A database is a software that is used to store data. Data stored is generally in the form of text. Database functions are not only for storing data but also used to speed up access to information systems. Optimal database management can increase access to information systems. One management that can improve performance is the appropriate relational data design. Relational is a relationship between tables. The design of the relational database must pay attention to the selection of data types, data type values, and constraints that will be selected. This study will examine the optimization of the MariaDB database on information systems in tracer studies. Database design will accommodate data from two application sources, namely web-based applications and telegram bots. Using two paths to the database to make it easier for users to register via a telegram bot, users can then access the tracer study questionnaire on web-based applications. The MariaDB database performance test shows that the highest performance average query is 6501 microsecond.

<em>The development of information and communication technology offers convenience for its users.  The use of information and communication technology also has a positive impact on the business world.  For example, the use of advances in information and communication technology in the transportation sector.  Cizqi Rent A Car is a Turkish company that launched a mobile application for online car rental service providers which is expected to make it easier for tourists or local residents who want to rent a car to travel in Turkey.  By conducting usability analysis with the WEBUSE method, this study aims to determine the usability level of the Cizgi Rent A Car application.  From the results of data analysis it is known that this application is quite famous because it has been downloaded by more than 10,000 downloaders from several countries including Indonesia.  This application is used by Indonesians who make work visits and travel to Turkey.  The usability level in the Content, Organization &amp; Readability variables and the Navigation and Links variables can be said to be Good.  The usability level for the User Interface Design variable can be said to be quite bad.  The usability level for the Performance and Effectiveness variables can be said to be moderate.</em>

Measuring the quality of a system must be conducted. This is useful for repairing the damage that may be in the system that has been created. One thing that can be measured in a system is to measure the level of satisfaction of a system. Many methods can be used to measure the level of satisfaction, one of which is the PIECES framework method. PIECES framework is a series of activities that measure the level of happiness based on six variables: performance, information, economics, control and security, efficiency, and service. One of the systems that can be analyzed is the system contained in the EPOSAL application. EPOSAL is a localhost web-based application that can be used to create an income statement. The sample in this study was respondents who used this EPOSAL application. The instrument used was a questionnaire. Data analysis was carried out by following the PIECES calculation provisions. After analyzing the data, it is known that for the variables Performance, Economics, Control, and Security and Service, the satisfaction level is at the "Very Satisfied" level. As for the Efficiency, Information, and Efficiency variables, the level of satisfaction is at the "Satisfied" level.

Dyslexia is a condition in which a person has difficulty (especially) in areas related to learning abilities such as reading, writing, and arithmetic or matters relating to numbers. This condition is not the skills expected of people with chronological age and normal intelligence abilities or IQ (quality of intelligence). This condition is sometimes not realized by parents and only consider their child slightly delayed, even though it is under standard (minimum) abilities at his age. Therefore, a platform using an expert system with the Certainty Factor method was created to help parents detect early whether their child has dyslexia or not and find out what type of dyslexia the child is experiencing. The types of dyslexia that will be included in this study include surface dyslexia, phonological dyslexia, rapid naming deficit, dysgraphia, and dyscalculia. The white box results found that the system was in line with expectations because it had a low level of risk.

Tidak bisa dipungkiri bahwa internet membawa dampak positf bagi kehidupan anak dan remaja karena memudahkan untuk mendapatkan informasi terbaru, informasi terkait tugas dan pelajaran sekolah, meningkatkan kreatifitas, memperat komunikasi antar teman dan lain-lain. Seperti dua sisi mata uang, teknologi internet juga memberi dampak negatif yang mempengaruhi martabat kedirian dan kehidupan generasi remaja sekarang ini. Munculnya beragam kasus cybercrime, adiksi terhadap pornografi dan games online, menjadi bukti nyata sangat rentannya pengaruh negatif perkembangan internet terhadap dunia anak. Kecakapan literasi digital, merupakan salah satu langkah preventif dan edukatif untuk menyadarkan dampak positif dan meminimalisir dampak negatif internet. Sekolah, bisa menjadi pengerak utama untuk mengkampanyekan dan memberikan kecakapan literasi digital kepada anak didiknya. Namun ada beberapa permasalahan untuk menerapkan literasi digital di sekolah. Pertama, belum adanya kurikulum kecakapan literasi digital dengan acuan standar. Kedua, hilangnya pelajaran Teknologi Informasi dan Komunikasi yang seharusnya bisa menjadi media penyuluhan literasi digital. Ketiga, masih minimnya kecakapan literasi digital yang dimilliki oleh para guru. Hal ini juga terjadi di Madrasah Aliyah Negeri (MAN) 2 Ponorogo, sehingga perlu diadakan pelatihan atau workshop literasi digital berbasis sekolah untuk menunjang keberhasilan budaya gerakan literasi sekolah. Berdasarkan evaluasi workshop literasi digital, peserta merespon dengan baik materi dan evaluasi kompetensi standard. Peserta mampu mengikuti dengan baik dan memahami semua materi informasi personal dan privasi, jejak digital dan kemanan Wi-Fi.Kata Kunci: cybercrime; literasi digital; madrasah.  Application of School Based Digital Literacy Model To Build Positive Content On The Internet ABSTRACT It is undeniable that the Internet has a positive impact on the lives of children and adolescents because it facilitates obtaining the latest information, information related to school tasks and increases creativity, strengthens communication between friends and others. Like the two sides of a coin, Internet technology also has a negative impact that affects the dignity of oneself and the lives of today's teenagers. The emergence of several cases of cybercrime, pornography addiction, and online games, is a real test of the very vulnerable negative influence of Internet development in the world of children. Digital literacy skills are one of the preventive and educational steps to achieve positive impacts and minimize the negative impacts of the Internet. Schools can be the main drivers for campaigning and providing digital literacy skills to their students. But there are some problems to implement digital literacy in schools. First, there is no curriculum for digital literacy skills with standard references. Secondly, the loss of Information and Communication Technology lessons that should have been a means for digital literacy advice. Third, the lack of digital literacy skills that teachers possess. This also happened in Madrasa Aliyah Negeri (MAN) 2 Ponorogo, so there must be a training or digital literacy workshop at the school to support the cultural success of the school literacy movement. Based on the evaluation of the digital literacy workshop, participants responded well to the material and the assessment of standard skills. Participants can follow well and understand all personal information and privacy material, fingerprints and Wi-Fi security..Keywords: cybercrime; digital literacy; madrasah.