Stephanie Ludi’s research while affiliated with University of North Texas and other places

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Publications (87)


Education Application Usability Assessments: Comparison Between Blackboard and Canvas Based on App Reviews
  • Conference Paper

November 2023

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30 Reads

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1 Citation

Shabbab Algamdi

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Stephanie Ludi

Overview of Assets 2022

October 2023

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8 Reads

ACM SIGACCESS Accessibility and Computing

The 24th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2022), was held in Athens, Greece between October 23rd to 26th, 2022. ASSETS continues to be the premier computing research conference exploring the design, evaluation, and use of computing and information technologies with and for people with disabilities and older adults. ASSETS 2022 was held in-person for the first time since 2019. Due to the continuing COVID-19 pandemic, a lightweight online component for virtual conference attendees was conducted as well. In order to support both accessibility and inclusivity, and balancing technical infrastructure and time-zone constraints, all presentations were also pre-recorded and captioned to support both virtual and in-person conference attendees. There were additional creative opportunities for hybrid connections and socializing across modalities, including online trivia and roundtable social networking events. We acknowledge that future ASSETS organizing committees will need to make their own decisions about the length and format of the conference, and so the decision to have an in-person with light-weight online component is not a permanent decision. Overall, ASSETS 2022 had 161 in-person and 146 virtual attendees from 38 countries and 6 continents. For the first time, we hosted 5 virtual workshops, with 94 workshop-only attendees.


Impact of Usability Heuristics on User Satisfaction Among Coding Apps for Children
  • Conference Paper
  • Full-text available

October 2023

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47 Reads

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2 Citations

Download



Fig. 1: Students arrangement in the classroom.
Do the Test Smells Assertion Roulette and Eager Test Impact Students’ Troubleshooting and Debugging Capabilities?

May 2023

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37 Reads

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8 Citations






Citations (57)


... Stack Overflow datasets are a particular source of information that has gained popularity in numerous research studies owing to their comprehensive coverage of technical and practical programmer issues and concerns. For example, Alghamdi et al [2] examined 5,092 Stack Overflow posts to identify developers' challenges with web accessibility guidelines. The findings revealed that about 60% of the discussions on the perceivable guideline focused on customizing time-based media and screen reader accessibility. ...

Reference:

Understanding developer challenges and trends in web accessibility: a stack overflow analysis
Accessibility Guidelines and Standards: Analyzing Stack Overflow Posts
  • Citing Conference Paper
  • October 2024

... Usability questions were based on Jakob Nielsen's 10 HCI heuristics [11]. We selected this framework based on its relevance in other studies analyzing the usability of educational applications for children, including IDEs [16], [35]. Prior to conducting the interviews and thematic analysis, the researchers familiarized themselves with Nielsen's heuristics and their applications [36]. ...

Impact of Usability Heuristics on User Satisfaction Among Coding Apps for Children

... However, assertion methods can also negatively impact code quality. Specifically, the test smell Assertion Roulette, where a test method contains multiple assertions without providing context for failures [10], is associated with increased change-proneness in test code [11], [12] and challenges in code comprehension [13]. These problems cannot be addressed without a stronger understanding of assertion messages, including how they are used and how they support comprehension. ...

Do the Test Smells Assertion Roulette and Eager Test Impact Students’ Troubleshooting and Debugging Capabilities?

... Login plays a critical role in Android apps, typically representing the first point of interaction between the application and the users [1]. Issues in login processes can significantly degrade the user experience [2]- [5]. ...

Investigating the User Experience and Evaluating Usability Issues in AI-Enabled Learning Mobile Apps: An Analysis of User Reviews

International Journal of Advanced Computer Science and Applications

... The author in [62] outlined the essential features and functionalities that should be incorporated into smartphone applications designed for those who are DHH, including vibrating alerts, visual notifications, and customizable volume control. We considered suggestions in [63,64] as a framework for the development of the AsEar app, adopting concepts that align with the app's objectives and cater to the needs of DHH clients, including button size, text size, usability, real-time communication, and privacy. ...

The State of Accessibility in Blackboard: Survey and User Reviews Case Study

... Hearing impairments, for instance, pose significant communication barriers. Traditional and online classrooms often rely heavily on auditory instruction, leaving students with hearing impairments struggling to access information and fully engage in discussions [7]. The lack of consistent availability and integration of assistive technologies, such as real-time captioning, further exacerbates these challenges, leading to feelings of isolation and exclusion from classroom interactions critical for learning and social development. ...

Teachers Perspectives on Transition to Online Teaching Deaf and Hard-of-Hearing Students during the COVID-19 Pandemic: A Case Study

... Various approaches to teaching accessibility in computing education have been documented. Exclusive courses on accessibility and assistive technology [19,23,36], and the inclusion of accessibility topics in existing courses such as web development [14,29,38], software engineering [12,21,30], programming fundamentals [11,15], artificial intelligence [35], and mobile app development [10] have been employed. These courses aim to teach accessibility awareness, technical knowledge such as the web content accessibility guidelines (WCAG) [2], empathy, and awareness about careers in the field of accessibility largely through traditional lecture-based pedagogy. ...

Exploration on Integrating Accessibility into an AI Course

... Blocks are unique visual elements that symbolize specific programming constructs and vary in shape and color according to their functions [4]. There are primarily two categories of blocks based on their structure: container blocks and non-container blocks. ...

Accessible Blockly: An Accessible Block-Based Programming Library for People with Visual Impairments
  • Citing Conference Paper
  • October 2022

... Finally, future research on Parsons problems should explore paradigms such as Grid-Coding, speech-driven programming, and the use of problem-solving stages to improve accessibility for neurodiverse programmers, sighted, blind, and low-vision (BLV) programmers, and programmers with motor impairments [15,43]. ...

Voice-Enabled Blockly: Usability Impressions of a Speech-driven Block-based Programming System
  • Citing Conference Paper
  • October 2022

... Accessibility in digital environments refers to designing and developing products, services, and content that can be perceived, understood, and operated by a wide range of users, regardless of their physical, intellectual, or cognitive abilities [7,23,33]. Despite the widespread accessibility adoption in web applications over the years, studies have shown that most web applications still present many accessibility violations. 1 Accordingly, some researchers surveyed people involved in software development and identified many barriers to the adoption of accessibility during the development process: lack of awareness or knowledge, lack of time and support from high-level management, lack of accessibility requirements, and lack of understanding of accessibility standards and guidelines [9,14,18,25,28]. Most barriers are related to the development process or individual perspectives, leaving a gap in the technical challenges developers find when they try to incorporate accessibility into their design. ...

Comparative Analysis of Accessibility Testing Tools and Their Limitations in RIAs
  • Citing Chapter
  • October 2022

Lecture Notes in Computer Science