Jurnal Nasional Teknologi Informasi dan Aplikasinya
JNATIA (Jurnal Nasional Teknologi Informasi dan Aplikasinya) adalah jurnal yang berfokus pada teori, praktik, dan metodologi semua aspek teknologi di bidang ilmu komputer, informatika dan teknik, serta ide-ide produktif dan inovatif terkait teknologi baru dan teknologi informasi. Jurnal ini memuat makalah penelitian asli yang belum pernah diterbitkan. JNATIA (Jurnal Teknologi Informasi dan Aplikasinya) diterbitkan empat kali setahun (Februari, Mei, Agustus, November).
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316 Documents
<![CDATA[Developing A Web-Based Point-of-Sale Application using RAD: A Cafe Sonia Case Study ]]>
<![CDATA[Jonathan Arya Wibowo]]>;
<![CDATA[Muharman Lubis]]>;
<![CDATA[Rio Guntur Utomo]]>;
<![CDATA[Kobthong Ladkoom]]>;
<![CDATA[Rahmat Yasirandi]]>
<![CDATA[ Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 4 No. 2 (2026): JNATIA Vol. 4, No. 2, Februari 2026 ]]>
Publisher : <![CDATA[Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University ]]>
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DOI: 10.24843/JNATIA.2026.v04.i02.p01
<![CDATA[This study reports the development of a web-based Point of Sale (POS) system for Café Sonia, an MSME café setting where day-to-day transaction handling and reporting benefit from a workflow-aligned digital solution. The system was produced using Rapid Application Development (RAD) through short, stakeholder-driven iteration cycles with explicitly bounded scope and systematic feedback incorporation, resulting in an end-to-end POS flow from ordering to receipt and transaction history. Performance metrics reported in this paper are derived from a small-scale JMeter run and should be interpreted as an indicative baseline rather than evidence of peak-hour robustness. No dedicated usability evaluation was conducted; therefore, user-facing quality remains a pending empirical question that warrants task-based usability testing and standardized instruments such as the System Usability Scale (SUS) in subsequent iterations. Debates around RAD often hinge on a perceived tension between development speed and methodological accountability, particularly when systems must remain maintainable beyond the prototype stage. The Café Sonia case suggests that RAD can still yield a coherent, maintainable, and context-fit POS when iteration cycles are guided by stakeholders and the scope is clearly controlled. The novelty lies in providing case-based evidence of RAD’s practical effectiveness for delivering a customized MSME café POS, while the contribution is a traceable development pathway linking requirements capture, iterative prototyping artefacts, and scenario-based functional verification for reuse in comparable small-retail environments.]]>
<![CDATA[Penggunaan Overlapping Map dari Hasil Pengerjaan Reading Comprehension pada Aplikasi Viat – Map ]]>
<![CDATA[Riris Silvia Zahri]]>;
<![CDATA[Banni Satria Andoko]]>;
<![CDATA[Eka Larasati Amalia]]>
<![CDATA[ Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 1 (2023): JNATIA Vol. 2, No. 1, November 2023 ]]>
Publisher : <![CDATA[Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University ]]>
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DOI: 10.24843/JNATIA.2023.v02.i01.p01
<![CDATA[Viat-map is a web-based application that implements the Toulmin Argument concept for use in English Reading Comprehension subject. User acceptance of the Viat-Map application is one of the factors that supports the continued use of the application. Measurement of user acceptance of the Viat-Map application is carried out using the TAM (Technology Acceptance Model) method. This study aims to evaluate the implementation of the Viat-Map application using the TAM method, so that user perceptions and the factors that influence users in using the application can be identified. The research method uses a questionnaire as a tool to collect data on 26 users of the Viat-Map application. The results showed that user acceptance of the Viat-Map application had a positive effect on 3 TAM variables, namely perceived user convenience 89.56%, perceived usefulness 86.68%, and technology acceptance 81.87%. This shows that application developers can focus on improving development on the Viat-Map application acceptance variable because the percentage variable value is smaller than the other variable values. ]]>
<![CDATA[Memanfaatkan Motion Sensor untuk Pencegahan Pencurian Barang ]]>
<![CDATA[Rafly Shaquille Subhan]]>;
<![CDATA[I Gede Surya Rahayuda]]>
<![CDATA[ Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 1 (2023): JNATIA Vol. 2, No. 1, November 2023 ]]>
Publisher : <![CDATA[Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University ]]>
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DOI: 10.24843/JNATIA.2023.v02.i01.p02
<![CDATA[In response to escalating security concerns, this research investigates the potential of motion sensors as a cutting-edge technology for theft prevention. The study employs experimental and quantitative methods to evaluate the efficacy of motion sensors in diverse settings, focusing on the prevention of helmet theft, a significant issue in various regions. Utilizing Packet Tracer simulation, the implementation of motion sensors is explored, emphasizing factors such as placement, sensitivity settings, and effective monitoring. The findings demonstrate a substantial reduction in theft incidents, attributing this success to the swift detection of suspicious movements and prompt alerts to authorities. The research underscores the importance of proper usage and maintenance in maximizing the anti-theft capabilities of motion sensors. By simulating the implementation through Packet Tracer, the study not only leverages conceptual and theoretical aspects but also provides practical testing replicable and analyzable through simulations. The research aims to contribute valuable insights into the application of motion sensor technology for preventing helmet theft and encourages the widespread adoption of quality helmets for enhanced safety. ]]>
<![CDATA[Rancangan Alat Penyiraman dan Pemupukan Tanaman Berbasis IoT ]]>
<![CDATA[I Wayan Wikananda Adikara]]>;
<![CDATA[Agus Muliantara]]>
<![CDATA[ Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 1 (2023): JNATIA Vol. 2, No. 1, November 2023 ]]>
Publisher : <![CDATA[Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University ]]>
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DOI: 10.24843/JNATIA.2023.v02.i01.p03
<![CDATA[In general, plants really need water and fertilizer for their growth process. Busy daily life makes plant owners pay less attention to their plants, this will result in plants lacking nutrition and will wilt or die. In this research the aim is to build a smart plant watering system for plants with an Arduino Uno microcontroller. Providing water and fertilizer to plants is automatically controlled by a microcontroller as a control center. The automatic system works based on information from several sensors regarding soil conditions in plants. Plant watering is carried out when the soil moisture sensor (HW-080) reads soil moisture according to a predetermined set point, if the soil content value is below 400 then the soil has moist status, if the soil content is above 400 – 900 then the soil has normal status, but if If the content is >900 then the soil status is dry. To apply liquid fertilizer to plants, use the Real Time Clock (RTC Ds3231) which functions as a schedule for administering liquid fertilizer by first setting the day and time in the program according to the set point that has been made. ]]>
<![CDATA[Sistem Pendeteksi Sampah Secara Realtime Menggunakan Metode YOLO ]]>
<![CDATA[Kadek Adi Priana]]>;
<![CDATA[Anak Agung Istri Ngurah Eka Karyawati]]>
<![CDATA[ Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 1 (2023): JNATIA Vol. 2, No. 1, November 2023 ]]>
Publisher : <![CDATA[Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University ]]>
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DOI: 10.24843/JNATIA.2023.v02.i01.p04
<![CDATA[At present, people’s daily garbage is increasing day by day. How to intelligently classify garbage can save manpower and improve work efficiency. In this paper, a garbage classification model is based on. First, according to the common daily garbage category, twelve typical kinds of garbage were selected, data cleaned, labeled, and constructed a garbage dataset. Second, YOLO was built and trained on our datasets. The experimental results show that YOLO can accurately identify the garbage’s types and find out the location of garbag ]]>
<![CDATA[Analisis Sentimen pada Teks Berbahasa Bali Menggunakan Metode Multinomial Naive Bayes dengan TF-IDF dan BoW ]]>
<![CDATA[Putu Widyantara Artanta Wibawa]]>;
<![CDATA[Cokorda Pramartha]]>
<![CDATA[ Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 1 (2023): JNATIA Vol. 2, No. 1, November 2023 ]]>
Publisher : <![CDATA[Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University ]]>
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DOI: 10.24843/JNATIA.2023.v02.i01.p05
<![CDATA[Currently, digital technology is developing rapidly thus increasing the availability of textual data in the digital form. Many of the digital texts are available in Balinese. From the existing Balinese language texts, an analysis can be carried out to determine the emotional level or sentiment contained in them. Through this analysis, information will be obtained regarding sentiment towards a product or service so that it can be used as information for consideration in making decisions. To determine sentiment in textual data, more specifically unstructured data, several stages are required, one of which is feature extraction such as TF-IDF and BoW. This study will analyze the effect of TF-IDF and BoW feature extraction on the Multinomial Naive Bayes method. The test results show that the TF-IDF feature extraction provides precision, recall, accuracy, and F1-score values respectively 92.3%, 91.13%, 91.5%, and 91.38% higher than with BoW feature extraction. ]]>
<![CDATA[Identifikasi Lagu Berdasarkan Lirik Menggunakan Algoritma Boyer-Moore ]]>
<![CDATA[I Komang Gede Apriana]]>;
<![CDATA[I Gede Arta Wibawa]]>
<![CDATA[ Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 1 (2023): JNATIA Vol. 2, No. 1, November 2023 ]]>
Publisher : <![CDATA[Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University ]]>
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DOI: 10.24843/JNATIA.2023.v02.i01.p06
<![CDATA[Many people want a fast and efficient search method as technology advances. A song search is one example of this kind of search. A song is a collection of sing-along lyrics with rhythms and melodies for many to enjoy. Due to the large number of song lovers, some people are often constrained by the title of the song to be sung. This is caused by one factor, namely only memorizing some of the lyrics of the song to be sung. Given these problems, in this study a solution was developed, namely the application of identifying song titles based on input from the user's lyrics. The algorithm used by researchers in this study is the Boyer-Moore Algorithm, which is considered better in terms of matching substrings in longer texts. The research method used includes literature study, data collection, implementation, and testing. The implementation results show that the system successfully recognizes song titles with high accuracy based on the given piece of lyrics. In conclusion, this study proves that the development of a song title identification system based on snippets of lyrics using the website-based Boyer-Moore algorithm is an effective method. This system can help users recognize song titles based on the snippets of lyrics they remember with high accuracy. ]]>
<![CDATA[Perlindungan pada Citra Motif Kain Endek dengan Teknik Watermarking Menggunakan DCT Steganography ]]>
<![CDATA[Dewa Agung Ayu Mutiara Dewi]]>;
<![CDATA[I Gede Santi Astawa]]>
<![CDATA[ Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 1 (2023): JNATIA Vol. 2, No. 1, November 2023 ]]>
Publisher : <![CDATA[Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University ]]>
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DOI: 10.24843/JNATIA.2023.v02.i01.p07
<![CDATA[This research develops a steganographic watermarking technique using the DCT method to protect the Endek fabric motifs. In DCT-based steganography method for watermark embedding in images, DCT transformation is used to separate the image into DCT coefficients that represent frequency information. The embedded watermark serves as an identification mark that is difficult to remove or modify without damaging the authenticity of the original motif. Accuracy testing using PSNR and MSE yielded average PSNR (54.367dB) and MSE (0.234), indicating that this technique is effective in preserving the authenticity and integrity of the Endek fabric motifs. ]]>
<![CDATA[Perbandingan Random Forest, Decision Tree, Gradient Boosting, Logistic Regression untuk Klasifikasi Penyakit Jantung ]]>
<![CDATA[I Made Krisna Dwipa Jaya]]>;
<![CDATA[I Gusti Agung Gede Arya Kadyanan]]>
<![CDATA[ Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 1 (2023): JNATIA Vol. 2, No. 1, November 2023 ]]>
Publisher : <![CDATA[Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University ]]>
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DOI: 10.24843/JNATIA.2023.v02.i01.p08
<![CDATA[Heart disease is a condition characterized by disorders affecting the heart. These heart disorders include infections, abnormalities in heart valves, blockages in the heart's blood vessels, irregular heartbeats, and so on. According to a report by the World Health Organization (WHO) in 2019, approximately 17.9 million people died from cardiovascular diseases, with 85% of them attributed to heart attacks and strokes. The shortage of doctors and specialists can lead to negligence and the overlooking of patients' symptoms, which can result in disabilities or even death for the patients. Therefore, the need for an expert system arises, which can be utilized as a tool to classify or detect heart diseases based on patients' medical records. Based on the results of the conducted research, random forest is a fairly effective algorithm for classifying heart diseases, with a recall value of 80.6% and ROC AUC of 76.3%. ]]>
<![CDATA[Sistem Informasi Pengaduan Masyarakat Berbasis Website ]]>
<![CDATA[I Putu Krisna Megadana]]>;
<![CDATA[I Gusti Ngurah Anom Cahyadi Putra]]>
<![CDATA[ Jurnal Nasional Teknologi Informasi dan Aplikasinya Vol. 2 No. 1 (2023): JNATIA Vol. 2, No. 1, November 2023 ]]>
Publisher : <![CDATA[Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University ]]>
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DOI: 10.24843/JNATIA.2023.v02.i01.p09
<![CDATA[Public complaints are an important mechanism in maintaining accountability of the government and other organizations, as well as strengthening relations between the government and citizens. Public complaints provide an opportunity for individuals or groups to report problems, dissatisfaction, or violations they experience related to public services, corruption, human rights violations, and so on. However, in some cases in some areas it is still difficult to make complaints about the environment that occur in the community. Therefore, we have compiled this journal with the title "Website-based public complaint information system" to help the public in making complaints against local governments. The information system has of course become a very integral tool for human life, therefore the existence of a "website-based public complaint information system" can help the public easily. ]]>
