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All Journal IJID (International Journal on Informatics for Development) JISKa (Jurnal Informatika Sunan Kalijaga) JTIM : Jurnal Teknologi Informasi dan Multimedia
Prasetyawan, Daru
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Computer Science & IT Electrical & Electronics Engineering Library & Information Science

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Portal m-Da’wah using Wireless Application Protocol Prasetyawan, Daru; Yazid, Ahmad Subhan; Mulyanto, Agus
IJID (International Journal on Informatics for Development) Vol 2, No 1 (2013): IJID May
Publisher : Universitas Islam Negeri Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (557.86 KB) | DOI: 10.14421/ijid.2013.02105

Abstract

Information and technology develop quickly, cannot be controlled. This development has an impact on almost all sectors of human life, ranging from the academic sector, government, economy, military, to the household order. Technological developments also reach human affairs in religion. In every religion, there is guidance to remind one another and invite others to the good. This is often known as da'wah. Da'wah for Muslims is one of the obligations that must be carried out. This study aims to build a mobile application as a propaganda media by implementing wireless protocols. The study method used in this study is system development, which is an experiment for the design of the m-da?wah portal that can be accessed via a cellphone or PDA. Da'wah mobile applications are built with the PHP programming language, HTML tags, and WML tags, as well as utilizing the MySQL database as a database server, and implemented through the GPRS network (General Pocket Radio System), so we need a mobile phone or PDA equipped with WAP facilities to access the application. The m-da?wah application has the ability to make it easy for users to obtain Islamic articles that can be easily understood by readers and is equipped with a zakat counter facility that can be accessed via a cellphone or PDA. The test results show that the application meets the functionality requirements and is suitable for use.
Pengembangan Sistem Seleksi Proposal Penelitian Berbasis Web Service Menggunakan REST API Prasetyawan, Daru; Rahmanto, Prihanto Dwi
JTIM : Jurnal Teknologi Informasi dan Multimedia Vol 6 No 3 (2024): November
Publisher : Puslitbang Sekawan Institute Nusa Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35746/jtim.v6i3.585

Abstract

Web service-based application development has become a vital component of the modern in-formation technology ecosystem. The implementation of web services facilitates interoperability among diverse systems and platforms. REST API (REpresentational State Transfer Application Programming Interface) is one of the most popular architectures for creating efficient and scalable web services. This study examines the implementation of REST API in the development of web service-based applications. The case study focuses on the creation of a Web service-based Research Proposal Selection System. The REST API implementation method in this study adheres to the system development life cycle (SDLC) to ensure that the developed API meets business needs while being efficient, secure, and reliable. The analysis phase is conducted to gather both functional and non-functional REST API requirements. During the design phase, the REST API architecture is designed in detail, including how data will be transferred and processed, and how the API will interact with databases and other systems. Furthermore, in the implementation phase, the REST API is developed, ensuring that each endpoint operates correctly. In developing the Proposal Selection System, the implementation of web services integrates data from various existing sys-tems, including employee, academic, and research data. The system encompasses various features, such as proposal import, proposal mapping, proposal review, proposal assessment, proposal se-lection, and reporting. The research findings indicate that implementing the REST API simplifies the development of web service applications. The test results reveal that the average response time is relatively stable, measuring 31 ms without iterations and 29 ms with five iterations.
Implementasi Load Balancing dengan HAProxy di Sistem Informasi Akademik UIN Sunan Kalijaga Wirawan, Adi; Gatra, Rahmadhan; Hidayat, Hendra; Prasetyawan, Daru
JISKA (Jurnal Informatika Sunan Kalijaga) Vol. 9 No. 1 (2024): Januari 2024
Publisher : UIN Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jiska.2024.9.1.39-49

Abstract

Efficiently managing academic information systems (AIS) is essential for educational institutions to provide reliable services to students and faculty. This research explores the integration of HAProxy load balancing and file synchronization techniques to optimize the performance of AIS. HAProxy is employed to distribute incoming requests across multiple backend servers, and the backend will call web service to access the data saved in the database to facilitate seamless data sharing and access. Additionally, file synchronization mechanisms are implemented to maintain consistency across scripts used in the backend system. The study conducts performance evaluations and benchmarks to assess the impact of HAProxy load balancing and file synchronization on AIS responsiveness and reliability. The results reveal significant system scalability and fault tolerance improvements, reducing downtime and enhancing user experience. This research contributes to optimizing academic information systems, enhancing their ability to handle increased loads, and ensuring the efficient delivery of educational services.
Aplikasi Mobile untuk Otomatisasi Penerbitan Surat Mahasiswa Athari, Salim; Prasetyawan, Daru; Gatra, Rahmadhan
JTIM : Jurnal Teknologi Informasi dan Multimedia Vol. 7 No. 2 (2025): May
Publisher : Puslitbang Sekawan Institute Nusa Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35746/jtim.v7i2.630

Abstract

Effective management of correspondence is a crucial requirement in various organizations to enhance operational efficiency, particularly in supporting lectures in higher education. The issuance of letters for student needs must adhere to specific requirements that must be fulfilled before the letter is issued. This process can sometimes be lengthy as the examination is conducted by officers. The application of information technology enables the acceleration of letter issuance by automating the verification of the necessary requirements. The use of mobile technology also facilitates flexible access for users at any time and from any location. Mobile applications are designed to address user needs in terms of functionality, ease of use, and optimal performance. This study aims to develop a mobile-based automatic letter system that assists students in obtaining letters required during lectures. The application operates automatically, meaning that the fulfillment of the requirements necessary for issuing letters can occur without the intervention of officers to verify them. The development of this system follows the Software Development Life Cycle (SDLC), which encompasses needs analysis, design, implementation, and system testing. Application development incorporates data obtained from other existing systems such as academic information systems, personnel information systems, and electronic official manuscript systems. This application utilizes the Application Programming Interface (API) to communicate with other applications. The development of this system employs the Dart programming language and the Flutter framework. From the results of User Acceptance Testing (UAT), a score of 93.19% was achieved, indicating that the application was well received by users.
Analisis Cluster untuk Pengelompokan Kemampuan Penguasaan ICT Menggunakan K-Means dan Autoencoder Prasetyawan, Daru; Gatra, Rahmadhan
JISKA (Jurnal Informatika Sunan Kalijaga) Vol. 10 No. 2 (2025): May 2025
Publisher : UIN Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jiska.2025.10.2.145-157

Abstract

Information and Communication Technology (ICT) skills are essential in today's digital age. However, numerous new students possess varying levels of ICT proficiency and may lack the necessary skills expected by universities. ICT training is essential for enhancing students' ICT skills. Nevertheless, delivering the same training to all students proves to be less effective. Therefore, grouping students' ICT skills is crucial to ensure that the training provided aligns with the fundamental abilities of the students. Cluster analysis is a common method for grouping data. This study employs k-Means and autoencoder for cluster analysis, with autoencoder utilized to reduce data dimensions and k-Means to perform the clustering process. The Elbow method is utilized to identify the ideal number of clusters. The optimal number of clusters determined was three clusters. Model evaluation was conducted using the Silhouette coefficient and the Davies-Bouldin Index (DBI). The evaluation results revealed that the combination of k-Means and autoencoder yields superior performance compared to using k-Means alone, as evidenced by a higher Silhouette value and a lower DBI value.
Co-Authors Adi Wirawan Ahmad Subhan Yazid Athari, Salim Gatra, Rahmadhan Hendra Hidayat Ida Ayu Putu Sri Widnyani Rahmanto, Prihanto Dwi