scholarly journals User-centered design of power tools: a generic process for evaluation of usability aspects

Author(s):  
Sebastian Helmstetter ◽  
Matthias Dörr ◽  
René Germann ◽  
Sven Matthiesen

AbstractUser-centered design focuses on the individual needs of the product users. The aim is to adjust the design of the product according to the requirements of the user and application. Existing methods for evaluation of the perceived usability are often limited to one specific aspect, and it requires a high effort to transfer the respective method to other aspects. A generic process for the evaluation of the perceived usability is missing. This paper presents the generic Usability Study Evaluation Process (USE-Process) that helps product designers to identify and evaluate usability aspects relevant to the suitability of the usage of a product. The process is divided into three sections:1. A structured field study to identify the relevant usability aspects;2. A generic study design for the subjective evaluation of usability aspects under objective and reproducible conditions;3. The use of measurement tools that help to quantify the results of the subjective evaluation.The generic applicability of the process is shown by the example of the evaluation of cordless screwdrivers; several usability aspects were identified, clustered, and evaluated by using subjective evaluation methods and measurement techniques.

Author(s):  
Deana McDonagh ◽  
Kayla Arquines ◽  
Elizabeth T. Hsiao-Wecksler ◽  
Mahshid Mansouri ◽  
Girish Krishnan ◽  
...  

Abstract User-centered design relies upon the appreciation that assistive technology device solutions need to include the functional and supra-functional (e.g., emotional, social, cultural) needs of users. Developing solutions without basing decision-making on both quantitative (functional) and qualitative (supra-functional) needs can lead to imbalanced devices, services, and/or environments. Satisfying both functional and supra-functional needs is the foundation of user-centered design, which in itself relies upon empathic understanding of the person that one is aiming to serve. This paper presents a study of the lived experiences of people living with Amyotrophic Lateral Sclerosis, their caregivers, and members of the healthcare management team from a human-centered perspective in the pursuit of pain points, deeper understanding of the emotional needs, and revelation of opportunities for improving quality of life and human experience through more user-centered design. We focus on user-centered design-thinking research tools (e.g., mood boards, journey maps, personas) to (a) understand the authentic experience of the individual in their vernacular and their terminology, and (b) to support a data rich conversation that focuses upon both functional and supra-functional needs to highlight opportunities for design interventions).


Author(s):  
Jayde King ◽  
John Kleber ◽  
Ashlee Harris ◽  
Barbara Chaparro ◽  
Beth Blickensderfer

General Aviation flight operations have been negatively affected by the slow decreasing weather related accident rate for the last 20 years. Upon further investigation, research suggests, that poor preflight planning and a lack of aviation weather experience and knowledge may be contributing factors to the stagnant weather related accident rate. Our team developed a Preflight Weather Decision Support Tool (PWDST) to help novice pilots access, interpret, and apply weather information. We used a user-centered design process which involved an initial task analysis, low-fidelity prototyping, low-fidelity usability testing, user interviews and expert review. This study assessed and compared the perceived usability, difficulty, and the system assistance satisfaction of the PWDST. Participants (n=9) completed a usability study and a series of surveys during, as well as, after the completion of the preflight planning scenario. A series of Mann-Whitney U Tests were conducted to compare the difference between Private Pilot and Certified Flight Instructors (CFI) perceived usability, difficulty, and system assistance satisfaction ratings. Results indicated, there were no significant differences between group ratings. Overall, both groups reported above average usability, system assistance and low difficulty rating for the PWDST. Future research and possible implications are discussed.


Author(s):  
Γεωργία Παναγιώτου ◽  
Δημήτρης Αγοραστός

The present study has two aims: First it summarizes current theory and research on the association between self-consciousness/self-focused attention and different aspects of emotions in both typical and clinical populations. Second, it presents some new findings which address this association. As described in the literature, in the process of achieving one’s goals the individual compares oneself with standards and regulates one’s behavior, making behavioral adjustments or changing the goal in order to minimize the difference between one’s current status and one’s goals. During this self-evaluation process, which is an inherent part of self-regulation, attention is focused on the self and can be related to either positive or negative emotions depending on the subjective evaluation regarding the likelihood of achieving one’s goals. In psychopathology this process seems to dysfunction, so that the individual is trapped in a vicious cycle of negative emotion and increased self-focused attention/selfconsciousness. Research suggests that specific emotions, or their dimensions are associated with increased self-focused attention but it remains unclear which these dimensions are and how are related to psychopathology. Τhe findings we present attempt to separate the effects of the basic affective dimensions of valence, arousal and dominance on increased self-focused attention.


Author(s):  
Chelsea Kramer ◽  
Shelley Kelsey ◽  
Christina Rudin-Brown ◽  
Robin Langerak ◽  
Andrea Scipione ◽  
...  

Child Restraint Systems (CRS; car seats) are designed to prevent injuries in motor vehicle collisions. CRS misuse and installation errors are common and may seriously reduce or nullify safety benefits. Poorly designed labels and instructions contribute to CRS misuse, and CRS manufacturers are not held to an evidence-based label design standard. This paper describes a user-centered design (UCD) and evaluation process for infant/child convertible (rear-facing/forward-facing) CRS installation labels. The labels focused on two primary tasks: installing a CRS into a vehicle and securing a child into the CRS. The label design concepts were based on literature identifying primary areas for CRS misuse, Human Factors and UCD principles, product warning and label design standards, and current Canadian and US motor vehicle safety standards. A follow-up study will evaluate the reduction of CRS installation errors based on the hypothesized enhanced label usability and effectiveness.


2021 ◽  
pp. 1-15
Author(s):  
Janne Berg ◽  
Jenny Lindholm ◽  
Joachim Högväg

Civic technology is used to improve not only policies, but to reinforce politics and has the potential to strengthen democracy. A search for new ways of involving citizens in decision-making processes combined with a growing smartphone penetration rate has generated expectations around smartphones as democratic tools. However, if civic applications do not meet citizens’ expectations and function poorly, they might remain unused and fail to increase interest in public issues. Therefore, there is a need to apply a citizen’s perspective on civic technology. The aim of this study is to gain knowledge about how citizens’ wishes and needs can be included in the design and evaluation process of a civic application. The study has an explorative approach and uses mixed methods. We analyze which democratic criteria citizens emphasize in a user-centered design process of a civic application by conducting focus groups and interviews. Moreover, a laboratory usability study measures how well two democratic criteria, inclusiveness and publicity, are met in an application. The results show that citizens do emphasize democratic criteria when participating in the design of a civic application. A user-centered design process will increase the likelihood of a usable application and can help fulfill the democratic criteria designers aim for.


10.2196/11473 ◽  
2018 ◽  
Vol 5 (4) ◽  
pp. e11473 ◽  
Author(s):  
Mahsa Honary ◽  
Naomi Ruth Fisher ◽  
Roisin McNaney ◽  
Fiona Lobban

BackgroundRelatives of people experiencing bipolar mood episodes or psychosis face a multitude of challenges (eg, social isolation, limited coping strategies, and issues with maintaining relationships). Despite this, there is limited informational and emotional support for people who find themselves in supporting or caring roles. Digital technologies provide us with an opportunity to offer accessible tools, which can be used flexibly to provide evidence-based information and support, allowing relatives to build their understanding of mental health problems and learn from others who have similar experiences. However, to design tools that are useful to relatives, we first need to understand their needs.ObjectiveThe aim of this study was to use a user-centered design approach to develop an accessible Web-based intervention, based on the Relatives Education And Coping Toolkit (REACT) booklet, to support the informational and emotional needs of relatives of people experiencing psychosis or bipolar disorder.MethodsWe engaged relatives of people with experiences of bipolar disorder or psychosis in workshops to identify their needs and design requirements for developing a Web-based version of a paper-based toolkit. We used a 2-phase qualitative approach to explore relatives’ views on content, design, and functionalities, which are considered to be engaging and useful in a Web-based intervention. In phase 1, we consulted 24 relatives in 2 workshops to better understand their existing support infrastructure, their barriers for accessing support, unmet needs, and relatives’ views on online support. On the basis of the results of these workshops, we developed a set of design considerations to be explored in a smaller workshop. Workshop 3 then involved working with 2 digitally literate relatives to design a usable and acceptable interface for our Web-based toolkit. Finally, in phase 2, we conducted a heuristic evaluation to assess the usability of the toolkit.ResultsOur findings indicated that relatives require technologies that (1) they can place their trust in, particularly when discussing a highly sensitive topic, (2) enable learning from the lived experiences of others while retaining confidentiality, and (3) they can work through at their own pace in a personalized manner.ConclusionsOur study highlights the need for providing a trustworthy, supportive tool where relatives can engage with people who have similar experiences to their own. Our heuristic evaluation showed promise in terms of perceived usability of the REACT Web-based intervention. Through this work, we emphasize the need to involve stakeholders with various characteristics, including users with limited computer literacy or experience in online support.


2015 ◽  
Vol 77 (19) ◽  
Author(s):  
Azilawati Rozaimee ◽  
Wan Malini Wan Isa ◽  
Nazirah Abd Hamid ◽  
Siti Dhalila Mohd Satar ◽  
Normala Rahim ◽  
...  

With the emergence of the learning materials volume, the developer has to face many challenges to develop an effective and efficient application to support the learning process. The objective of this study is to evaluate usability of Virtual Umrah application based on expert views using User-Centered Design approach. User-Centered Design is a multi-stages process that requires the designers to analyze and verify the requirement of a user by involving the user throughout the whole processes. The findings of the usability evaluations are for errors, efficiency and satisfaction level, the individual mean score is 4.00, 4.20 and 4.40. While for the memorability and learnability component, the mean score for the items are below than 4.00 which are 3.80 and 3.70 respectively. These findings demonstrate that the developed application is significantly needed by the pilgrims and individuals in order to assist them in preparation and performing Umrah.


2018 ◽  
Author(s):  
Mahsa Honary ◽  
Naomi Ruth Fisher ◽  
Roisin McNaney ◽  
Fiona Lobban

BACKGROUND Relatives of people experiencing bipolar mood episodes or psychosis face a multitude of challenges (eg, social isolation, limited coping strategies, and issues with maintaining relationships). Despite this, there is limited informational and emotional support for people who find themselves in supporting or caring roles. Digital technologies provide us with an opportunity to offer accessible tools, which can be used flexibly to provide evidence-based information and support, allowing relatives to build their understanding of mental health problems and learn from others who have similar experiences. However, to design tools that are useful to relatives, we first need to understand their needs. OBJECTIVE The aim of this study was to use a user-centered design approach to develop an accessible Web-based intervention, based on the Relatives Education And Coping Toolkit (REACT) booklet, to support the informational and emotional needs of relatives of people experiencing psychosis or bipolar disorder. METHODS We engaged relatives of people with experiences of bipolar disorder or psychosis in workshops to identify their needs and design requirements for developing a Web-based version of a paper-based toolkit. We used a 2-phase qualitative approach to explore relatives’ views on content, design, and functionalities, which are considered to be engaging and useful in a Web-based intervention. In phase 1, we consulted 24 relatives in 2 workshops to better understand their existing support infrastructure, their barriers for accessing support, unmet needs, and relatives’ views on online support. On the basis of the results of these workshops, we developed a set of design considerations to be explored in a smaller workshop. Workshop 3 then involved working with 2 digitally literate relatives to design a usable and acceptable interface for our Web-based toolkit. Finally, in phase 2, we conducted a heuristic evaluation to assess the usability of the toolkit. RESULTS Our findings indicated that relatives require technologies that (1) they can place their trust in, particularly when discussing a highly sensitive topic, (2) enable learning from the lived experiences of others while retaining confidentiality, and (3) they can work through at their own pace in a personalized manner. CONCLUSIONS Our study highlights the need for providing a trustworthy, supportive tool where relatives can engage with people who have similar experiences to their own. Our heuristic evaluation showed promise in terms of perceived usability of the REACT Web-based intervention. Through this work, we emphasize the need to involve stakeholders with various characteristics, including users with limited computer literacy or experience in online support.


2021 ◽  
Vol 6 (2) ◽  
pp. 134-144
Author(s):  
Fardiansyah ◽  
Anhar Pulungan ◽  
Ridha Sitorus ◽  
Muharratul Mina Rizky

The utilization of digital technology produces efficiency, effectiveness and accountability that can support the UMKM (Usaha Mikro, Kecil, Menengah) so that the Regional Government (PEMDA) in this case the Koperasi and UKM Office of South Aceh agency can contribute in providing services and education for UMKM which are expected to be able to improve productivity and profit of UMKM in their region. To using of the UCD (User Centered Design) model involves the user in the development process. This study focuses on the implementation of the use of the UCD development model after going through the evaluation process of the user context, analysis and design of solutions based on recommendations from users.  Based on the evaluation results, it is known that the implementation of UCD method to the system have a good response from users.


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