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This study evaluates the effectiveness of AI-powered tutoring systems in enhancing personalized English language learning among students in Colleges of Education in Lagos State, Nigeria. The primary objectives include assessing the impact of these systems on students' English proficiency and evaluating their perceptions of usability and effectiveness. Guided by four research questions, the study aims to provide insights into the integration of AI in educational contexts. Employing a survey research design, the study targeted a population of approximately 50,000 final-year students across several Colleges of Education. A sample of 400 students was selected using a combination of convenience and stratified random sampling techniques, ensuring representation from two institutions: the Federal College of Education (Technical) Akoka (FCET) and the Adeniran Ogunsanya College of Education (AOCOED). A structured questionnaire with 30 items was developed and validated, achieving a reliability coefficient of 0.81. Data collection methods included both in-person and online approaches, yielding a response rate of 74.5% (298 completed questionnaires). Data were analyzed using descriptive statistics and t-test for hypothesis testing. The findings revealed a significant difference in English language proficiency between students using AI tutoring systems and those using traditional methods, with the AI group reporting better outcomes. Additionally, students expressed mixed perceptions regarding the usability of AI systems. Major recommendations include enhancing AI system functionalities, providing comprehensive training for users, and addressing technological barriers to ensure effective implementation. This study underscores the potential of AI in education while highlighting the need for ongoing improvements and support mechanisms.

Gigs Wear adalah sebuah startup konveksi yang bertujuan menyediakan layanan pembuatan lanyard, ID card, dan kaos custom berkualitas tinggi dengan harga terjangkau. Penelitian ini menggunakan metode design thinking untuk merancang antarmuka pengguna (UI) website Gigswear.co. Dengan fokus pada kebutuhan pengguna, lima tahapan design thinking diterapkan, yakni empathize, define, ideate, prototype, dan testing. Pengujian dilakukan menggunakan System Usability Scale (SUS), yang menunjukkan hasil sangat baik dengan tingkat keberhasilan rata-rata 100%. Temuan ini membuktikan efektivitas pendekatan design thinking dalam meningkatkan pengalaman pengguna, yang pada akhirnya mendukung keberlanjutan usaha Gigs Wear.

The aim of this research is to design and build an online marriage registration service information system at the KUA Tinggi Raja District using the CodeIgniter framework which can support or facilitate marriage registration at the KUA Tinggi Raja District. The research method used in this research is a qualitative method with the waterfall system development method. The applications created are designed using Unified Modeling Language (UML) including Use Case Diagrams, Activity Diagrams, Sequence Diagrams, and Class Diagrams. The software used in designing this application uses the PHP programming language, XAMPP as the web server, MySQL as the database. The result of this search is an application for the Tinggi Raja Regency KUA Online Marriage Registration Service so that this application can support the Telluwanua Regency KUA Online Marriage Registration Service. The application was tested using the black box test method and results were obtained without program errors, while for questionnaire testing using usability the results were very in line with the score, namely utilization of 96%. Hopefully this application can help online marriage registration services at the KUA Tinggi Raja District. 

This study aims to develop a web interface for a digital wedding invitation service provider (Fairytale) using the User-Centered Design (UCD) approach. The research method follows the UCD approach, consisting of four main stages: (1) understanding the context of use, (2) identifying user needs, (3) designing solutions, and (4) design evaluation. Data collection involved 36 respondents through questionnaires, interviews, and usability testing. The findings highlight three key functional requirements: template customization (94.4%), guest list management (88.9%), and digital RSVP (86.1%). The implementation of UCD resulted in significant improvements in usability metrics: task success rate increased from 65% to 91.7%, error rate decreased from 35% to 8.3%, and user satisfaction rose from 3.2 to 4.3 (on a 1-5 scale). Mobile-first optimization became a central focus, given that 72.2% of users prefer accessing the platform through mobile devices. This research contributes to the development of the UCD model for digital platforms in Indonesia and provides practical guidelines for user-centered interface development. The study's limitations include a small sample size and a geographically focused scope, suggesting opportunities for future research with a larger scale..

The purpose of this research is to evaluate the usability of the website by students of Amikom University Purwokerto using the usability testing method. In today's digital world, websites have become the primary tools for communication and information for educational institutions. Therefore, it is important to ensure that the website meets the needs and expectations of users. The methods used in this study include data collection through a questionnaire designed to measure five key variables: learnability, efficiency, memorability, errors, and user satisfaction. This questionnaire was distributed to students to gather comprehensive feedback regarding their experiences while using the website.The research results indicate that there are many aspects that need improvement to enhance the user experience, including ease of navigation and the speed of information delivery. The lower scores on the memorability index suggest that users experience difficulties recalling how to use certain functions after not visiting the website for a certain period. Additionally, several performance issues and errors were found that could hinder users from achieving their goals on the website. We hope that these findings can provide useful recommendations for the development of educational websites to be more efficient and user-friendly. Given the negative aspects identified, it is hoped that the user experience can be improved so that the website can function as a source of information and services for students.  

Distance learning has become a supporting tool in education in the digital era. Improving the quality of education requires changing new, more efficient learning methods by designing E-Learning applications for learning media. The Manado State Christian Institute already has an Information System platform which aims to facilitate student registration and administration. To improve the quality of education, an E-Learning application is needed. The aim of this research is to design an E-Learning application as a distance learning platform that facilitates communication between students and lecturers in accessing material, assignments, challenges and exams. System design is carried out using Unified Modeling Language (UML) based modeling. Based on the results of usability testing, a score of 95.2% was obtained, which means that the E-Learning application is very good to use based on the experience of 5 respondents representing the Manado State Christian Institute.

The Communication, Informatics, and Statistics Agency (DISKOMINFOTIK) of Bengkalis is a government institution focused on information and statistics. One of the media used for information dissemination is the DISKOMINFOTIK Bengkalis website. The website of the Communication, Informatics, and Statistics Agency of Bengkalis District offers several information options such as the agency profile, work units, public information, agendas, announcements, contact details of DISKOMINFOTIK Bengkalis, as well as news published by DISKOMINFOTIK Bengkalis. Therefore, the DISKOMINFOTIK Bengkalis website is considered a significant medium for both the agency itself and the public. Hence, software quality becomes an important consideration as it directly affects the website's performance. For this reason, testing needs to be conducted on the DISKOMINFOTIK Bengkalis website. This research addresses 11 factors in McCall, namely Correctness, Reliability, Usability, Integrity, Efficiency, Reusability, Portability, Interoperability, Maintainability, Flexibility, and Testability. Testing is done in two ways: with testing tools and with questionnaires submitted to users and system developers. The results of testing conducted with questionnaires yield quality scores of Correctness 77,66%, Reliability 77,8%, Efficiency 79,01%, Integrity 77,31%, Usability 77,67%, Portability 77,31%, Maintainability 90%, Testability 90%, Flexibility 93,3%, Reusability 95%, Interoperability 90%, so the average quality is 84%.

The development of technology and easy access to the internet has affected reading habits, with digital novel platforms becoming popular as an alternative to reading. However, novelists face obstacles in publishing their works, due to fierce competition in the publishing industry. The proposed solution is to build a multiplatform application system as a platform for novelists to publish their works using the Laravel API. The development method used is Waterfall, which consists of five stages of development. This application will provide features that facilitate interaction between novelists and readers, such as likes, comments, and uniquely there is a feature to listen to novels via voice for users who prefer to listen rather than read, with a text-to-speech system. In addition, the app allows novelists to build a stronger fan base. This research aims to provide a practical and efficient platform for novelists to write, edit and publish their works online through the features provided in the application. System testing was carried out using the System Usability Scale (SUS) method to get a score of 79.5 including the Good category with grade scale B. The programming language used in the development of this application is Flutter, which allows the creation of multiplatform applications with responsive and consistent performance on various devices.    

This study focuses on the design of the user interface (UI) and user experience (UX) for a pizza shop application using the Design Thinking method. Aiming to enhance convenience and efficiency in the ordering process, the method involves five stages: empathize, define, ideate, prototype, and test. The UI design is developed to ensure an attractive and user-friendly interface, while the UX emphasizes ease of navigation and user satisfaction. The resulting prototype includes essential features such as product menus, shopping cart, and order tracking. Usability testing shows that the application effectively simplifies online pizza ordering, improving the overall shopping experience for users.

PT Serasi Shipping Indonesia is a company operating in the field of transportation and ship agency. Based on the results of observations during land-based practice in related research, researchers found several obstacles that could cause low effectiveness and gaps in the process of procuring goods on ships. Some of the problems that occur are that in the procurement process goods often have to arrive so that it has less impact on time effectiveness. Apart from that, the participating vendors do not comply with the company's SOP, so price conditions often occur. Based on these problems, an innovation is needed to overcome these problems with the existence of My Vendor. This research was developed using the Software Development Life Cycle (SDLC) method. The results of the application design are intended for 3 main user parties, namely PT Serasi Shipping Indonesia, PT Teknik Samudra Indonesia, and PT Thufail Segara Tama. The results of this research are in the form of an application design that has been integrated into the procurement process for necessary goods. The design and build process has 6 stages, namely planning, development, system design, implementation, testing and application maintenance. The researcher carried out 2 tests, namely using User Acceptance Testing (UAT) and obtained program correctness function results and output of 100%. Apart from that, based on the results of the usability function, the percentage of feasibility for the accumulated presentation was 95 percent. This means that the design that has been created is suitable for use.  With the proposed digitalization system, it is hoped that it can become a bridge to solving problems based on appropriate trials. Apart from that, researchers hope that the proposed application will not only be for one company but will later be developed more widely for other companies and become a more useful and efficient business opportunity.

The presence of employees in the company refers to their physical availability and mental involvement in carrying out their assigned duties and responsibilities. This includes punctuality, productivity, as well as positive contributions to company culture and achievement of organizational goals. The aim of the research conducted on employee attendance is to show how high the level of efficiency in using the attendance application is by comparing the TAM and UAT methods so that the difference in this concept determines whether employee responses are accepted or not. utilization of this technology, the TAM method is a framework for understanding technology adoption behavior based on user perceptions of usability and ease of use, while the UAT method testing is the process of testing software by end users to ensure suitability to business needs. The final comparison results obtained by the TAM and UAT methods had percentages of 84.69% and 87.38%. which is categorized as good in terms of utilization of attendance applications for employees.

In the rapidly evolving digital era, the demand for precious metals, especially gold, has significantly increased. Companies need to adopt modern technology to facilitate the ordering of precious metals effectively and efficiently. This study aims to design the user interface (UI) and user experience (UX) of a precious metal ordering application using the Design Thinking method, which involves the stages of empathy, definition, ideation, prototyping, and testing. Starting with problem identification and interviews to understand user needs, this study produces user personas and user flows that assist in creating wireframes and mockups of the application. The prototype is tested through usability testing using the System Usability Scale (SUS) and Maze to measure user effectiveness, efficiency, and satisfaction. The results show that the designed application enhances user experience with an intuitive and easy-to-use interface, achieving a usability testing score of 85 on the SUS and a task success rate of 90% on Maze, indicating that the Design Thinking method is effective in designing the UI/UX of a precious metal ordering application.  

Hipertensi merupakan salah satu penyakit tidak menular yang umum terjadi di dunia. Salah satu penyebab umum hipertensi adalah pola makan yang tidak sehat. Dalam menanggapi hal tersebut, Dietary Approach to Stop Hypertension (DASH) disarankan sebagai pola makan yang efektif untuk mengurangi tekanan darah. Meskipun telah terbukti efektif, penderita hipertensi masih belum dapat menerapkan pola makan tersebut secara konsisten. Salah satu faktor penghambat penerapan pola makan DASH adalah ketidaktahuan penderita hipertensi dalam memodifikasi pola makan sesuai anjuran yang ada. Berdasarkan permasalahan tersebut, penelitian ini bertujuan untuk merancang pembuatan aplikasi pola makan DASH bagi penderita hipertensi berbasis mobile yang dapat memberikan rencana makan sesuai pola makan DASH. Rencana makan dalam jangka waktu tujuh hari yang dibuat setiap harinya meliputi sarapan, makan siang, dan makan malam. Menu makanan akan dirancang dan disesuaikan dengan jumlah kebutuhan kalori harian. Penderita juga dapat memantau asupan natrium sesuai dengan makanan yang telah dikonsumsi. Sebelum mengembangkan aplikasi, usability testing dilakukan menggunakan metode heuristic evaluation untuk mengevaluasi desain pada prototype. Pengembangan aplikasi dilakukan menggunakan metode waterfall model dengan arsitektur BLoC. Aplikasi mobile dikembangkan menggunakan bahasa pemrograman Dart, framework Flutter, Bloc, Firebase, dan Edamam untuk sistem operasi Android. Pengujian black box kemudian dilakukan dengan metode functional testing. Setiap fitur yang diujikan berhasil berjalan sesuai yang diharapkan dan dinyatakan lolos pengujian. Hasil penelitian menunjukkan bahwa aplikasi Milda dapat digunakan oleh penderita hipertensi untuk menjalankan pola makan sehat dengan memberikan rencana makan sesuai dengan pola makan DASH. Rencana makan yang diberikan mendorong penderita hipertensi untuk memulai atau mencoba kembali pola makan DASH. Selain itu, variasi menu makanan yang menarik juga mendorong penderita hipertensi untuk lebih konsisten dalam menjalankan pola makan DASH.

This research tests the usability of the platform on new students of Informatics Engineering. Usability of is measured through three main variables: effectiveness, efficiency, and user satisfaction. Data was collected through pre-test and post-test involving 20 respondents using questionnaires and practical tasks. 20 respondents using questionnaires and practical tasks. The results of the study showed that the effectiveness and efficiency of the Scratch platform increased significantly from the pre-test to the post-test, reaching a level of effectiveness and efficiency, showing that the time required to complete programming tasks is reduced once users are familiar with the platform. User satisfaction also increased, with the majority of respondents feeling more comfortable and interested in using Scratch after testing. This research concludes that the Scratch platform is effective and efficient as a programming learning tool for new Informatics Engineering students.  

Information technology is one of the important aspects in life, including iin the world of education. In this research, an application for managing school announcements and information with push notification features is developed. The purpose of designing this application is to improve communication between the school, students and parents of students at SMK Negeri 3 Pahunga Lodu. Because this school still uses conventional methods in delivering announcements and information. Through needs analysis, design, development, push notification feature implementation, and application testing, this research succeeded in creating a platform that allows users to receive real-time information. Testing the feasibility of the application using the System Usability Scale (SUS) involving 20 respondents, the score generated in this test is 78. This shows that this application has a good level of usability. the implementation of this application is expected to answer the problems of SMK Negeri 3 Pahunga Lodu.    

Education is vital for human beings to develop and continue their lives. Although many of the tutor search apps are available, students in Eastern Sumba have difficulty enjoying this service because no private tutor is resident in East Sumba. A private lesson tutor is important for students who need more intensive learning outside of school, especially parents who are busy or do not have the opportunity or knowledge to help their children. The challenge often faced is the difficulty of finding a tutor that suits the needs of the student. The use of profile matching methods can help parents or student guardians find private tutors based on specific needs or preferences, such as subject, level of experience, location, or other criteria. Tutors that meet these criteria will appear as search results. Testing with the System Usability Scale (SUS) showed that the application is qualified for users, as it achieved an average score of 72.62.  

The ornamental fish market is growing rapidly due to the great interest in the hobby of keeping ornamental fish which is supported by technological advances.  Unfortunately, these technological advances also include problems that are still experienced by sellers and buyers, such as a lack of understanding of how to send fish and a lack of information about trustworthy sellers.  This research aims to formulate user needs and create an ornamental fish marketplace application interface using the Design Thinking method with good usability values.  This research discusses creating application interface designs using the Design Thinking method which focuses on users to overcome the problems above.  This research produces interface designs for 21 features with the main feature being a community that makes it easier for sellers to interact and displays ratings on stores to make it easier to find trustworthy sellers.  This research was carried out in two iterations, with the final test results in the second iteration being 92.85% (Learnability value) and 91.15% (Efficiency value) for five sellers.  Test results for five hobbyists / potential buyers obtained a Learnability score of 97.14% and Efficiency of 92.72%.  Meanwhile, Satisfaction (SUS) for both got a score of 83.5%.  The test results produced a good usability design.

In the current era of modernization, almost everyone uses the internet to help solve their problems. Including security activities. Currently, many companies provide security services. There are also many companies or individuals who are or want to look for companies providing security services but they don't know where to look for these companies because of the lack of information. Therefore, to make it easier for security service seekers and security service providers, a design is needed that can be a solution to the problems of both parties. It is hoped that the required design will meet the needs because it must go through several stages of testing in accordance with standards and the needs of potential users. UI/UX analysis and design involved 10 respondents from two actors, namely companies providing security services and companies or individuals seeking security services. The final design was tested by the same 10 respondents with four types of testing. Testing is carried out repeatedly until respondents feel that the design meets the needs of potential users.

Indonesia is an agricultural country, where agriculture is a strong supporting sector in the development of the industrial sector. One of the subsectors in the agricultural sector is the food crops subsector. Bringinbendo Village is a village where the majority of the population are rice farmers, where rice farming is one type of food crop sub-sector. The amount of rice production over the last five years has fluctuated, but the rhythm tends to decrease. The causes of poor production results are rice pests and diseases, weather conditions, and incorrect fertilizer dosage. Apart from that, not all young people today are interested in becoming rice farmers and continuing their parents' profession. The method used in this thesis research is using the Lean UX method. Meanwhile, the method used in testing in this thesis research is using Heuristic Evaluation and System Usability Scale (SUS). The result of this research is to produce a PandaiLadang application design, which is a prototype of the PandaiLadang application design. The results of testing carried out by users with Heuristic Evaluation, obtained excellent and good qualifications. Meanwhile, testing using the System Usability Scale received a very good score, which means that the UI/UX design of the PandaiLadang application that has been created does not need to be repaired.

A construction testing laboratory is a special facility used to carry out various types of testing and analysis of construction materials, structures and construction components. It is always busy with customers, so sometimes there are huge queues of customers. Thus, research was conducted to determine the effectiveness of the construction testing laboratory queuing system. The method used in this research is Queuing Theory. Queuing Theory is a theory related to mathematical studies and queues or waiting lines. Queuing theory is always related to all aspects of the customer's situation in obtaining a service. Analysis of material testing queues in construction laboratories using the M/M/S model shows increased efficiency after adding servers. Previously, the server usability rate was 50%, with a queue time of 0.5%. After adding servers, the usability rate increases to 75%, queue time decreases, and the probability of customers being served increases to 2.11%. These results are the basis for recommendations for improvements to increase efficiency and customer satisfaction .