The Inaportnet system is an internet-based single service information system with the aim of integrating standard port information systems in ship services from all relevant agencies or stakeholders in the port environment. The purpose of this portal development is to accelerate port clearance. The research was conducted at PT. The Indonesian National Shipping (PELNI) Makassar Branch for 1 month from November 2021 to December 2021. The source of the data obtained is qualitative data, namely the data presented in the form of related information and the quality of the object under study. Results Based on the research, the use of the Inaportnet system at PT. Pelayaran Nasional Indonesia (PELNI) Makassar Branch Inaportnet system The process of submitting a ship service application using the Inaportnet system is very easy to use, and the Inaportnet system also encourages the submission of ship service applications. Constraints and alternative solutions in using the Inaportnet Maintenance system, to overcome this problem the submission of ship services is changed to a manual system so that the service submission process continues. HR, to overcome this problem, you must carefully check the ship's documents before the ship arrives at the port. Comparison before and before the application of the Inaportnet system in submitting ship services, before the application of the Inaportnet system agents still visited the relevant agencies (manual system), after the implementation of the Inaportnet system all made the system online.

This research is motivated by the lack of utilization and use of digital-based learning media and less varied learning media. This research aims to develop learning media using Wordwall where students will learn based on media that has been validated and has been categorized as valid, practical, and effective. The type of research carried out is Research and Development (R&D) using the ADDIE model which has 5 stages, namely Analysis, Design, Development, Implementation, and Evaluation. Data was obtained based on a validation questionnaire of material experts, linguists, and media experts; questionnaire on the practicality of teacher and student responses; and the effectiveness of the results of the student evaluation test. The results of the material validity test in the development of learning media using Wordwall obtained a percentage result of 93.33% with a very valid category, a language validity test result of 96% with a very valid category, and a media validity result of 86.71% with a very valid category. Meanwhile, the results of the practicality test obtained a percentage of 91.25% with the category of very practical for the teacher response questionnaire and 94.66% for the student response questionnaire with the category of very practical and the results of the effectiveness test obtained a percentage result of 93.35% with the category of very effective. Thus, it can be concluded that learning media using Wordwall in grade IV Mathematics learning in elementary schools has been proven to be valid, practical, and effective in the learning process.

This study aims to examine the effect of perceptions of ease, security and confidentiality, as well as information technology readiness to the use of e-filing for taxpayers. This research data uses primary data by distributing questionnaires to individual taxpayers who are registered at KPP Pratama Pelayangan Jambi City. The sampling method for this research sample is purposive sampling with a sample of 100 taxpayers. The data analysis method used in this research is multiple regression analysis assisted by the IBM SPSS statistics 27 application.
The results of this study indicate that perceived ease of use does have a positive effect on the use of e-filing, security and confidentiality do not affect the use of e-filing, while information readiness has a positive effect on the use of e-filing. Simultaneously the independent variables, namely perceived convenience, security and confidentiality, as well as information technology readiness, have an effect on the use of e-filing.