Jurnal Teknologi Dan Sistem Informasi Bisnis

Implementation of Real-Time Drinking Water Quality Monitoring System Based on IoT Technology

Ivan Chatisa — 2026-04-03

Deterioration in drinking water quality is often difficult to detect visually because changes in physical and chemical parameters are not always immediately apparent. Water with high Total Dissolved Solids (TDS), abnormal pH values, or increased turbidity may pose health risks if consumed continuously. Therefore, a monitoring system is required to provide rapid and accurate information about water conditions. This study aims to develop an Internet of Things (IoT)-based drinking water quality monitoring system capable of real-time monitoring. The proposed system uses three main sensors pH, turbidity, and Total Dissolved Solids (TDS) to measure water acidity, turbidity, and dissolved solids content. Sensor data are processed using an ESP32 microcontroller and transmitted via the internet to a web-based dashboard, where the data are visualized in real-time graphs. The system also provides alert notifications through a Telegram bot when parameter values exceed the safe limits. Experimental results show that the system successfully monitors water quality in real time. Tests conducted on four water samples indicate that the TDS value of bottled water ranges from 119–130 ppm, while municipal water reaches 304.28 ppm, both below the 500 ppm threshold. The pH values range from 7.12 to 7.95, which remain within the standard range of 6.5–8.5. However, the turbidity of municipal water reaches 8.21 NTU, exceeding the allowable limit of 5 NTU. These results demonstrate that the system can effectively detect changes in water quality and provide early warnings through the dashboard and Telegram notifications.

Analisis Dampak Teknologi Pembayaran Digital Terhadap Sistem Transaksi Modern Pengguna Generasi Z

Fadilah Falah Syifa — 2026-04-03

The development of digital technology has driven significant changes in the financial transaction system, particularly through the implementation of digital payment technology. One of the innovations that is developing rapidly in Indonesia is the Quick Response Code Indonesian Standard (QRIS), which is designed as a national standard for QR code-based digital payments. This article aims to analyze the mechanism of QRIS technology, the technological factors that drive its adoption among Generation Z, and the positive and negative impacts of its use on modern transaction systems. The research method used is a Systematic Literature Review by examining various scientific articles, official reports, and relevant publications related to digital payment technology and the usage behavior of Generation Z. The results of the study show that QRIS is supported by interoperability technology, an encryption-based security system, and integration with mobile devices that make transactions faster, more practical, and efficient. The characteristics of Generation Z as digital natives with high smartphone usage intensity are the main factors in the high level of QRIS adoption. However, the use of QRIS also presents challenges, such as the potential for increased consumptive behavior, data security risks, and limited digital literacy among some users. Therefore, the development of digital payment technology needs to be balanced with strengthening system security and increasing digital literacy to maximize the benefits of QRIS in supporting modern transaction systems and the national digital economy.

Smart Health Monitoring: Detak Jantung Berbasis IoT Menggunakan ESP32

Jimmie . — 2026-04-03

This research was motivated by the need for an Internet of Things (IoT)-based heart rate monitoring system that is capable of working in real-time and has a level of accuracy comparable to standard medical devices, because previous research still focused on functional aspects without in-depth quantitative analysis. The purpose of this research is to design and implement an IoT-based smart health monitoring system using an ESP32 microcontroller and a MAX30100 sensor for real-time heart rate monitoring and to evaluate system performance. The method used is a prototype method that includes the stages of communication, quick plan, modeling quick design, construction of prototype, and deployment delivery and feedback. The analysis technique used is a descriptive analysis of test data by observing heart rate (BPM) and oxygen levels (SpO₂), then classifying the user's condition into normal, low, or high categories based on predetermined standards. The results of the study show that the system is able to read, display, and transmit heart rate data in real-time through the Blynk application and provide automatic notifications via Telegram. In addition, the system can classify user conditions well so that it can be used as a practical and effective solution for independent and remote heart health monitoring.

Analysis of Agenda Monitoring System Governance with the COBIT 2019 Framework in the DSS01 Domain

Abdurrahman Harits — 2026-04-03

An agenda monitoring system plays a strategic role in supporting the effectiveness of leadership performance, particularly ensuring that every organizational activity is managed in a structured and measurable manner. For this system to operate optimally, a comprehensive evaluation of its management and implementation mechanisms is required in accordance with applicable information technology governance standards. This study used the Capability Level Assessment methodology, with the primary objective of measuring process capability levels based on five subdomains within DSS01, namely DSS01.01 to DSS01.05.

Data collection was conducted through questionnaires distributed to staff using the system. The data was then analyzed quantitatively to obtain CLI (Capability Level Indicator) values as a benchmark for achievement. The analysis showed that three subdomains—DSS01.01, DSS01.02, and DSS01.03—had reached capability level 4, with DSS01.01 even approaching level 5. However, the other two subdomains—DSS01.04 and DSS01.05—remained at level 3, indicating a gap between the established capability targets.

The study's conclusions confirm that the system has generally performed well, but still requires improvement, particularly in incident and problem management. Recommendations include developing standard operating procedures (SOPs), implementing a ticketing system, training human resources, and conducting regular evaluations. The implementation of COBIT 2019 has proven effective in providing guidance for evaluating and improving IT governance, particularly in the government sector.

Analisis Pemanfaatan Platform GitHub sebagai Alat Kontrol Versi dan Media Deployment Website

Miftah Faroq Santoso — 2026-04-09

Pengembangan website statis HTML sering menghadapi masalah pengelolaan versi kode yang manual dan risiko kehilangan data. Penelitian ini bertujuan menganalisis efektivitas platform GitHub sebagai alat kontrol versi dan media deployment menggunakan fitur GitHub Pages. Metode penelitian menggunakan Research and Development (R&D) dengan studi kasus pembuatan website portofolio. Hasil penelitian menunjukkan bahwa integrasi sistem Git berhasil menciptakan dokumentasi riwayat perubahan kode yang terstruktur, mengeliminasi risiko overwriting data. Fitur GitHub Pages terbukti menyediakan solusi deployment cepat, gratis, dan otomatis melalui perintah git push. Kesimpulannya, GitHub efektif berfungsi sebagai solusi terintegrasi (all-in-one) yang mampu meningkatkan efisiensi kerja dan menekan biaya operasional pengembangan website statis.

Evaluasi Kepuasan Pengguna Website Pemerintah sebagai Media Layanan Informasi Publik

Fiby Nur Afiana — 2026-04-16

The government website serves as a medium for disseminating public information, providing transparency, and improving the quality of public services. However, in reality, some people still experience difficulties in accessing the government website, so an evaluation is needed to determine the level of user satisfaction with the services provided. This study aims to trigger user satisfaction with the Purbalingga Regency Government website using the End User Computing Satisfaction (EUCS) method. This method measures user satisfaction based on five main dimensions: content, accuracy, format, ease of use, and timeliness. The study was conducted through several stages: problem identification, data collection using questionnaires to the public as website users, and data analysis using the EUCS method. The results of the study indicate that partially there are two independent variables that influence user satisfaction, while the other three variables do not have a significant effect. However, simultaneously, all five variables have a significant influence on user satisfaction. The results of this study are expected to be used as evaluation material for local governments in improving the quality of website services to the public

Implementasi Sistem Deteksi Defacement Otomatis pada Website Pemerintah Menggunakan N8N

Faisal Anwar — 2026-04-17

Advances in information technology have encouraged the use of websites as a means of public services in various sectors. One sector that utilizes websites to support its services is the government sector. However, in its implementation, this system faces cybersecurity challenges, namely defacement attacks, which involve unauthorized changes to the appearance or content of a website that are often detected too late and can erode public trust. This research aims to develop a system capable of detecting indications of defacement attacks automatically and more quickly. The method applied in this research is a system experiment approach, which utilizes the n8n workflow automation platform, operated on a scheduled basis via schedule triggers. This system is tasked with monitoring website domains by applying analytical techniques based on keyword matching to page content that is potentially subject to change. The monitoring data is then processed using a function node to match specific keywords, such as "judol," "bokep," "gacor," and "slot," which frequently appear in defacement cases. Once keywords are detected, the system then sends a warning message to the administrator via Discord. The results show that the system is capable of automatically detecting keyword occurrences and sending a warning message via Discord webhook to the administrator when a change in website content is identified. This system also helps speed up the verification process by providing direct links to related pages so that handling can be done more quickly and effectively.

Marketing Strategy Analysis of Domba Reborn Car Wash Salatiga Using the TOWS MATRIX Method

Ariel Putra Umbu Saga Ludjuwara — 2026-04-17

This study is motivated by the increasing competition in the car wash service industry in Salatiga and the suboptimal implementation of digital marketing strategies at Domba Reborn Car Wash. This study aims to analyze and formulate appropriate marketing strategies to improve business competitiveness. The method used is a qualitative descriptive approach with a case study. Data were collected through interviews, observations, and documentation. The data analysis technique was conducted by identifying internal factors (strengths and weaknesses) and external factors (opportunities and threats), which were analyzed using the TOWS Matrix method. The results indicate that the business has strengths in social media utilization, supporting facilities, and additional services. However, weaknesses include limited human resources, suboptimal marketing strategies, and low brand awareness. Opportunities arise from the increasing number of vehicles, while threats come from competitors. Recommended strategies include optimizing digital promotion, improving service quality, developing consistent content strategies, and creating customer loyalty programs.

Keywords: marketing strategy, digital marketing, TOWS Matrix, SMEs, car wash service

Evaluasi Dan Perancangan Rekomendasi Tata Kelola Teknologi Informasi Mengguunakan Cobit 2019

Yuliana Sangka — 2026-04-17

The development of Information Technology (IT) currently encourages companies or organizations to optimize and improve operational efficiency and service quality. Cafe XYZ is one of the businesses engaged in the culinary field that currently utilizes IT in managing sales data and business operations. However, in its implementation, it still does not use appropriate standards, causing operational processes to be slow, such as the cashier section often experiences errors in recording transactions and often experiences data loss. This study aims to provide recommendations for improvements based on the COBIT 2019 standard. The method used in this study is the COBIT 2019 framework by measuring the level of IT process capabilities expected with the current one, which is measured using the COBIT 2019 Toolkit and questionnaires. The results of the study indicate that there is a gap between the current level of IT process capabilities and those expected in the APO12 process objective and DSS01, DSS03 and DSS05. Therefore, IT governance improvements are needed through strengthening security mechanisms and incident handling. With these recommendations, it is hoped that IT management at Cafe XYZ can be effectively improved

Short Term Duck Egg Price Prediction in Blitar City Using ARIMA

Hidayatul Munawaroh — 2026-04-17

Eggs are an essential food commodity for all segments of society, making price stability crucial as it affects consumers’ purchasing power and the economic welfare of farmers. Duck eggs, in particular, tend to experience price fluctuations due to imbalances between high demand and limited supply, along with other contributing factors. This study aims to forecast short-term duck egg prices using the Autoregressive Integrated Moving Average (ARIMA) method. The data were collected from Blitar City, which is known as the highest egg-producing region in East Java. The results show a Mean Absolute Percentage Error (MAPE) value of 5.39%, indicating good predictive accuracy. Based on the model, the average predicted price of duck eggs is expected to range from IDR 1,900 to IDR 2,075 in the upcoming period.