Design Of User Research Articles

Redesign of Coffee Enema Basket Using DFMA for Improved Efficiency

The general background highlights the growing popularity of coffee enemas, necessitating improvements in product design for better usability and economic viability. The specific background addresses inefficiencies in existing enema basket designs, which often lack user-friendly features. The knowledge gap identified is the absence of systematic approaches to optimize both manufacturing and assembly processes for this product category. The aim of the research is to develop a more efficient and safer design by employing the DFMA methodology. Results indicate that the new design not only reduces the number of components by two but also achieves a 36% improvement in assembly time and a 13% reduction in assembly costs. The novelty of this study lies in the integration of additional safety features while maintaining component efficiency, enabling multiple uses through a removable filter design. The implications suggest that adopting DFMA in product development can significantly enhance both economic and functional aspects, providing a model for future designs in consumer health products. Further research is recommended to incorporate Quality Function Deployment (QFD) for gathering consumer feedback to refine the design according to user preferences. Highlights: The study uses DFMA to enhance the efficiency and safety of coffee enema baskets. The new design reduces assembly time by 36% and costs by 13%. Incorporation of safety features and a removable filter for multiple uses addresses existing usability issues. Keywords: Coffee Enema, DFMA, Product Design, User Safety, Assembly Efficiency

Initiating and integrating user-centred design in upgrading the e-learning layout: a case study on FlexLearn (Brightspace) 2.0 template

PurposeThe purpose of this paper is to articulate how the user experience (UX) approach was initiated and integrated into the centre’s scope of operations with the objective of improving the e-learning layout on the D2L learning management system (LMS). One of the most effective ways to collect user feedback has historically been to evaluate user interfaces using strategies from user testing. The integration of a UX approach by the Centre for ODL Experiences (COLE) at Wawasan Open University has led to a more user-oriented design of FlexLearn by conducting user testing on students as the target users of the platform and gathering course leaders’ (CLs) feedback after the presentation of the new template.Design/methodology/approachSince the process of design and development is a looping process, the first user testing methods employed were observation and interviews, which were conducted over the course of numerous sessions. The data collection used a mixed-methods approach, combining quantitative demographic and background data with qualitative feedback from open-ended questions and real-time interview responses. A standardized questionnaire gathered demographic information, while questions for feedback forms and interviews were adjusted based on specific tasks to explore usability and user interactions comprehensively.FindingsThe findings revealed overall positive feedback, with some concerns highlighted by the students who claimed to have trouble navigating the courses during the initial prototype. In addition to the qualitative data from the user testing session, a quantitative method based on an online questionnaire was also utilised for the CLs after the presentation of the final layout. Positive responses were received from the CLs, and constructive suggestions were considered for FlexLearn 3.0.Research limitations/implicationsThis paper is among the first that articulates the process of initiating and integrating user-centred design in an effort to improve the user experience of online and ODL platforms and LMSs. It will contribute to a dialogue on investigating and prioritising learners’ ODL experiences to ensure education equity across all levels or categories of students, which aligns with the United Nations Sustainable Development Goals.Practical implicationsThe integration of UX and user testing allows us to better identify what users like, their concerns and their needs. We gain important input on how easy or difficult it is to use the system, move around it and how much they enjoy using it. This feedback helps us make changes to the design so that the final product is more in line with what users want. It also allows us to discover problems before they become major, saving time and effort later on. Finally, integrating user input improves the LMS, delivering a more fun and successful learning experience for everyone.Social implicationsUser-friendly systems arise as institutions prioritise user-centred design, breaking down barriers for various learners. This develops an innovative culture, improving present learning experiences and setting a precedent for future generations. The emphasis on user demands helps to create a more accessible, adaptive and egalitarian educational landscape by connecting education with current technological trends. As education becomes more inclusive, the broader community benefits, emphasising the beneficial social impact of LMS user testing.Originality/valueBy articulating the process of integrating user testing on an LMS/e-learning prototype, helps us understand what users like, where they face problems and what needs improvement. By involving users in testing, we get valuable feedback on how easy it is to use the system, navigate around and overall, how much they enjoy using it. Case studies like this also offer universities concrete examples of real-world challenges and successes.

Sense of agency at a gaze-contingent display with jittery temporal delay.

Inconsistent jittery temporal delays between action and subsequent feedback, prevalent in network-based human-computer interaction (HCI), have been insufficiently explored, particularly regarding their impact on the sense of agency (SoA). This study investigates the SoA in the context of eye-gaze HCI under jittery delay conditions. Participants performed a visual search for Chinese characters using a biresolutional gaze-contingent display, which displayed a high-resolution image in the central vision and a low-resolution in the periphery. We manipulated the delay between eye movements and display updates using a truncated normal distribution (μ to μ + 2 σ) with μ ranging from 0 to 400 ms and σ fixed at 50 ms. Playback of recorded gaze data provided a non-controllable condition. The study revealed that both reported authorship and controllability scores, as well as the fixation count per second, decreased as μ increased, aligning with trends observed under constant delay conditions. The subjective authorship weakened significantly at a μ of 94 ms. Notably, the comparison between jittery and constant delays indicated the minimum value (μ) of the distribution as a critical parameter influencing both authorship perception and visual search time efficiency. This finding underscores the importance of the shortest delay in modulating SoA. Further examining the relative distribution for fixation duration and saccade amplitude suggests an adaptation in action planning and attention distribution in response to delay. By providing a systematic examination of the statistical attributes of jittery delays that most significantly affect SoA, this research offers valuable implications for the design of efficient, delay-tolerant eye-gaze HCI, expanding our understanding of SoA in technologically mediated interactions. Moreover, our findings highlight the significance of considering both constant and variable delay impacts in HCI usability design, marking a novel contribution to the field.

The public attitude towards ChatGPT on reddit: A study based on unsupervised learning from sentiment analysis and topic modeling.

ChatGPT has demonstrated impressive abilities and impacted various aspects of human society since its creation, gaining widespread attention from different social spheres. This study aims to comprehensively assess public perception of ChatGPT on Reddit. The dataset was collected via Reddit, a social media platform, and includes 23,733 posts and comments related to ChatGPT. Firstly, to examine public attitudes, this study conducts content analysis utilizing topic modeling with the Latent Dirichlet Allocation (LDA) algorithm to extract pertinent topics. Furthermore, sentiment analysis categorizes user posts and comments as positive, negative, or neutral using Textblob and Vader in natural language processing. The result of topic modeling shows that seven topics regarding ChatGPT are identified, which can be grouped into three themes: user perception, technical methods, and impacts on society. Results from the sentiment analysis show that 61.6% of the posts and comments hold favorable opinions on ChatGPT. They emphasize ChatGPT's ability to prompt and engage in natural conversations with users, without relying on complex natural language processing. It provides suggestions for ChatGPT developers to enhance its usability design and functionality. Meanwhile, stakeholders, including users, should comprehend the advantages and disadvantages of ChatGPT in human society to promote ethical and regulated implementation of the system.

ANALISA DESIGN UI/UX POINT OF SALES BERBASIS WEB PADA RAJA SAMUDRA POPOK MENGGUNAKAN METODE DESIGN THINKING

Point Of Sale is a system for transactions, which includes the use of a cash register. Within the scope of POS, a cash register does not stand alone but includes supporting software and other devices. The Point of Sales application will help business owners to achieve goals and improve service to consumers. The time needed to serve consumers during sales transactions becomes faster and the information provided becomes more accurate. At Raja Samudra Popok, transactions and recording are still done manually with ledgers, including stock of raw materials which is still recorded using Microsoft Excel, which means the data is not always accurate. This research uses a user-oriented Design Thinking method. This method has 5 process stages, namely Emphatize, Define, Ideate, Prototype, and Testing. After carrying out these 5 stages well, the author then carried out usability testing using the System Usability Scale (SUS) method which resulted in an average score of 85. Based on the results of the SUS score interpretation, this value was included in grade A where the score obtained was already in above the average SUS score in general, which is 68.

Perception of medical specialists on the usability of a dengue mobile application in rural areas: a qualitative study

Introduction. Mobile applications represent a promising alternative for providing support in the management of Dengue patients. However, the usability of these tools in Peru is unknown. Objectives. To evaluate the usability and usage recommendations of the Dengue ONQOY application in managing Dengue patients in rural areas of Peru. Methods. A qualitative study was conducted, which included semi-structured interviews with 8 experts in Dengue management. Data were coded using Atlas. Ti software. Three categories were assessed: (1) informative usability (2) design usability, and (3) recommendations for improvement. Results. Three key aspects were highlighted. (1) The application is perceived as valuable for first- level doctors in peripheral areas with limited Dengue experience due to its personalized approachand academic value. (2) Its ease of use and practicality were emphasized, although connectivity limitations in some areas were noted. (3) Recommendations for improvement included the inclusion of differential diagnoses, additional risk factors, updated references, hydration guidelines, and medication dosages. Conclusions. Dengue ONQOY is considered highly usable by doctors treating Dengue cases at the primary care level in Peru. Despite connectivity limitations and potential design improvements, its development and implementation offer a promising alternative for managing Dengue patients in the country in this field.

Development of Smart Link Book as a Medium for Interaction Between Special School Institutions and Parents Through User Centered Design

By redesigning linking books, this study seeks to enhance the user-communication experience (UX) between school-aged children with special needs (SLB) and their parents. Understanding special education pupils’ growth, needs, and progress depends heavily on effective parent-school communication. Current link books, however, frequently fall short in terms of providing information in a user-friendly and inclusive manner. This research employs a user-oriented design approach to comprehend the requirements and preferences of parents and special education students. We found possible issues in the current bridge books through content analysis and engagement methods. The findings of this study will be used to guide the redesign of link books so that they are more user-friendly and available to everyone. The creation of a new linking book prototype involved the application of iterative design techniques. This prototype includes design components like inclusive language, understandable graphics, and improved accessibility features. Then, to gauge reactions and identify areas for development, this prototype was tested with the help of parents of SLB students and the students themselves. It is intended that the findings of this study would help those who create connecting books for special schools and other educational institutions that wish to enhance communication with special needs student groups. Better design will allow us to establish more efficient lines of communication between parents and schools, enhancing parental support for the academic growth of special education kids.

How to Assess the Usability of Virtual Reality (VR) systems for Implementation in Product Development Processes

In modern product development, software tools have become indispensable. CAD-supported design or calculations using FEM software are commonplace. Since around 2016, HMD based virtual reality (VR), has been pushing its way into development departments.Especially with new software tools like VR, it is important to take a close look at usability. Only with usable software tools is it possible to work efficiently and reduce usage barriers (such as lack of acceptance by employees). VR in particular poses a challenge, as there are no standardized input devices for controlling the software. In addition, VR software dialogs are explicitly excluded in existing usability guidelines. This paper is intended to be the starting point for the development of a framework for the usability design of VR software systems.First, the existing literature is systematically classified using keywords. The most significant publications are thoroughly analyzed to clearly identify gaps in the research landscape. Second, existing guidelines such as ISO 9142 are examined and analyzed. Gaps and problems in the usage of these guidelines in the field of VR are identified. Subsequently, possible solutions and recommendations for the development of a VR-specific guideline are presented.

Seeing is believing: Climate change graph design and user judgments of credibility, usability, and risk

Abstract Psychological science can be used to inform climate science graph design, resulting in more meaningful and useful graphs for communication, especially with non-scientists. In this study, we redesigned graphs from the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report (AR5) and compared participant attention and perceptions between original and novel designs with pre-/post-surveys, eye-tracking, graph usability and ranking activities, and interviews. Participants were selected for lower content knowledge and risk perception of climate from a sample of undergraduate students in the southeastern U.S. Here, we demonstrate our robust graph redesign process and the associated impacts on participants’ perceptions of graph usability, graph and scientist credibility, and risk associated with climate change. These findings indicate that interacting with climate change graphs may impact perceptions that are relevant to individuals’ motivation to take action to address climate change across political audiences, and possibly even more so among self-identified Conservatives. Additionally, participants who viewed graphs designed to align with research-informed best practices had greater increases in perceptions of climate scientist credibility and climate change risk, though these contrasts were not statistically significant (p > 0.05). Participants rated redesigned graphs as being more trustworthy, which is critical to successful climate change communication, and our qualitative results provide a possible explanation and initial points of exploration for future research.

L3 Vehicles are becoming a Reality: Important Human Factors Consideration for the Viability of Conditional Automation

As of early 2023, only a limited number of Society of Automotive Engineers (SAE) Level 3 (L3) automated driving systems are available on the market, and they are primarily offered by luxury vehicle brands. SAE L3 automated driving systems are classified as conditional automation (CA), meaning that the vehicle can undertake some well-defined driving tasks under specific conditions, but the driver must be ready to assume control of the vehicle when prompted by the system. It is anticipated that an increasing number of L3 CA systems will be introduced on public roads in the next few years. However, L3 systems pose unique Human Factors (HF) challenges that require thoughtful consideration to ensure that production systems are feasible without compromising driver or road safety. This panel discussion brings together HF researchers and practitioners with expertise in human behavior and usability design for automotive applications to discuss and delineate key issues specifically related to L3 systems, as well as potential approaches to tackle these issues.

Usability Evaluation of Co-Pilot Screen Based on Fuzzy Comprehensive Evaluation Method

In this study, the usability evaluation model is constructed for a co-pilot screen, and an analysis of the impact factors and optimization recommendations is made based on the evaluation results. Firstly, based on the usability design principles, interaction ease, interaction efficiency, visual comfort, driving safety, and their corresponding secondary indicators are defined, and the subjective weight of each indicator is determined using the analytic hierarchy process (AHP). Then, usability evaluation is carried out on four vehicles via vehicle driving simulated experiments and driving experiments on the road, and the objective weight of the indicators is determined using the CRITIC method. Finally, the usability evaluation model for co-pilot screens is established by applying the fuzzy comprehensive evaluation method. The results indicate that the overall usability comprehensive score of co-pilot screens is convergent and is mainly concentrated in the range of 50–65 points, with two vehicles having excellent affiliation and two vehicles having average affiliation. However, there is a great distance still to reach when compared to an excellent level. The usability evaluation model of co-pilot screens established in this article can quantify the HMI usability design of co-pilot screens. The results of this study are significant for the four tested vehicles in terms of guiding the usability design of co-pilot screens and in promoting the rapid iteration of co-pilot screen development. And a production vehicle that connects a driving simulation platform and the usability evaluation model can be used to test and evaluate more screen designs, interaction models, tasks, and infotainment applications, thus guiding further user experience designs.

Use of a Novel Three-Dimensional Model to Teach Ultrasound-guided Subclavian Vein Cannulation.

Central venous cannulation is an essential skill in perioperative and critical care medicine. Ultrasound guidance is the standard of care for femoral and internal jugular vein access, with the subclavian vein being perceived to be less amenable to ultrasound-guided (UG) insertion, resulting in a lack of procedural competency and low cannulation rate. There is a paucity of resources and a lack of experience among staff physicians to effectively instruct trainees. Simulation-based medical education has the potential to help maintain high-stakes, infrequently performed skills and counteract possible unrecognized skill decline. We aimed to create a novel, low-cost, high-fidelity three-dimensional (3D) model for UG subclavian vein (UG-SCV) access with an accompanying curriculum to improve this important skill. A curriculum was created consisting of preparatory material reviewing UG-SCV access, followed by an in-person didactic lecture focusing on ultrasound use and management of complications and a deliberate practice session scanning volunteers and practicing UG vascular puncture on a 3D model. A qualitative usability test design was used to assess the validity of the curriculum in trainees with advanced vascular access skills (anesthesiologists). Participants were second-year anesthesia residents, anesthesia fellows, and staff physicians. Focus groups conducted after each session explored the face validity of the model and curriculum. By applying a usability design, the curriculum was optimized and finalized. Between September 2020 and February 2021, 28 participants tested the curriculum. The focus groups ensured that the curriculum achieved its objective, with iterative changes made after each session in a quality improvement framework Plan-Do-Study-Act approach. After the third cycle, minimal changes were suggested, and the curriculum and 3D model were finalized. An additional group of participants was used to ensure that no new input would help improve the curriculum further. A focused curriculum for enhancing skills in UG-SCV cannulation usinga novel 3D model was successfully implemented and validated through a usabilitytest design. This curriculum is better targeted for practitioners experienced incentral venous access to master a subclavian approach and maintain their skill level.

The effect of digitalization on the daily use of and work with records in the Norwegian public sector

PurposeThis paper presents an exploratory case study on the impact of user-oriented digitalization on records management in the Norwegian public sector. The purpose of this study is to identify some of the opportunities and issues that may arise for records management professionals, case workers and citizens.Design/methodology/approachThe concept of administrative burdens and how user-oriented design can reduce or increase them is the main theoretical focus. A series of five interviews with records management professionals from five municipalities and three with IT staff members from two larger state institutions served as the primary source for this qualitative case study in conjunction with a literature review. The interviews were conducted in a semistructured format with a general interview guide.FindingsSmaller municipalities lack the resources of larger state institutions, and they do not involve users in the same extent, even though their records management professionals strive for user-orientation. The work with directly involving users appears to vary in larger institutions, where resources must still be properly prioritized. Reducing administrative burdens is vital for user-oriented design, but digitizing services often increases them, so service delivery must consider the benefits of local, in-person guidance in relation to wholly digital services.Originality/valueWhile much research has been conducted in Norway on digitalization, little has been done to examine the implications for records management work or the public’s use of records. By identifying some key concerns, this paper hopes to serve as a springboard for further research in these areas.

Incorporating User Experience Evaluation into Application Design for Optimal Usability

Forest and land fires have become a national issue every year, especially in West Kalimantan. From 2015 to 2020, around 331,268.35 hectares of forest and land were burned in West Kalimantan. As a result of forest and land fires, the haze disrupts public health, the economy, and river, land, sea, and air transportation. As anticipation and prevention, the community and government monitor forest and land fires using the Forest Fire Monitoring System Application. The purpose of this study was to the User Experience (UX) evaluation for design improvement in the Forest Fire Monitoring System Application (SIPONGI) inWest Kalimantan. The method used was User Centered Design (UCD) and Website Usability Evaluation Tool (WEBUSE) to provide new design solutions in the form of a website prototype. The research methodology included a literature study of the SIPONGI application. The study used a sample of 25 respondents with different work backgrounds to represent the population using the SIPONGI application. The results of this study showed that usability points per attribute and category are superior after making UI/UX improvements using the UCD process in prototype form. In conclusion, using the UCD method is better if it is accompanied by the WEBUSE method in improving the design of an application.

Exploring usability principles for educational online courses: a case study on an open platform for online education

This article delves into the crucial issue of effectively implementing usability principles in educational internet resources. By engaging with the latest research in the field, we investigate the influential factors shaping the outcomes of online education. Through a comprehensive analysis, we identify and examine six well-established criteria of usability design: Information Quality, System Navigation, System Learnability, Visual Design, Instructional Assessment, and System Interactivity. Additionally, we propose the existence of a seventh criterion termed Responsiveness.To shed light on the practical application of usability principles, we focus on the open platform "Higher School Mathematics Teacher" as a case study. Through a survey administered to 203 respondents, comprising both teachers and students, we sought to gather their valuable perspectives as the initial users of the platform. The insights gained from this study provide guidance for the implementation of usability criteria on the platform, particularly during the development of online courses.The findings strongly suggest that all seven subcategories of usability are pivotal in the design of online courses on the platform. This research contributes to the ongoing discourse on usability implementation in educational technology, offering valuable insights for developers, educators, and researchers alike. By recognizing the significance of these criteria, educational internet resources can be enhanced to create more engaging, accessible, and effective learning environments.

Effects of Interaction Method, Size, and Distance to Object on Augmented Reality Interfaces

ABSTRACT Augmented reality (AR) technologies are becoming increasingly popular. However, studies regarding the usability of AR interfaces are scarce. This study aims to derive the optimal usability design of the AR interface by analyzing the performance of 12 interface conditions (2 button sizes × 3 distances × 2 interaction types). An experiment was conducted using Microsoft HoloLens, in which participants performed button selection tasks with an array of 3 × 3 virtual buttons. The task completion time and the number of errors were measured along with a subjective satisfaction score. The results showed that a clicker-based interaction was more effective in task completion time, the number of errors and user satisfaction than a hand gesture. Furthermore, large buttons required a significantly shorter task completion time than small buttons. There was no significant difference in the number of errors between the two sizes. A distance of at least 80 cm from the eye to the virtual object is most favorable for a good performance. There was a significant difference in the task completion times between 40 cm and 80 cm and between 40 cm and 120 cm. These results can aid the interface designs for AR applications and devices.

The use of artificial intelligence and game-based learning in removable partial denture design: A comparative study.

The purpose of this study was to compare student performance in removable partial denture (RPD) design during a pre-clinical RPD course with and without using a recently developed computer software named AiDental. Additionally, student perceptions associated with the use of this software were assessed. The AiDental software consists of a learning environment containing an RPD design system that automatically designs RPDs based on the user's input. The software also contains an RPD game component that compares the user's RPD Design to an automatically generated RPD ideal design. The study was conducted in two phases. In phase one, pre-clinical second-year dental students who participated in the study were randomly divided into two groups: The AiDental group with AiDental software access (n=36), and the conventional group without software access (n=37). Both groups received conventional RPD instruction and practice, however, the AiDental group had additional access to the AiDental software. After 2 weeks, both groups took a mock practical test, which was collected and graded by the principal investigator (PI). The PI was blinded from group assignment and no identifying information was used in the mock practical. In phase two, all students were granted access to the AiDental software for the remainder of the pre-clinical course duration. At the conclusion of the course, all students were given a survey to evaluate their perceptions of the AiDental software. Descriptive statistics were calculated and analyzed. Variables related to perceptions of both the AiDental designer and game were assessed using Spearman's rank correlation test, the chi-square test, Fisher's exact test, and the non-parametric Wilcoxon rank-sum test as appropriate. In addition, a thematic analysis of the responses to the optional comments section was conducted using the Braun and Clarke method. Phase one results showed that subjects in the AiDental group were more likely than subjects in the conventional group to receive a final grade of A or B. Phase two results showed generally favorable student perceptions towards the software, and additionally, the results showed that age was significantly negatively correlated with ease of use of the software, improving decision-making, and critical thinking relative to RPD design choices. However, no correlation between age and using the software as a reference were noted. The use of AiDental's automated feedback and gamification techniques in RPD education had a positive effect on student grades and it was well-liked by students. Thus, the results suggest that AiDental has the potential to be a useful adjunct to pre-clinical teaching.

사용자 경험을 바탕으로 하는 감성 디자인 방법 모델 연구

In this paper, we will examine the principles of emotional design and design methods for uniforms. With the progress and development of society, the material function can no longer meet people's demand for products, but expand to the spiritual function, through the spiritual level of demand to integrate more emotions into the product, to meet the user's emotional experience. This research can expand the operational and emotional experience of uniforms, help users improve their work efficiency, and satisfy both their material and spiritual needs. This study takes preschool teachers as an example, preschool teachers as user subjects based on user experience and using user's emotional design methodology as support. Through literature research method, comparative research method, questionnaire survey and interview, the general job content and user needs of current Chinese preschool teachers were summarized, and the three layers of emotional design were corresponded to the uniform design, and the methodological model of emotional design of uniforms was expected to be obtained. This method model can provide new ideas and development directions for uniform design, help uniforms for specific groups of people to establish advantages in the market competition with serious homogenization, and provide reference for uniform design and selection.

Enhancing the design of data-related privacy controls for smart home devices

PurposePast research shows that users of smart home devices (SHDs) have privacy concerns. These concerns have been validated from technical research that shows SHDs introduce a lot of privacy risks. However, there is limited research in addressing these concerns and risks. This paper aims to bridge this gap by informing the design of data-related privacy controls for SHDs.Design/methodology/approachIn this paper, the authors follow a user-centered design approach to design data-related privacy controls from design requirements backed by literature. The authors test the design for usability and perceived information control using psychometrically validated scales. For this purpose, two variations of the prototype (MyCam1 with a listing of data-related privacy controls and MyCam2 with three privacy presets) were created and tested them in a between-subjects experimental setting. Study participants (n = 207) were recruited via Mechanical Turk and asked to use the prototype app. An online survey was distributed to the participants to measure some usability and privacy-related constructs.FindingsFindings show that the presented prototype designs were usable and met the privacy control needs of users. The prototype design with privacy presets (MyCam2) was found to be significantly more usable than the list of privacy controls (MyCam1).OriginalityThe findings of this paper are original and build on the paper presented at the International Symposium on Human Aspects of Information Security and Assurance (HAISA 2022). This paper contributes improved and usable designs of privacy controls for smart home applications.

Individuals Utilization Behavior While Using Critical Healthcare Systems (Medical Ventilator)

Ergonomics and human factors play an important role in interaction design. Poor usabil-ity design of critical safety systems can easily lead to human error. While inspecting the critical systems, there are vital factors that have to be considered, such as demographic, organizational, interface design, and task factors. This study has inspected the influence of different demographic factors (age, gender, and education) on the medical ventilator system's usability. The primary purpose is to seek the difference in task completion time, reflection time, and the number of touches during the interaction, considering different demographic factors. As well as to seek the difference in perceived task workload in-dex. To test the study hypothesis, the Hamilton-c6 ventilator prototype was developed. The experiments were conducted on 54 participants, including physicians and nurses, in a controlled environment from different public-private sector hospitals in Pakistan. De-scriptive statistics and ANOVA were used to assess the study objectives. The results suggest significant differences between male vs. female and physician's vs. nurses groups while interacting with safety-critical systems. However, the difference between young and older adults was not significant. These findings have substantial implications for the effective user-centric design of safety-critical systems.