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INDONESIA
Jurnal Informatika dan Rekayasa Perangkat Lunak
Published by Universitas Teknokrat Indonesia
ISSN : 27973492     EISSN : 27972011     DOI : https://doi.org/10.33365/jatika
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering
Jurnal Informatika dan Rekayasa Perangkat Lunak (JATIKA), an Indonesian national journal, publishes high quality research papers in the broad field of Informatics and Computer Science, which encompasses software engineering, information system development, computer systems, computer network, algorithms and computation, and social impact of information and telecommunication technology.
Arjuna Subject : Ilmu Komputer (semua kategori) - Ilmu Komputer (Lain-Lain)
Articles 31 Documents
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Decision Support System Based on RECA and COPRAS Methods in Performance Evaluation of Non-Permanent Employees Asistyasari, Ayuni; Chandra, Iryanto; Hadad, Sitna Hajar; Nuryaman, Yosep; Wang, Junhai
Jurnal Informatika dan Rekayasa Perangkat Lunak Vol. 6 No. 3 (2025): Volume 6 Number 3 September 2025
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jatika.v6i3.848

Abstract

The evaluation of the performance of non-permanent employees is a significant challenge for organizations due to the high turnover rate and the limited tenure of these employees. The manual evaluation processes often lead to biases, inconsistencies, and a lack of accuracy in supporting decision-making. This research aims to develop a decision support system based on the RECA and COPRAS methods to produce a more objective, transparent, and systematic evaluation. RECA is used to determine the criteria weights proportionally based on each contribution, while COPRAS functions to assess and provide a final ranking of employee performance by considering both benefit and cost-type criteria. The research results show that this system is capable of sorting non-permanent employees fairly with ranking results of E-AS-05 with a score of 100%, E-AS-03 with a score of 97.32%, E-AS-01 with a score of 94.03%, E-AS-02 with a score of 88.34%, and E-AS-04 with a score of 82.19%. The integration of the RECA and COPRAS methods not only enhances the effectiveness of performance evaluation but also provides a tangible contribution to supporting more efficient and sustainable human resource management.
Soft Voting Based Optimized Ensemble for Migraine Type Classification Misriati, Titik; Aryanti, Riska; Leidiyana, Henny
Jurnal Informatika dan Rekayasa Perangkat Lunak Vol. 6 No. 3 (2025): Volume 6 Number 3 September 2025
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jatika.v6i3.861

Abstract

The accurate classification of migraine subtypes is a complex challenge in neurology, hindered by symptomatic similarities between types. This complexity necessitates advanced computational tools to support diagnostic precision. This study aims to develop and evaluate an optimized soft voting ensemble classifier to automate this multi-class classification task effectively. The methodology involved training eight base models—including Neural Network, Random Forest, and Gradient Boosting—on a publicly available migraine dataset, with an 80-20 train-test split. The top three performers were integrated into a soft voting ensemble, which aggregates their predicted probabilities to enhance decision robustness. Model performance was rigorously assessed using accuracy, precision, recall, F1-score, and AUC-ROC metrics. The results demonstrated that the proposed ensemble achieved superior performance, with an accuracy of 91.67% and an F1-score of 91.50%, outperforming all constituent models. Furthermore, the ensemble attained near-perfect AUC-ROC values across multiple classes, confirming its strong discriminatory capability. The study concludes that the soft voting ensemble is a highly effective and reliable approach for migraine subtype classification, offering significant potential as a decision-support tool in clinical environments. Future work will focus on hyperparameter optimization, explainability, and validation with larger multi-centric datasets to facilitate clinical adoption.
Design of Android-Based Food Ordering Information System at RM. Solideo Kuliner Pesik, Kevin Jeremi; Montolalu, Chriestie Ellyane Juliet Clara; Kalengkongan, Wisard Widsli; Lapihu, Dodisutarma; Soewoeh, Christian Alderi Jeffta; Langi, Yohanes Andreas Robert; Takaendengan, Mahardika Inra
Jurnal Informatika dan Rekayasa Perangkat Lunak Vol. 6 No. 3 (2025): Volume 6 Number 3 September 2025
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jatika.v6i3.308

Abstract

The culinary industry in Indonesia has experienced significant growth, yet many restaurants still rely on manual ordering systems. This study addresses the operational inefficiencies at RM Solideo Kuliner, where manual ordering causes long queues, order recording errors, and customer dissatisfaction. The research aims to design an Android-based online food ordering information system to overcome these challenges. The Agile methodology was employed for system development due to its flexibility in accommodating changing business requirements. Data collection involved interviews with restaurant stakeholders and direct observation of existing processes. The system was developed using Flutter framework and Dart programming language, with Firebase serving as the backend database. The resulting Android application enables customers to register, login as guests, browse menus, place orders, select payment methods, and track order status in real-time. Black Box testing confirmed that all features function according to specified requirements. Usability evaluation with 10 respondents yielded positive feedback, with 90% rating the application as easy to use and having an attractive interface. The implementation successfully improved operational efficiency by reducing order processing time by 60% and minimizing recording errors to less than 2%. This digital transformation demonstrates the potential for technology adoption in enhancing customer experience and business operations in the culinary sector.
Design and Development of A Web-Based Thesis Administration System to Improve the Efficiency of Academic Services Kalumata, Yoel Cleaver; Pinontoan, Benny; Takaendengan, Mahardika Inra; Kalengkongan, Wisard Widsli; Ngangi, Stephano Caesar Wenston; Lapihu, Dod
Jurnal Informatika dan Rekayasa Perangkat Lunak Vol. 6 No. 3 (2025): Volume 6 Number 3 September 2025
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jatika.v6i3.352

Abstract

This research focuses on developing a web-based thesis administration system using the Rapid Application Development (RAD) method to enhance the efficiency of academic services in the Information Systems Study Program. The system is intended to replace manual procedures that are often slow and error-prone, aiming to streamline administrative tasks and improve service quality.The development follows the RAD stages: needs planning, system design, development, and implementation. Data collection methods include literature studies, observations, and questionnaires to ensure the system meets user needs. Research findings show that the system successfully meets the requirements of users within the study program. Testing results demonstrate a notable improvement in administrative efficiency compared to previous manual processes. In conclusion, the RAD-based web system effectively improves academic service delivery by minimizing delays and simplifying administrative processes.
Implementation of IOT-Based Chili Plant Watering System Prototype with BLYNK Control Rumondor, Cessi; Mananohas, Mans Lumiu; Arundaa, Rillya; Alfonsius, Eric
Jurnal Informatika dan Rekayasa Perangkat Lunak Vol. 6 No. 3 (2025): Volume 6 Number 3 September 2025
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jatika.v6i3.483

Abstract

This research aims to design and implement a prototype of an Internet of Things (IoT)-based dual-mode irrigation system for chili plants, integrating automatic and manual control via the Blynk application. The background of this study is the need for efficient water management in chili farming, which is often constrained by traditional manual irrigation methods. The system is built using a NodeMCU ESP32 microcontroller connected to a capacitive soil moisture sensor, DHT11 sensor, and relay modules that control water and fertilizer pumps. The research method uses a prototyping model to design, build, and test the irrigation system. Real-time sensor data is transmitted to the Blynk dashboard, allowing farmers to monitor environmental conditions and control the pumps either automatically (based on threshold logic) or manually via smartphone. The calibration results show that the soil moisture sensor achieves 93.5% accuracy. Testing using the black-box method confirms that all system components function as expected, with responsive performance both in automatic and manual modes. The findings demonstrate that the dual-mode IoT-based irrigation system can maintain optimal soil moisture levels while providing flexibility for farmers to override the system based on real-world conditions. This hybrid solution offers a practical approach to modern agriculture, improving decision-making and efficiency in crop watering practices.
Improving LLM-assisted Requirement Validation Using Persona-based Prompting Husen, Jati Hiliamsyah; Sabariah, Mira Kania; Fadhlurohman, Daffa Hilmy; Faqih, Adam Rafif
Jurnal Informatika dan Rekayasa Perangkat Lunak Vol. 6 No. 3 (2025): Volume 6 Number 3 September 2025
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jatika.v6i3.496

Abstract

Requirements validation is an important activity of requirements engineering. Large language models (LLMs) have been proposed to improve the efficiency of requirements validation activity. However, the LLMs validate generally without considering the stakeholders’ characteristics of the software development projects that will use the requirements. In this paper, we propose PReVAL, a novel persona-driven LLM-based validation approach that utilizes persona to reflect the characteristics of stakeholders in the prompting of LLMs. A comparative experiment demonstrates the benefits of PReVAL in terms of consistency in validating requirements based on the persona. However, introducing a persona also increases unnecessary aspects of the validation result.
Developing Web-Based Archiving System with XP: Study Case on UPT Kearsipan Universitas Sam Ratulangi Runtu, Egidius C.; Alfonsius, Eric; Pinontoan, Benny
Jurnal Informatika dan Rekayasa Perangkat Lunak Vol. 6 No. 3 (2025): Volume 6 Number 3 September 2025
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jatika.v6i3.612

Abstract

UPT Kearsipan Universitas Sam Ratulangi, a technical implementation unit responsible for archive management, faces challenges with traditional manual correspondence processes, leading to potential data loss, recording errors, and slow information distribution. This research aimed to develop a web-based Archiving Correspondence Information System (ARCIS) to address these issues. The system was developed using the Extreme Programming (XP) method, emphasizing frequent iterations, active user involvement, and continuous testing. Built with PHP and MySQL technologies, ARCIS includes features such as incoming and outgoing letter management, disposition tracking, classification, institution and user data management, and notification alerts. The XP method, with its rapid adaptation to changing user needs, was chosen to create a responsive and high-quality solution. Black box testing confirmed that all system functionalities perform effectively and meet user needs, achieving a 100% success rate in Iteration 1 and 83.33% in Iteration 2. This system provides a more effective, efficient, and organized solution for managing letters and archives.
Determining Strategic Locations for MSMEs in Sario District Using SAW Ranking with AHP Weighting Arundaa, Rillya; Weku, Winsy Ch. D.; Giasi, Sri Yunda
Jurnal Informatika dan Rekayasa Perangkat Lunak Vol. 6 No. 4 (2025): Volume 6 Number 4 Desember 2025
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jatika.v6i4.623

Abstract

Micro, Small, and Medium Enterprises (MSMEs) play an essential role in the Indonesian economy due to their significant contribution to national economic growth as well as their ability to create jobs for local communities. The long-term success of MSMEs is not only determined by the products or services they offer, but also by the strategic business locations they select. However, identifying strategic locations is challenging due to the lack of structured tools, objective evaluation of multiple criteria, and limited use of integrated decision-support models. This research aims to determine the most strategic location for the development of MSMEs in Sario District, Manado City, by considering several key factors, including accessibility, population density, rental costs, community income levels, and infrastructure availability. These issues highlight the need for a systematic and objective approach to support decision-making in location selection. The problem faced in determining the location is the difficulty of integrating all criteria objectively and systematically. For this reason, the Analytical Hierarchy Process (AHP) method is employed to determine the weight of each criterion. In contrast, the Simple Additive Weighting (SAW) method is utilized to rank the alternative locations. The analysis found Sario Tumpaan (A4) as the most strategic location and Sario (A3) as the least. Data were obtained from surveys, interviews, questionnaires, and agency documents. The AHP–SAW-based Decision Support System effectively provided objective and consistent recommendations, with Sario Tumpaan serving as a benchmark for future evaluations and development.
Website-Based Running Sports Information System For Communities In North Sulawesi Using Extreme Programming Method Syaban, Inayah; Manurung, Tohap; Kalua, Aditya; Alfonsius, Eric
Jurnal Informatika dan Rekayasa Perangkat Lunak Vol. 6 No. 4 (2025): Volume 6 Number 4 Desember 2025
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jatika.v6i4.692

Abstract

The community in North Sulawesi has shown a strong interest in running, as evidenced by the increasing number of running communities and events. However, the absence of an integrated platform that provides information about running routes, communities, and events has become a challenge for runners in accessing information efficiently. This study employs the Extreme Programming method and aims to develop a web-based information system that delivers comprehensive information related to running sports. The website features key components such as community profile pages, a running event calendar, and running route locations, complete with maps, route descriptions, track lengths, difficulty categories, photo galleries, and supporting facilities like toilets and resting spots. The displayed information is sourced from various local communities and is systematically organized to ensure easy access for the public. Additionally, the website includes a contact page that allows users to provide suggestions or feedback to the admin. It also features a function that enables event organizers to directly submit event data and running route locations into the system through the contact page. This system is expected to help the community access information more easily and increase participation in running activities throughout North Sulawesi
Development of an IoT-Based Chicken Manure Management System Prototype for Efficiency and Sustainability Bambang; Simanjuntak, Henry; Widyastuti, Akni; P, Panji; Saputra, Kurniawan; Jaya, Tri Sandhika
Jurnal Informatika dan Rekayasa Perangkat Lunak Vol. 6 No. 4 (2025): Volume 6 Number 4 Desember 2025
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jatika.v6i4.876

Abstract

Increasing the production scale of laying hen farms results in significant manure waste, thus posing challenges to animal and human health, as well as environmental quality. To address these issues, this study aims to develop a prototype of an Internet of Things (IoT)-based multilevel manure management system to improve operational efficiency and support farm sustainability. The study used a method that included needs analysis, design, implementation, and testing with a blackbox testing approach. The system was designed using the DS3231 RTC module for automatic scheduling, the MQ2 sensor for air quality detection, the ESP8266 microcontroller as the control center, the BTS7960 driver as the current regulator, and the DC motor and conveyor as actuators that drive manure removal, with monitoring results displayed on the LCD. The test results showed that all components functioned as designed: the RTC was able to execute the schedule on time, the MQ2 sensor detected the gas threshold accurately, the ESP8266 processed data and sent instructions properly, the BTS7960 delivered a stable current, the DC motor and conveyor worked according to the set duration. This study provides practical implications for modern farm management through the application of the environmentally friendly smart farming concept.

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