Campus or college is an institution as well as an institution that is included in the education sector. Now the campus is included in a business sector that is engaged in education. Therefore, the campus is also inseparable from the promotion process. The promotion carried out by the campus has the aim of making prospective new students register on the campus. For private campuses, students are input that can be useful to continue the operational process for the campus. The problem that is still widely found at this time is the process of determining campus promotions is still based on assumptions. Where the assumptions used are not based on a fact or special reference. Determination of promotion on campus can be seen based on the data of students who have registered actively on the campus. From the student data, it can be processed based on Regional Origin, School Origin, Department and Study Program taken. Data mining is a technique used to process large amounts of data. Frequent Pattern Growth Algorithm (FP-Growth) is an algorithm that is included in the data mining association technique. The results obtained in the study that for determining the promotion strategy are if you take the Study Program = Informatics Engineering (PS1) then the Department = Science (J1) and Regional Origin = Deli Serdang (AD1) with a Support value = 30% and a Confidence value = 60% and Department = Science (J1), Regional Origin = Deli Serdang (AD1) with Support = 30% and Confidence = 75%. Based on the results of the process that was carried out, it was found that the promotion target was Deli Serdang, the Department was Science and the Study Program of interest was Informatics Engineering.

The objective of the study was to evaluate the website of passport submission provided by Directorate General of Immigration (DGI), Ministry of Law and Human Right of Indonesia. For this purpose, a questionnaire was deployed to gather data required. The questionnaire was developed in closed form to measure four variables i.e., information quality, system quality, service quality and perceived easy of use. Structural equation modelling was deployed to analyse the data. Lisrel software was used in this regard. The result showed that information quality, system quality and service quality influenced perceived easy of use of online passport website. Improvement in service quality will improve perceived easy of use. In contrary, in order to improve perceived easy of use, DGI must reformulate information provided on the website. Similar evidence with system quality of website, DGI must evaluate the quality of the website in order to improve perceived easy of use.

There are people who did not understand about the dangers posed by technology if it is not educated evenly. So that the legal problems that are often faced are related to the delivery of information, communication and transactions electronically, especially in terms of evidence and matters relating to legal actions carried out through the electronic system. For this reason, the importance of understanding "Cyber ​​Crime Prevention" needs to be conveyed to the community (Karang Taruna) in more depth in the RW Area 06 Pademangan Barat, North Jakarta. With this training, it is hoped that they can become internet users who can avoid the potential to become perpetrators or victims of cyber crimes.

PT. Adya Prima manages buildings in Jakarta and other areas in Indonesia, one of which is The Lavende Residence Apartment. The existence of komplaints at The Lavende Residence Apartment which is managed by PT. Adya Prima is currently accepting komplaints from apartment residents through handling officers, so that residents need more time to complete the komplaint process. So, a web-based komplaint application was designed that can be used by residents to file complaints to find out the process, so that customers do not need to meet directly and the complaint process can be resolved. The complaint application is designed using UML (Unified Modeling Language) to help describe business processes as well as in making applications using the PHP and MySql programming languages.

PT. Berkah Sinergi Keluarga Konsultindo or Quickle Permit is a virtual office (vo) service provider engaged in law and services located in South Jakarta. Based on the research that has been done by the author through direct observation of the company, it is known that PT. The blessing of the Synergy of the Konsultindo Family experienced an increase in the number of virtual office (vo) service users. Until 2022, service users from PT. Thanks to the Synergy of the Konsultindo Family, there are already 214 companies that use the virtual office (vo) service. Of the many virtual office (VO) rental orders, there is no system that can manage information about the availability of virtual office (VO) packages, prices, facilities, and problems in processing rental or client data that make current clients complain about some of these problems. The stages of system development in making this information system use the SDLC method and programming language (PHP) and with MySQL for data storage. With the web-based virtual office (VO) rental information system that we created, we will handle these problems by assisting clients in viewing information related to virtual offices (VO) and ordering virtual office (VO) rentals without having to come directly to the company and making it easier for clients to access information on availability of virtual office (VO) packages and make.