Utilization of information technology on this day has become an unavoidable need. Utilization of website as a promotion event of an institution or organisation still not optimal because not follow usability aspect/usability. The interface of the university website should be a reflection of the university itself. Evaluation of the interface of the university website should be done to find out how high the usability level of university website development. Using usability testing method is expected to be able to measure the usability level of the university website to maximise the promotion of Higher Education in cyberspace. Methods to measure using quantitative methods by spreading questionnaires to the respondents. Research indicators use usability indicators that includeLearnability, Memorability, Efficiency, Errors, and Satisfaction. The questionnaire tested its validity and reliability before use. Questionnaires are distributed freely to internal and external residents of Higher Education. 95 Respondents filled out questionnaires that had been scattered. Assessment method using a Likert scale with four levels, namely: Strongly Agree; Agree; Disagree; Strongly Disagree. The results of this study concluded that the university website has a final value of 2.77 where this value is still in the excellent category. The lowest value of the five aspects of usability is in the Errors aspect of obtaining a value of 2.65.

Public transportation is currently starting to experience very rapid development. This development is due to the increasing public demand for safety and comfort on the journey. Presentation of bus ticket availability information at this time is still manual, so potential users must come to the agent to find out the availability of tickets and make ticket reservations so that it is not uncommon if there are users who run out of bus tickets because the user does not get information directly. To facilitate prospective users in booking tickets and searching for bus departure information, an Android-based bus ticket booking application was built. This application was designed using MySQL, Adobe Dreamweaver and Android Studio. The system development method used in this study is the prototyping method. As for the testing method using BlackBox Testing. This method is used to find out if there are performance errors on the system. The purpose of this application is to make it easy for prospective bus users to search for buses and order tickets so they can be done anywhere and anytime without being bound by time and place.

The Central Java region is the highest disaster-prone region in Indonesia in the period January - May 2019. The disasters occurred, in total of 554 times, with a total of 14 fatalities, 7 injured, 98,208 affected and displaced. Natural disasters cannot be avoided, but their impact can be minimized with good management. Disaster management and anticipation include utilizing information systems. A good information system is a system that makes it easy for users. The level of usefulness of this system, must be measured whether this system will be useful or not. This research is focused on testing the interface of the Disaster Information System belongs to BNPB Magelang. The method used is Planning and Analysis, Usability Evaluation, Data Analysis and Data Presentation. This measurement is done by the usability testing method. Based on the measurement results of the usability level of the Disaster Information System, a value of 3.35 was obtained. Based on the Linkert Scale, this system is said to be Usable. The results of the research can describe the reusability level of disaster information systems and to recommend in improving aspects of reusability.

The development of information and communication technology has been proactively addressed by Muhammadiyah. Muhammadiyah has modernized da'wah methods by utilizing ICT technology in every activity, but it is still limited to media commonly used by the public such as social media, the web on the Internet, and so on, so that it is still limited, partial, and has not been systematic and structured ally serves its people and is constrained in monitoring and evaluation. The use of web based systems can be a solution to develop locations or e-da'wah based on geography while answering problems in the management and branch of the Muhammadiyah region in monitoring and evaluating its activities.  The research method used is to use quantitative methods to obtain primary data to find out the user's desire for e-da'wah in Muhammadiyah citizens while the observation method and survey questionnaire are used to evaluate the acceptance of Muhammadiyah member users to the use of e-da'wah applications that have been made. This research aims to design a framework for the concept of web-based e-da'wah applications. As a result, the e-da'wah application model developed on a web-based basis has received responses from 57% of respondents who find it easy to understand the studies presented in this e-da'wah media.

In December 2019, SARS-CoV-2 caused the coronavirus disease to spread to all countries, infecting thousands of people and causing death. COVID-19 causes mild illness in most cases, although it can make some people seriously ill. Therefore, vaccines are in various phases of clinical progress, and some of them have been approved for national use. The current state of affairs reveals that there is a critical need for a quick and timely solution to the need for a Covid-19 vaccine. Non-clinical methods such as data mining and machine learning techniques can help to do this. This study will focus on US COVID-19 Vaccination Advances using Machine learning classification algorithms and Using Geospatial analysis to visualize the results. The paper's findings indicate which algorithm is better for a given data set. Naive Bayes algorithm is used to run tests on real world data, and is used to analyze and draw conclusions. Period of Accuracy and performance, and it was found that Naive Bayes is very superior in terms of time and accuracy.