Evaluation studies of robotic rollators by the user perspective: A systematic review

Background: Robotic rollators enhance the basic functions of established devices by technically advanced physical, cognitive, or sensory support to increase autonomy in persons with severe impairment. In the evaluation of such Ambient Assisted Living solutions, both the technical and user perspectives are important to prove usability, effectiveness, and safety, and to ensure adequate device application.Objective: The aim of this systematic review is to summarize the methodology of studies evaluating robotic rollators with focus on the user perspective and to give recommendations for future evaluation studies.Methods: A systematic literature search up to December 31, 2014 was conducted based on the Cochrane Review methodology using the electronic databases PubMed and IEEE Xplore. Articles were selected according to the following inclusion criteria: Evaluation studies of robotic rollators documenting human-robot interaction, no case reports, published in English language.Results: Twenty-eight studies were identified that met the predefined inclusion criteria. Large heterogeneity in the definitions of the target user group, study populations, study designs, and assessment methods was found across the included studies. No generic methodology to evaluate robotic rollators could be identified. We found major methodological shortcomings related to insufficient sample descriptions and sample sizes, and lack of appropriate, standardized and validated assessment methods. Long-term use in habitual environment was also not evaluated.Conclusions: Apart from the heterogeneity, methodological deficits in most of the identified studies became apparent. Recommendations for future evaluation studies include: clear definition of target user group, adequate selection of subjects, inclusion of other assistive mobility devices for comparison, evaluation of the habitual use of advanced prototypes, adequate assessment strategy with established, standardized and validated methods, and statistical analysis of study results. Assessment strategies may additionally focus on specific functionalities of the robotic rollators allowing an individually tailored assessment of innovative features to document their added value

Ask Them—They’ll Tell You! Eliciting Student Perspectives to Improve Services

Most people avoid doing qualitative research because they think it is not scientifically rigorous and requires time and lots of money. In fact, there is a lot one can do with little overhead that reaps immediate benefits for improving services and gaining unexpected valuable insights. This study uses a web redesign and assessment project to showcase some simple ways to get useful information from students. Library web pages provide the main access point to many of the library’s services and resources, which also continue to change and accrue. Does the web site really serve students\u27 research needs today? Where do you focus energy on needed improvements? How do you integrate new services? What resources do you need to do it? In this essay, discover how to use quick and inexpensive methods to grab student feedback in order to help revise and assess web pages and other services. Learn how to identify common issues for focused improvements. Gain insight on research deficiencies perhaps better addressed through teaching and other services. The researcher presents findings on several methods used to gain students\u27 perspectives before a major web page redesign and after “improvements” some months later

Use of an agile bridge in the development of assistive technology

Engaging with end users in the development of assistive technologies remains one of the major challenges for researchers and developers in the field of accessibility and HCI. Developing usable software systems for people with complex disabilities is problematic, software developers are wary of using user-centred design, one of the main methods by which usability can be improved, due to concerns about how best to work with adults with complex disabilities, in particular Severe Speech and Physical Impairments (SSPI) and how to involve them in research. This paper reports on how the adoption of an adapted agile approach involving the incorporation of a user advocate on the research team helped in meeting this challenge in one software project and offers suggestions for how this could be used by other development teams

Psychological elements explaining the consumer's adoption and use of a website recommendation system: A theoretical framework proposal

The purpose of this paper is to understand, with an emphasis on the psychological perspective of the research problem, the consumer's adoption and use of a certain web site recommendation system as well as the main psychological outcomes involved. The approach takes the form of theoretical modelling. Findings: A conceptual model is proposed and discussed. A total of 20 research propositions are theoretically analyzed and justified. Research limitations/implications: The theoretical discussion developed here is not empirically validated. This represents an opportunity for future research. Practical implications: The ideas extracted from the discussion of the conceptual model should be a help for recommendation systems designers and web site managers, so that they may be more aware, when working with such systems, of the psychological process consumers undergo when interacting with them. In this regard, numerous practical reflections and suggestions are presented

Emphasizing the user in the usability study: Investigating activity theory and website navigation

The effects of organizational schemes in website design have been studied using measures of speed, number of mouse-clicks, accuracy, and user recollection of website content information. This study investigates self-reported user confidence and satisfaction of websites using two different organizational schemes. Users were randomly assigned to one of the two sites and asked to perform a series of information-retrieval tasks. Time taken to complete the tasks was recorded and participants completed a survey measuring their confidence and satisfaction using a website. No significant differences were found between the two websites in respect to user self-reported confidence and satisfaction. The results suggest that the design and layout of the website are not significant, as long as basic design guidelines are followed