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Website is a form of mass media that is published through internet network that can be accessed anywhere and anytime. To know the quality of a website it is necessary to measure, by doing measurement of the quality of a website can be known user satisfaction against the website. In this study using the WebQual 4.0 method refers to the three core dimensions representing the quality of a Website, namely usability, Information Quality, Service Interaction Quality. This research was conducted using a questionnaire the population of this study were Lintasarta employees, sample from this study 28 questionnaires. After the data is obtained, it is tested for validity and reliability. In this study, the regression analysis used the assumption test classical, and multiple linear analysis. Then for hypothesis testing F test and t test are used. The results obtained in this study are Usability Quality, Information Quality and Interaction quality have a positive effect on consumer satisfaction.

Internet technology has not only transformed societal thought patterns but has also significantly impacted lifestyles, particularly through User Interface (UI) and User Experience (UX). In Indonesia, specifically in the fashion e-commerce sector, there has been rapid growth with over 2 million e-commerce businesses. The UI/UX design process utilizes the Design Thinking method, encompassing stages such as Emphatize, Define, Ideate, Prototype, and Testing. Through the involvement of surveys and interviews, user issues are identified and formulated in the How Might We framework. Figma is employed in the development of UI/UX, resulting in a prototype tested through Usability Testing and the Single Ease Question. The testing outcomes indicate the success of the prototype. Through the application of the Design Thinking method, the design process yields effective solutions, providing an optimal user experience in interacting with the e-commerce merchandise website of Sidoarjo city.

The used car showroom business conducts manual recording to document purchase transactions, sales transactions, vehicle unit financing, employee management, relying solely on the owner's memory. The risk lies in manual recording requiring significant time and attention, with possibilities of errors (duplication) in recording, loss, or damage. Hence, the utilization of information technology is necessary in managing the assets of the used car showroom and employee management, introducing a system called SIMOKAS (Sistem Informasi Manajemen Showroom Mobil Bekas). Steps in this research involve data collection, literature review, and system design. Data collection involves two approaches: interviews and observations. The applied system design method is Prototyping. System testing methods include Black Box Testing and Usability Testing. SIMOKAS testing occurred at Putra Mobil Balikpapan showroom, involving ten potential users. Based on functional testing through black box methods, SIMOKAS met requirements and functioned accordingly, managing vehicles, transactions, vehicle documents, and employees. Usability testing resulted in a total SUS score of 87.25, falling into the 'Acceptable' category for acceptability, receiving an 'A' grade on the grade scale, and being in the 'Best Imaginable' category in adjective rating. Thus, the conclusion drawn is that SIMOKAS is a system with good usability from the user's perspective.  

Based on the results of a survey by Kurious and Populix, a healthy lifestyle starting to become a focus and trend in Indonesia. These surveys reveal people's understanding of healthy food, with the problems that arise. Even though many people understand its benefits, there is still a gap between understanding and healthy practices, especially among the productive age group (25-44 years). Difficulty maintaining consistency in a healthy eating pattern is a challenge faced. The solutions provided from the survey results show that 64 percent of Indonesian people use healthy catering services to maintain consistent healthy lifestyle patterns. Therefore, the idea of developing the YumHealth startup emerged to help people start eating better, with a focus on catering services and delivery service features, nutritional consultations, education through articles,and a BMI calculator. This research will focus on implementing these features using a Design Thinking approach and testing using the Usability Testing method. Apart from that, the potential of the online market in Indonesia is also an encouragement to develop this application. This research aims to provide adequate solutions to existing problems and improve user experience. Based on the results of Usability Testing with 30 respondents, the final result was 71.5, which means the application prototype is in a good grade. The testing results also provide suggestions such as the use of typography (fonts), and visualization in education, as well as adding features such as guide pages and TDEE calculators.

Vidio application is a video streaming application platform that finds many interesting features. The Vidio application has several advantages and disadvantages, which can be seen in user comments on this application in the playstore. It is necessary to analyze the level of user satisfaction with the Vidio application. The data collection technique uses task scenarios and through the SUS questionnaire distributed to users of the Vidio application, to collect and analyze data on user satisfaction with the Vidio application. The method used to analyze the data is using the Usability Testing method. The results of the evaluation on the Vidio application show an efficiency value of 89% in the efficiency aspect, the memorability aspect has a good memory level, the learnability aspect shows an effectiveness value of 97%, and in the satisfaction aspect the Vidio application gets a range of f values