multicenter study, 153 community-dwelling older adults aged 65+ participated in the iStoppFalls randomized controlled trial, of which half used the system in their home to exercise and assess their risk of falling. During the study, 60 participants completed questionnaires regarding the usability, user experience and user acceptance of the iStoppFalls system. Usability was measured with the System Usability Scale (SUS). For user experience the Physical Activity Enjoyment Scale (PACES) was applied. User acceptance was assessed with the Dynamic Acceptance Model for the Re-evaluation of Technologies (DART). To collect more detailed data on usability, user experience and user acceptance, additional qualitative interviews and observations were conducted with participants.

Results

Participants evaluated the usability of the system with an overall score of 62 (Standard Deviation, SD 15.58) out of 100, which suggests good usability. Most users enjoyed the iStoppFalls games and assessments, as shown by the overall PACES score of 31 (SD 8.03). With a score of 0.87 (SD 0.26), user acceptance results showed that participants accepted the iStoppFalls system for use in their own home. Interview data suggested that certain factors such as motivation, complexity or graphical design were different for gender and age.

Conclusions

The results suggest that the iStoppFalls system has good usability, user experience and user acceptance. It will be important to take these along with factors such as motivation, gender and age into consideration when designing and further developing ICT-based fall prevention systems.

     

The use of participant-observation protocol in an industrial engineering research

Based on literature, this article aims to present the "participant-observation' research protocol, and its practical application in the industrial engineering field, more specifically within the area of design development, and in the case shown by this article, of interiors' design. The main target is to identify the concept of the method, i.e., from its characteristics to structure a general sense about the subject, so that the protocol can be used in different areas of knowledge, especially those ones which are committed with the scientific research involving the expertise from researchers, and subjective feelings and opinions of the users of an engineering product, and how this knowledge can be benefic for product design, contributing since the earliest stage of design.     

Grieving for mestizaje: alternative approaches to Maya identity in Yucatan,Mexico

This article takes as its point of departure the highly contested theoretical terrain of ‘Maya’ identity in Yucatan, Mexico. Set in the physical terrain of a state psychiatric hospital, this article uses a framework of identity culled from the narrative of a young woman, ‘Claudina’, committed to its wards, to argue that being ‘in-between’ categories of ethnic identity, an experience she characterises as a painful sense of ambiguous loss, can be fruitfully analysed using an analytical framework of ethnic identity introduced by Claudina herself. Specifically, I argue that categories of identity culled from Claudina's story – mestizaje and elegancia – represent a valuable opportunity to think about how power dynamics and relationships operate in situations of ambivalent identities and social suffering. To this end, I use Claudina's language as a point of departure for understanding the lived experience of everyday life in Yucatan today.