Browsing by Subject "Human-computer interaction"
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Item As we may build: the design & function of online virtual space(2010-11) Guynup, Stephen L.; Moulthrop, Stuart; University of Baltimore. School of Information Arts and Technologies; University of Baltimore. Doctor of Communications Design"There is no understanding of virtual space, only a loose collection of articles related to realism in rendering or behavior" - Lev Manovich, The Language of New Media. Manovich's statement echoes a largely unspoken truth, that there is no understanding of what we may build in virtual space. This dissertation is specifically for designers, the builders of virtual spaces. Virtual space is both world and interface. It is a visionary medium in need of practical guidance. The ideas presented here stand on a foundation of HCI/usability, film theory, and hints of game design.Item Effective mobile web design and development for JHU APL external website(2012-05) Ihm, Henry H.; Summers, Kathryn; University of Baltimore. School of Information Arts and Technologies; University of Baltimore. Master of Science in Information Design and Information ArchitectureDue to a global increase in smartphone ownership and an exploding use of wireless services, mobile phones have become an important means of Internet access. However, the constraints (e.g. small screen, weak network connections, etc.) of such mobile devices limit the usability of information browsing. This paper presents research on the existing constraints of mobile devices, user activities on such devices, mobile Web usability issues, methodologies for optimizing user interaction, best practices for mobile Web design/development, and design trends that can be applied to development of JHU APL mobile website. A user-based evaluation of the JHU APL mobile Web prototype used for the usability testing presents the mobile Web usability issues found during the testing procedures. The testing report suggests how the browsing usability can be improved through revisions based on the recommendations.Item A Human-Centered Evaluation of an ICT-Integrated College and Career Navigation Platform(2023-05) Janka, Bethany N.; Summers, Kathryn; Walsh, Greg; University of Baltimore. Yale Gordon College of Arts and Sciences; University of Baltimore. Master of Science in Interaction Design and Information ArchitectureIn light of the rising costs of postsecondary education, the overall economic disparity between college graduates and non-college graduates, and a rapidly evolving labor landscape, it is more important than ever that students receive the college and career guidance they need to make the best choices for their futures. Several factors have contributed to the growing need for and proliferation of information and communication technology-integrated career counseling. Yet, research remains limited on best practices for designing these digital tools. This project was conducted using a human-centered design framework to evaluate the user experience and efficacy of the college and career preparation platform BigFuture by College Board. I performed user experience research to evaluate how user friendly and effective the website was in helping high school students feel more ācareer ready.ā The research entailed user interviews and usability testing sessions with 11 high school students ranging from freshmen to seniors and a subsequent qualitative and quantitative analysis.Item Interaction Design and Activity Theory: designing for social code review(2010-12) Souza, Randy; Summers, Kathryn; University of Baltimore. School of Information Arts and Technologies; University of Baltimore. Master of Science in Information Design and Information ArchitectureThis thesis applies activity theory to interaction design of a code review tool. The purpose of this project was two-fold: To understand the practice of code review, and to gain insight into the value of activity theory as a framework for interaction design. Decades of research have shown that code reviews are a valuable software engineering tool. But recent studies suggest that many software development organizations do not use code reviews to their full potential. While code review is often acknowledged as a social practice, few studies address the social, cultural, and historical context surrounding programmers as they conduct reviews. This paper uses activity theory to analyze these contextual factors within a department in a commercial software development organization. Code review practice is found to be informal, highly situated, and multi-motivated. Based on these findings, interaction design concepts are proposed for a Web-based tool that supports collaborative construction, execution, and resolution of code reviews.Item The Influence Of Social Presence On E-Loyalty In Women Online Shoppers: An Application Of The Social Identity Approach To Website Design(2010) Coverdale, Tonjia Simmone; Wilbon, Anthony D.; Business and Management; Doctor of PhilosophyThe objective of this study is to propose and test the Social Identity Approach to Website Design research model, which extends the traditionally examined interaction between website design and e-Commerce Success by considering the role of Social Identity in the development of e-Loyalty in women online shoppers. The Social Identity Approach is a well-researched theoretical perspective in the field of social psychology that includes the Social Identity Theory (Tajfel, 1978) and the Self-Categorization Theory (Turner et al., 1987). The methodology applied an experimental, quantitative, and qualitative approach through the creation of a functioning e-Commerce boutique using theory-based website design. Using an online survey instrument comprised of existing Information Systems and Social Identity measures, data were collected from 322 women online shoppers who were members of the salient ingroup. Data analysis was conducted using Structural Equation Modeling techniques via AMOS 18. The results of this study indicate that, in women online shoppers, the perception of social presence in an online retail store positively influences their enjoyment of the online shopping experience. The results also suggest that women online shoppers' enjoyment of an online shopping experience positively influences their intention to revisit the website or recommend the website to other online shoppers, which are e-Loyal behaviors. Although the moderating effect of Social Identity on the relationship between social presence and enjoyment was not found to be statistically significant, qualitative data analysis suggests that Social Identity is an underlying factor in the overall interaction between Social Presence, Enjoyment, and e-Loyalty, prompting the suggestion of future research to determine the specific relationship. This multidisciplinary study contributes to literature in Information Systems, Social Psychology, Marketing, Media/Communications, Gender Studies, and Entrepreneurship. Specifically, the results support those of previous studies related to gender-based and culture-based perceptions of website quality and e-Loyalty. In addition, this study extends related studies by proposing and testing the psychographic nature of human-computer interaction as a possible catalyst for e-Commerce Success.Item Thumb-Based Approaches to Target Acquisition, Zooming, and Text Entry in Single-Handed Interaction with Mobile Phones(2016-01-01) Lai, Jianwei; Zhang, Dongsong; Information Systems; Information SystemsSingle-handed interaction with mobile handheld devices is often desired yet challenging and problematic, especially for users with situational impairments or upper limb disabilities. In this dissertations, three novel thumb-based techniques were designed, developed, and evaluated to address three challenges in single-handed interaction with touch-screen mobile phones, including target acquisition, zooming, and text entry. First, we proposed and developed ExtendedThumb to address the target acquisition problem caused by limited thumb accessibility in single-handed interaction with mobile phones. An empirical user evaluation of ExtendedThumb and two baseline target acquisition techniques, including direct touch and MagStick, was conducted. ExtendedThumb significantly outperforms MagStick in target acquisition speed, perceived ease of use, perceived effectiveness, and overall satisfaction, while achieving a similar level of accuracy. ExtendedThumb also achieves significantly higher performance in user perception than direct touch. Second, ContextZoom was proposed and implemented for single-handed zooming on touch-screen mobile devices. It works as an add-on feature for other existing zooming techniques by supporting zooming in/out a portion of a viewport. The results of an empirical evaluation show that equipped with ContextZoom, users' performances with the Google Maps' single-handed zooming technique and the button-based zooming technique in partial viewport zooming were improved significantly in terms of task completion time and number of discrete actions. Participants also reported higher levels of perceived effectiveness and overall satisfaction with ContextZoom than without ContextZoom while using the Google Maps' single-handed zooming technique, and reported a similar level of perceived ease of use. Third, ThumbStroke was developed to support both single-handed and sight-free text entry. The keyboard allows users to enter text by making strokes with a thumb in any area on a touch screen where they feel comfortable. We evaluated ThumbStroke through a longitudinal lab experiment including 20 sessions with 13 participants, in which participants typed phrases with the ThumbStroke, Escape and QWERTY keyboards. ThumbStroke shows advantages in typing accuracy and user perception in comparison to the other two keyboards and results in faster typing speed than QWRTY in the sight-free condition. The findings of this dissertations provide both research and practical insights for single-handed and sight-free interaction with mobile devices.