Helping young designers design for children: evaluating toys and possible values

When designing for children, it remains important not only to emphasise elements such as ergonomics and usability but also values, that can be translated into pleasurable user experiences for children. While methods such as interviews are commonly used to better understand our users, interviewing children can be a challenge. Experience as part of a year project on designing toys for children highlighted that children might answer questions in a surprising way, or students might struggle to ask questions that are not suggestive. To overcome some of these difficulties, we developed a Value Matrix, that can help students to explore the various values or incentives children might have while playing. This Value Matrix can subsequently be used to scan existing toys or new concepts and translate these insights into toys that consist of a wider variety of values children like to experience in a game or toy. We evaluated this tool with 118 first year Industrial Product Design students. Our results show that the Value Matrix gives students guidance and support while designing

Towards Evaluating the Quality of a Spreadsheet: The Case of the Analytical Spreadsheet Model

We consider the challenge of creating guidelines to evaluate the quality of a spreadsheet model. We suggest four principles. First, state the domain-the spreadsheets to which the guidelines apply. Second, distinguish between the process by which a spreadsheet is constructed from the resulting spreadsheet artifact. Third, guidelines should be written in terms of the artifact, independent of the process. Fourth, the meaning of "quality" must be defined. We illustrate these principles with an example. We define the domain of "analytical spreadsheet models", which are used in business, finance, engineering, and science. We propose for discussion a framework and terminology for evaluating the quality of analytical spreadsheet models. This framework categorizes and generalizes the findings of previous work on the more narrow domain of financial spreadsheet models. We suggest that the ultimate goal is a set of guidelines for an evaluator, and a checklist for a developer.Comment: Proc. European Spreadsheet Risks Int. Grp. (EuSpRIG) 2011 ISBN 978-0-9566256-9-

GCS: A Quick and Dirty Guideline Compliance Scale

Expert-based usability evaluation methods offer valuable alternatives to traditional user testing in Human-Machine Interaction (HMI) development. While general measures of usability for user-based empirical studies are well-known throughout the community of researchers, expert-based approaches often lack such general measures of usability. This research introduces the Guideline Compliance Scale (GCS), a measure that can be applied during guideline reviews to assess the overall level of usability. Several guidelines relevant for the system being evaluated are rated by the evaluators according to their compliance. In the case study for our research, an automotive user interface was empirically evaluated in a user study as well as a guideline review with experts. The usability problem lists, which form part of the output, were made comparable by classification using the Usability Problem Classifier (UPC). An in-depth analysis revealed differences and similarities in the problem identification of both applied methods. Comparing the results of the GCS from the guideline review with the results of the System Usability Scale (SUS) from the user study, regarding the overall level of usability, showed similar results for both scales

Z39.50 broadcast searching and Z-server response times: perspectives from CC-interop

This paper begins by briefly outlining the evolution of Z39.50 and the current trends, including the work of the JISC CC-interop project. The research crux of the paper focuses on an investigation conducted with respect to testing Z39.50 server (Z-server) response times in a broadcast (parallel) searching environment. Customised software was configured to broadcast a search to all test Z-servers once an hour, for eleven weeks. The results were logged for analysis. Most Z-servers responded rapidly. 'Network congestion' and local OPAC usage were not found to significantly influence Z-server performance. Response time issues encountered by implementers may be the result of non-response by the Z-server and how Z-client software deals with this. The influence of 'quick and dirty' Z39.50 implementations is also identified as a potential cause of slow broadcast searching. The paper indicates various areas for further research, including setting shorter time-outs and greater end-user behavioural research to ascertain user requirements in this area. The influence more complex searches, such as Boolean, have on response times and suboptimal Z39.50 implementations are also emphasised for further study. This paper informs the LIS research community and has practical implications for those establishing Z39.50 based distributed systems, as well as those in the Web Services community. The paper challenges popular LIS opinion that Z39.50 is inherently sluggish and thus unsuitable for the demands of the modern user

An information processing view of fringe consciousness

Commentary on: Mangan, B. (2001) Sensation's ghost: the non-sensory "fringe" of consciousness. Psyche, 7(18), October 2001 http://psyche.cs.monash.edu.au/v7/psyche-7-18-mangan.html In posing the sense of 'Rightness' as a quality-of-processing measure, Mangan runs the risk of a homuncular argument, since some process needs to observe Rightness, as well as the sensory qualia. Interacting Cognitive Subsystems (ICS) is an information processing account of cognitive activity that is concordant with Mangan's arguments, but which avoids the need for any supervisory system or central executive. The approach models thought as the flow of information between nine different levels of mental representation, and includes a distinction between an unselective diffuse awareness of all active levels of representation, and a selective focal awareness of a single topic of processing. A distinction is introduced between two non-sensory representations: propositional and implicational meaning. While the propositional representations can be easily verbalised, the sensory and implicational representations can only be verbalised via propositional representations. All representations are accessible, although implications and sensory representations are harder to express verbally. As a principled model, ICS can be mapped into anatomical and neural models, supporting argumentation about physical pathways in the brain and functional pathways in the mind

What did I really vote for? On the usability of verifiable e-voting schemes

E-voting has been embraced by a number of countries, delivering benefits in terms of efficiency and accessibility. End-to-end verifiable e-voting schemes facilitate verification of the integrity of individual votes during the election process. In particular, methods for cast-as-intended verification enable voters to confirm that their cast votes have not been manipulated by the voting client. A well-known technique for effecting cast-as-intended verification is the Benaloh Challenge. The usability of this challenge is crucial because voters have to be actively engaged in the verification process. In this paper, we report on a usability evaluation of three different approaches of the Benaloh Challenge in the remote e-voting context. We performed a comparative user study with 95 participants. We conclude with a recommendation for which approaches should be provided to afford verification in real-world elections and suggest usability improvements

Social robots for older users: a possibility to support assessment and social interventions

In the last decades, various researches in the field of robotics have created numerous opportunities for innovative support of the older population. The goal of this work was to review and highlight how social robots can help the daily life of older people, and be useful also as assessment tools. We will underline the aspects of usability and acceptability of robotic supports in the psychosocial work with older persons. The actual usability of the system influences the perception of the ease of use only when the user has no or low experience, while expert users’ perception is related to their attitude towards the robot. This finding should be more deeply analysed because it may have a strong influence on the design of future interfaces for elderly-robot interaction. Robots can play an important role to tackle the societal challenge of the growing older population. The authors report some recent studies with older users, where it was demonstrated that the acceptability of robotics during daily life activities, and also in cognitive evaluation, could be supported by social robot

Informatics: the fuel for pharmacometric analysis

The current informal practice of pharmacometrics as a combination art and science makes it hard to appreciate the role that informatics can and should play in the future of the discipline and to comprehend the gaps that exist because of its absence. The development of pharmacometric informatics has important implications for expediting decision making and for improving the reliability of decisions made in model-based development. We argue that well-defined informatics for pharmacometrics can lead to much needed improvements in the efficiency, effectiveness, and reliability of the pharmacometrics process. The purpose of this paper is to provide a description of the pervasive yet often poorly appreciated role of informatics in improving the process of data assembly, a critical task in the delivery of pharmacometric analysis results. First, we provide a brief description of the pharmacometric analysis process. Second, we describe the business processes required to create analysis-ready data sets for the pharmacometrician. Third, we describe selected informatic elements required to support the pharmacometrics and data assembly processes. Finally, we offer specific suggestions for performing a systematic analysis of existing challenges as an approach to defi ning the next generation of pharmacometric informatics

A Design Thinking Approach to the Design of a Digital Tool to Support People on a Weight Management Journey

The application of digital tools in support of people making a positive behaviour change is well established. However, it has been observed that the impact is not as significant as predicted. The aim of this project was to investigate whether a Design Thinking approach could generate new insights that could be used to drive the development of an innovative application to help people on their weight management journey. Findings show that although no radically new user needs were identified, careful planning emerged as the most significant challenge; which contrasts with the heavy focus of commercially available apps on calorie and activity tracking

Museum Education Materials: The design and implementation of demonstrations and activities for Science Museum and classroom use

Bringing the essence of the Launch Pad Gallery in the London Science Museum into British classrooms is an ongoing challenge. This has been partially overcome by the design, development and testing of various fun and interactive scientific demonstrations and classroom activities. These activities have been specified in plans for the construction and operation of demonstrations, as well as in plans for future development. In addition to teaching children about scientific concepts, this project will inspire and excite students about science