scholarly journals Usability Evaluation of a One-Handed Touchbased OR-Table Control

2018 ◽  
Vol 4 (1) ◽  
pp. 157-160
Author(s):  
Philipp Krumholz ◽  
Armin Janß ◽  
Klaus Radermacher
Keyword(s):  
User Interfaces ◽  
User Satisfaction ◽  
Functional Model ◽  
Current Approach ◽  
Usability Study ◽  
Effectiveness And Efficiency ◽  
Subsequent Activation ◽  
Integrated Or ◽  
Areas Of Interest ◽  
Usability Criteria

AbstractDue to the increasing number and the complexity of devices in the operation room (OR), which are caused by the diversity and variety of proprietary interface designs, the probability for use errors increases. In order to ensure a safe intraoperative workflow in the OR, integrated OR systems with central work stations have been developed. For this, there also exist concepts for handhelds, which offer touchbased graphical user interfaces (GUI). However, those come along with various limitations, e.g. possibility for one-handed interaction, which is influenced i.a. by the size, the design and the working task. Within our investigations, requirements for an enhanced concept have been gathered by taking into account corresponding standards regarding ergonomics, riskmanagement and usability-engineering. According to DIN EN 60601-2-46, machinery directive 2006/42 EG and guideline VDI/VDE 3850, the stipulated user interface has been designed in order to preselect functions on the touchscreen and their subsequent activation by physical buttons. Furthermore, the accessibility of areas of interest has been considered on the touchscreen, to avoid the re-gripping of the handheld. As a first step, the OR-table control for a tablet has been realized with Microsoft Blend, using a 22’ touch monitor. The usability study has been conducted in accordance with DIN EN ISO 9241-11 and IEC 62366. A group of ten surgeons and OR nurses underwent multiple tasks in the framework of a usability test, comparing the developed concept with a common keypad handheld. The study showed comparable results concerning the usability criteria effectiveness and efficiency. However, the concept clearly outperforms the handheld regarding user satisfaction, in particular due to the higher learnability and the easy transfer of daily-used GUI skills. The current approach motivates to develop a functional model of a touch-based handheld for OR-tables as well as with further integrated OR devices and to conduct additional usability studies.

Usability study of the mobile library App: an example from Chongqing University

2015 ◽  
Vol 33 (3) ◽  
pp. 340-355 ◽  
Author(s):  
Qunyi Wei ◽  
Zhaoxin Chang ◽  
Qin Cheng
Keyword(s):  
User Experience ◽  
User Satisfaction ◽  
Design Methodology ◽  
Mobile Apps ◽  
Mobile App ◽  
Information Services ◽  
Usability Study ◽  
Content Type ◽  
Post Test ◽  
Effectiveness And Efficiency

Purpose – The purpose of this paper is to determine the usability of the mobile library App of Chongqing University and to provide recommendations for improving the experience of App users. Design/methodology/approach – Usability testing, which comprised pre-test questionnaires, accomplishing tasks, and post-test surveys, was conducted in this study. The effectiveness and efficiency of the App, as well as user satisfaction with it, were measured. Findings – The mobile App was proven effective but the efficiency of the App required improvement. With regard to user satisfaction, the factors “clarity” and “usefulness” received the lowest and highest scores, respectively. The descriptions of mobile services were unclear and confused users; nonetheless, the services provided by this App were appealing and useful to the users. Based on the measured user experience, this study proposed several recommendations for enhancing the usability of the App. Originality/value – An increasing number of domestic and foreign libraries have begun to use mobile Apps to provide new services to patrons. In the future, smartphones are likely to become crucial to the delivery of information services. Given the extensive use of the Super Star Mobile Library system adopted by Chongqing University Library in China, the usability of such a system must be investigated. Improving the usability of the mobile library App can help enhance user experience.

scholarly journals Usability Study of the iProvèn BPM-337BT Blood Pressure Monitor and App

2019 ◽  
Vol 63 (1) ◽  
pp. 1910-1914
Author(s):  
Valerie Cote ◽  
Arjun H. Rao ◽  
Farzan Sasangohar
Keyword(s):  
Blood Pressure ◽  
User Interfaces ◽  
User Satisfaction ◽  
Usability Study ◽  
Blood Pressure Monitor ◽  
Pressure Monitor ◽  
Usability Test ◽  
Blood Pressure Monitors ◽  
Potential Risks ◽  
Potential Use

This study involved a usability test of the iProvèn BPM-337BT, a popular wrist-based blood pressure monitor. With the increased variety of off-the-shelf blood pressure monitors, potential risks associated with various designs as well as usability and interaction issues remain unknown for many devices. The goal of this usability study was to discover any potential use errors and issues associated with user interfaces of the FDA-approved iProvèn BPM. Results suggest that the device had dense and unclear instructions, imperceptible icons on the display, and some inconsistencies in the application which could be redesigned to prevent use errors and increase user satisfaction.

scholarly journals Development Framework for the Evaluation of Usability in E-Government: A Case Study of E-Finance Government of Malang

2017 ◽  
Vol 2 (2) ◽  
Author(s):  
Vivin Ayu Lestari
Keyword(s):  
User Satisfaction ◽  
Evaluation Method ◽  
Quality Criteria ◽  
User Testing ◽  
Web Based ◽  
Development Framework ◽  
Information And Communication ◽  
Important Quality ◽  
Effectiveness And Efficiency

E-government is an effort to utilize information and communication technology especially internet to improve public service quality which generally implemented in a web based application. Usability is one of the important quality criteria for the success of a web. In this study we developed a framework for evaluation of usability in e-government consisting of  eight stages: (1) determining the evaluation objectives, (2) determining the usability aspects, (3) determining the metrics usability, (4) selecting usability evaluation method candidates, (5) determining the required criteria of the method to be evaluated, (6) evaluating the method, (7) selecting and making the instrument, and (8) evaluate usability.. The results of the application of this framework in the case study of e-finance resulted in two methods used: user testing and questionnaires. The evaluation of usability in e-government for e-finance case studies using the proposed framework results in usability level of e-finance in terms of effectiveness, efficiency, and user satisfaction are 96%, 92%, and 70 respectively. Which can be identified to be grouped into 16 problems consisting of aspects of effectiveness and efficiency.

scholarly journals INTELLIGENT VOICE-BASED E-EDUCATION SYSTEM: A FRAMEWORK AND EVALUATION

2010 ◽  
pp. 327-334
Author(s):  
Ambrose Azeta ◽  
Charles K. Ayo ◽  
Aderemi Aaron Anthony Atayero ◽  
Nicholas Ikhu-Omoregbe
Keyword(s):  
Education System ◽  
User Satisfaction ◽  
Visually Impaired ◽  
Learning Objects ◽  
Usability Study ◽  
Web Based ◽  
System A ◽  
Autonomous Decision ◽  
E Learning ◽  
Phone Access

Voice-based web e-Education is a technology-supported learning paradigm that allows phone-access of learners to e-Learning web-based applications. These applications are designed mainly for the visually impaired. They are however lacking in attributes of adaptive and reusable learning objects, which are emerging requirements for applications in these domain. This paper presents a framework for developing intelligent voice-based applications in the context of e-Education. The framework presented supports intelligent components such as adaptation and recommendation services. A prototype Intelligent Voice-based E-Education System (iVEES) was developed and subjected to test by visually impaired users. A usability study was carried out using the International Standard Organization’s (ISO) 9241-11 specification to determine the level of effectiveness, efficiency and user satisfaction. Report of our findings shows that the application is of immense benefit, based on the system’s inherent capacity for taking autonomous decision that are capable of adapting to users’ requests.

scholarly journals A new user interface for a text proofreading web portal in a digitization and crowdsourcing context

2018 ◽  
Vol 14 (1) ◽  
pp. 107-122
Author(s):  
Pietro Murano
Keyword(s):  
User Interface ◽  
User Interfaces ◽  
User Satisfaction ◽  
Interface Design ◽  
Content Type ◽  
Task Time ◽  
Degree Of Control ◽  
Mass Digitization ◽  
Empirical Experiment ◽  
Satisfaction Measures

Purpose This paper aims to present a new user interface design for text proofreading portals in a digitization and crowdsourcing context. Several of the current proofreading portals lack usability in their user interfaces. The aim of the new design is to increase user performance and satisfaction. Design/methodology/approach An empirical experiment has been conducted to evaluate the new user interface as a comparison with 18thConnect – TypeWright proofreading portal. Two of the main measures involved times and errors and this approach is considered to be good for these kinds of measures allowing a good degree of control. Nevertheless, personal opinions are also very important and these are elicited by means of a post-experiment questionnaire. Findings The data were statistically analysed and overall the new user interface helped users to perform better in terms of task time. Errors were also better with the new user interface, but the differences were not statistically significant. Furthermore, users were more satisfied with the new user interface. User satisfaction measures were mostly statistically significant. Originality/value As far as has been ascertained, there have been no systematic studies evaluating a new design with an existing design of a proofreading portal. Therefore, this research is considered to be original, and if implemented widely, it would be very valuable to the mass digitization aims.

Using Interaction Design to Improve Usability of a PHR User Interface Based on Visual Elements

2009 ◽  
pp. 127-142
Author(s):  
Stefano Forti ◽  
Barbara Purin ◽  
Claudio Eccher
Keyword(s):  
User Interface ◽  
User Interfaces ◽  
User Satisfaction ◽  
Interaction Design ◽  
Personal Health Record ◽  
Evaluation Process ◽  
Visual Elements ◽  
Development Cycle ◽  
Semistructured Interviews

This chapter presents a case study of using interaction design methods for exploring and testing usability and user experience of a Personal Health Record (PHR) user interface based on visual and graphical elements. To identify problems and improve the design of PHR user interface we conducted two taskoriented usability testing based on the think-aloud technique for observing users during their interaction with a high-fidelity PHR prototype, and questionnaires and semistructured interviews for measuring user satisfaction. Our study demonstrates that a user-centered approach to interaction design involving the final users in an iterative design-evaluation process is important for exploring innovative user interfaces and for identification of problems in the early stages of the development cycle of a PHR.

Intelligent User Interfaces for Ubiquitous Computing

2009 ◽  
pp. 2627-2643
Author(s):  
Rainer Malaka
Keyword(s):  
Ubiquitous Computing ◽  
Mental Models ◽  
Design Process ◽  
User Interfaces ◽  
Real World ◽  
Embodied Interaction ◽  
Intelligent Interfaces ◽  
Intelligent User Interfaces ◽  
World Environment ◽  
Usability Criteria

Designing user interfaces for ubiquitous computing applications is a challenging task. In this chapter we discuss how to build intelligent interfaces. The foundations are usability criteria that are valid for all computer products. There are a number of established methods for the design process that can help to meet these goals. In particular participatory and iterative so-called human centered approaches are important for interfaces in ubiquitous computing. The question on how to make interfaces more intelligent is not trivial and there are multiple approaches to enhance either the intelligence of the system or that of the user. Novel interface approaches follow the idea of embodied interaction and put particular emphasis on the situated use of a system and the mental models humans develop in their real-world environment.

scholarly journals Spatial Metadata Usability Evaluation

2020 ◽  
Vol 9 (7) ◽  
pp. 463 ◽  
Author(s):  
Mohsen Kalantari ◽  
Syahrudin Syahrudin ◽  
Abbas Rajabifard ◽  
Hardi Subagyo ◽  
Hannah Hubbard
Keyword(s):  
Data Quality ◽  
User Interfaces ◽  
Spatial Data ◽  
Irrelevant Information ◽  
End Users ◽  
Data Discovery ◽  
Data Infrastructure ◽  
Critical Part ◽  
Efficiency And Effectiveness ◽  
Effectiveness And Efficiency

Spatial metadata is a critical part of any spatial data infrastructure, which enables the organising, sharing, discovery and use of spatial data. This paper highlights a knowledge gap in the usability of the metadata systems for the end–users. It then addresses the gap by applying the User Centred Design approach to investigate the usability of metadata records. The research engages with end–users concerning efficiency and effectiveness of metadata systems, and end–users’ satisfaction and expectations. The results indicate significant gaps with the effectiveness and efficiency of metadata systems for spatial data discovery and selection. Inconsistency and irrelevant information in the metadata records were found in the title, keywords, abstracts, data quality and other elements of the metadata. Additionally, essential improvements were identified for user interfaces. Discouraging presentation of the metadata is a prominent problem found in the interface of the metadata systems.

Web Usability

2005 ◽  
pp. 3074-3078
Author(s):  
Shirley Ann Becker
Keyword(s):  
User Interface ◽  
Human Computer Interaction ◽  
Interest Group ◽  
Personal Computer ◽  
User Interfaces ◽  
User Satisfaction ◽  
Ease Of Use ◽  
Human Interaction ◽  
Computing Machinery ◽  
Computer Interaction

The study of computing technology and user interfaces was initiated during the 1970s when industrial research laboratories began to focus on human-computer interaction (HCI) (Badre, 2002). In the 1980s, the personal computer was introduced, thus expanding the need for designing effective user interfaces. HCI became a discipline during this time, and the Association for Computing Machinery (ACM) established the Special Interest Group in Computer Human Interaction. One of the first textbooks on HCI, Designing the User Interface: Strategies for Effective Human-Computer Interaction (Schneiderman, 19891), was published. Shortly thereafter, HCI became part of the ACM curriculum promoting the development of effective user interfaces. Software tools were developed in order to assist in designing usable interfaces while employing usability engineering methods. Many of these methods focused on usability from the perspective of ease of use, ease of learning, user satisfaction, and zero defects (Nielsen, 1993).

Questionnaires to Inform a Usability Test Conducted on a CALL Dictionary Prototype

2013 ◽  
Vol 3 (3) ◽  
pp. 56-76 ◽  
Author(s):  
Marie-Josée Hamel
Keyword(s):  
Research And Development ◽  
Language Learners ◽  
User Satisfaction ◽  
Central Component ◽  
Usability Test ◽  
Double Function ◽  
Before And After ◽  
Development Context ◽  
Effectiveness And Efficiency ◽  
Insight Into

Questionnaires are often considered a suitable instrument to gather data on language learners’ experiences. To test the usability of an online dictionary prototype, a series of questionnaires were distributed to a class of language learners before and after they completed a language task at the computer using the dictionary prototype. Measures of task effectiveness and efficiency were obtained and correlated with the questionnaires’ results. This study shows how the questionnaire results informed the overall measure of usability and, in particular, addressed user satisfaction, a more subjective yet a central component of this measure. Pre-questionnaires prepared learners for the task, whereas post-questionnaires fostered a reflection about the task process and its outcome. Hence, it is argued that combining observation and questionnaire techniques in that context was effective in providing a fuller insight into the learner-task-tool interaction at the computer. In this CALL research and development context, questionnaires served a double function as an evaluative and a pedagogical instrument.

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