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INFORMATION SYSTEM SECURITY USING THE DISCRETE COSINE TRANSFORM (DCT) METHOD Sujarwo, Sujarwo
NEWTON: Networking and Information Technology Vol. 5 No. 1 (2025): June
Publisher : LPPM Universitas KH. A. Wahab Hasbullah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32764/newton.v5i1.5782

Abstract

Information system security is a crucial aspect in the digital era, especially for protecting sensitive data. One method to enhance data security is steganography, a technique for concealing information within digital media. This study analyzes the effectiveness of the Discrete Cosine Transform (DCT) method in digital image steganography. The research follows several stages, including literature review, system design, DCT implementation using MATLAB/Python, and performance evaluation based on Peak Signal-to-Noise Ratio (PSNR), Mean Squared Error (MSE), and Normalized Correlation (NC). Experimental results indicate that the DCT method achieves a high PSNR value (averaging above 40 dB) and a low MSE value, ensuring minimal image distortion after data embedding. Compared to the Least Significant Bit (LSB) method, DCT provides better resistance to visual analysis and is more suitable for images with transform-based compressions, such as JPEG. This study concludes that the DCT method is an effective steganography technique for enhancing information system security, despite challenges related to computational complexity and data embedding capacity. Future research may explore hybrid methods that combine DCT with other techniques to improve efficiency and robustness against various steganographic analysis attacks.
Designing and Building an Irrigation Management Information System Using the Prototype Method Kafi, Rizal; Zulfikar, Zulfikar
NEWTON: Networking and Information Technology Vol. 5 No. 1 (2025): June
Publisher : LPPM Universitas KH. A. Wahab Hasbullah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32764/newton.v5i1.6072

Abstract

In the current system, agricultural extension workers manually collect and summarize extension outcome data using spreadsheets (Microsoft Excel). The weaknesses of this manual system are errors in data entry, duplicate data, and a rather long time for recapitulation. This research aims to develop and implement a web-based Irrigation Management Information System that is integrated and easy for agricultural extension workers at the sub-district level to use. The method used in this research is Research and Development, with a prototype model that allows interaction between developers and users during the creation process. The results of functional testing on this system show that the system has met user needs and no errors were found in any of the functions. Additionally, the limited trial involved 35 users who rated the system as very easy to use. It is hoped that with this irrigation management information system, water resource management can be carried out more effectively, supporting agricultural productivity and the overall well-being of farmers.
IMPLEMENTATION OF INFORMATION SYSTEM APPLICATION POLICY TO IMPROVE THE QUALITY OF RECORDING INVENTORY GOODS AT THE CLASS I TPI CIREBON IMMIGRATION OFFICE Alamsyah, Riza; Sutrisno, Endang; Hidayat, Moh. Taufik
Journal of Social and Economics Research Vol 7 No 2 (2025): JSER, December 2025
Publisher : Ikatan Dosen Menulis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54783/jser.v7i2.985

Abstract

This study aims to identify, explore, and analyze the factors that influence the implementation of an inventory information system application in improving the quality of inventory records at the Class I Immigration Office TPI Cirebon. The implementation of this application is expected to contribute to the realization of good governance through more efficient, accurate, and transparent service and administrative management. This research uses a descriptive qualitative approach with a phenomenological method. Data collection techniques include observation, in-depth interviews, document analysis, and archival research. The informants consist of office leaders, application operators, civil servants, and community service users. Data analysis is carried out through data reduction, data presentation, and conclusion drawing. The results show that the implementation of the inventory information system application has been carried out in both internal and external services. However, it has not yet been optimal due to several challenges, such as limited access via Android devices, the unavailability of integrated service features for inventory recording, and inadequate internet bandwidth. This research provides strategic recommendations for system development to become more adaptive, efficient, and responsive to user needs.
The Effectiveness of Implementing Film Media the Physician and the Kingdom of Heaven as an Information Source in Learning Islamic Civilization History Syauqi, Khilal; Ilham, Mhd.
Majalah Ilmiah Tabuah: Ta`limat, Budaya, Agama dan Humaniora Vol. 29 No. 1 (2025): Majalah Ilmiah Tabuah : Ta'limat, Budaya, Agama, dan Humaniora
Publisher : Fakultas Adab dan Humaniora UIN Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37108/tabuah.v29i1.2363

Abstract

Penelitian ini didasarkan pada rendahnya kemampuan mahasiswa dalam mengolah informasi dalam pembelajaran Mata Kuliah Sejarah Peradaban Islam di UIN Imam Bonjol Padang. Ketika dihadapkan pada suatu permasalahan, mahasiswa masih kesulitan dalam mengolah informasi secara efektif. Penelitian ini berfokus pada kemampuan mahasiswa dalam mengintegrasikan informasi dari berbagai sumber selama proses pembelajaran. Untuk mengatasi kendala tersebut, penelitian ini bertujuan untuk meningkatkan keterampilan mahasiswa dalam mengolah informasi dengan menerapkan media film sebagai alat bantu dalam pembelajaran Sejarah Peradaban Islam, yaitu film the Physician dan film the Kingdom of Heaven. Metode yang digunakan dalam penelitian ini adalah Penelitian Tindakan Kelas (PTK) dengan mengacu pada desain yang dikembangkan oleh Kemmis dan McTaggart. Pendekatan ini mencakup empat tahap utama, yaitu: perencanaan (plan), pelaksanaan tindakan (act), pengamatan (observing), dan refleksi (reflecting). Hasil penelitian menunjukkan bahwa kemampuan mahasiswa dalam mengolah informasi mengalami peningkatan yang signifikan setelah diterapkannya media film dalam proses pembelajaran. Melalui penggunaan media film, mahasiswa menjadi lebih terbiasa dalam mengolah informasi yang diperoleh dari tayangan yang disajikan.
ZINE DESIGN AS A POTENTIAL INFORMATION MEDIA NAGREG KENDAN TOUR TO YOUNG ADULTS IN JAVA WEST Adiyasa, Vanessa; Denny Nugraha, Novian; Soedewi, Sri
eProceedings of Art & Design Vol. 11 No. 4 (2024): Agustus 2024
Publisher : Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Nagreg Kendan Village or commonly known as Kendan Village is a villagelocated in Nagreg District. Nagreg Kendan Village has plans to create a tourist village with various potentials in it, starting from the potential of the Sanghyang Anjung site which isfamous for its myths by local residents and tourists to a workshop for making bricks made from the sand of the Kendan hill itself. It is hoped that the creation of a tourist village canintroduce other potentials of Nagreg Kendan village to the wider community, especially to young adults who are interested in visiting a tourist village. To achieve this goal, theresearch method used is by conducting observations in Nagreg Kendan Village, interviews with local residents, and using literature studies related to the media that will be used. Themedia that will be used as a medium of information regarding tourism potential in Nagreg Kendan Village is art photography so that young adults are more interested in getting to know Nagreg Kendan Village better. Keywords: zine, travel journals, tourism villages, information media, art photography
DESIGNING SIGNAGE AND WAYFINDING AS INFORMATION FOR LAWANG SEWU Noll, Patrecia Dwi Maharani; Ar Razi, Aria; Ayu, Intan Kusuma
eProceedings of Art & Design Vol. 11 No. 6 (2024): Desember 2024
Publisher : Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Historical Tourism in Indonesia is one of the things that is of interest to tourists. This is due to tourists' curiosity about history - history that occurred in the past. Then historical tourism is also important for visitors to increase their opinion of the surrounding area, and visitors can better appreciate the story behind it. One example is Lawang Sewu which is located in Semarang, Indonesia. This iconic structure, known as the "Thousand Doors", serves as a reminder of Indonesia's colonial past and its journey to independence. Built during the Dutch colonial period in the early 20th century, Lawang Sewu offers architectural charm that attracts visitors from all over the world. Lawang Sewu is also a witness to the history of the development of trains in Indonesia. The historical value of Lawang Sewu is the cornerstone of Semarang's tourism industry, attracting curious tourists who want to delve into the past. By preserving this architectural gem and highlighting its historical importance, Semarang can capitalize on its cultural tourism potential, encouraging economic growth and appreciation of Indonesia's diverse cultural heritage. This research aims to create interactive signage and wayfinding for visitors so that they can easily find out where they are, and don't forget to also provide the information needed by visitors.. The research method used to analyze and obtain the required data is a qualitative method supported by interviews with experts and also questionnaires distributed related to Lawang Sewu. This Interactive Signage is aimed at the audience who are visiting Lawang Sewu with a barcode in it so that they can get information about Lawang Sewu so that the audience can learn more. appreciate the story behind Lawang Sewu, and don't forget to preserve historical buildings in Indonesia. Keywords: signage and wayfinding, environmental graphic design, Lawang Sewu, historical tourism.
Factors Affecting the Effectiveness of Accounting Information Systems in Village Credit Institutions Throughout Jembrana Regency Ni Luh Gede Putri Wulandari; Made Yenni Latrini
ePaper Bisnis : International Journal of Entrepreneurship and Management Vol. 2 No. 3 (2025): ePaper Bisnis : International Journal of Entrepreneurship and Management
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/epaperbisnis.v2i3.447

Abstract

This study explores the influence of information system quality, information technology sophistication, and personal technical capability on the effectiveness of Accounting Information Systems (AIS) in Village Credit Institutions (LPDs) in Jembrana Regency. The research adopts a quantitative approach, utilizing a survey method. Questionnaires were distributed to 63 employees from 21 LPDs that have already implemented computerized AIS. The study focuses on assessing how these three independent variables contribute to the effectiveness of AIS in the LPDs. Multiple linear regression was employed for data analysis, allowing the researcher to determine the relationship between the independent variables and the effectiveness of AIS. The respondents were selected from LPDs that had successfully integrated technology into their accounting systems. The primary objective was to understand whether system quality, IT sophistication, and personal technical capability played a significant role in improving AIS performance in these institutions. The findings of the study indicate that all three independent variables—system quality, IT sophistication, and personal technical capability—positively influence the effectiveness of AIS. Specifically, high-quality systems, advanced IT infrastructure, and employees with strong technical skills were found to enhance the operational effectiveness of AIS. This underscores the importance of these factors in ensuring the smooth functioning of AIS in LPDs. As such, LPDs are encouraged to invest in improving system quality, upgrading IT systems, and enhancing the technical skills of their staff to optimize AIS performance. Overall, the study contributes to the understanding of how technological factors can be leveraged to improve accounting processes in financial institutions, particularly in rural settings like LPDs in Jembrana Regency.
Exploring the Role of Organizational Communication in Preventing Information Delivery Errors Ridho, Deri Ainur; Wicaksana, Arief Adji; Hidayat, Rochmat; Rahmaulana, Rima; Amir, Jezzshinta
Review: Journal of Multidisciplinary in Social Sciences Vol. 2 No. 06 (2025): June 2025
Publisher : Lentera Ilmu Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59422/rjmss.v2i06.1014

Abstract

This study aims to explore the role of organizational communication in preventing communication errors that can negatively affect organizational operations. One of the primary challenges in organizations is communication errors that lead to information distortion, decision-making mistakes, reduced efficiency, and even internal conflicts. In an increasingly complex and dynamic environment, the role of effective communication becomes crucial to ensuring clear and accurate information flow at every organizational level. This research uses a qualitative approach through in-depth interviews and direct observations within public and private organizations to understand the factors influencing communication errors and ways to prevent them. Based on the findings, open communication, the use of appropriate technology, and a supportive organizational culture for two-way communication are key factors in minimizing information errors. The study’s recommendations emphasize the importance of continuous communication training and the development of more transparent communication systems in organization.
EFFECT OF INFORMATION CLARITY ON WAITING TIME AND SERVICE QUALITY ON PATIENT SATISFACTION IN JKN OUTPATIENT PHARMACY UNIT AT DR. SAIFUL ANWAR HOSPITAL CY SERVICE UNIT OF JKN DR. SAIFUL ANWAR HOSPITAL Wulandari, Meidina; Hariyanti, Tita; Ratri, Devita Rahmani
Journal of Community Health and Preventive Medicine Vol. 5 No. Issue Supplement 1 (2025): JOCHAPM Vol. 5, Issue Supplement 1, March 2025
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/

Abstract

Waiting time is one of the minimum standards in hospital pharmaceutical services. The waiting time for prescription services is measured as the interval between the submission of a prescription and the receipt of medication, which should be ≤30 minutes for non-compounded drugs and ≤60 minutes for compounded drugs. Timely service is closely related to customer satisfaction. However, prolonged waiting time for drug services still occurs at Dr. Saiful Anwar Hospital. Based on the 2023 community satisfaction index data, the score for the pharmaceutical installation was 83.88, and the lowest element was punctuality. Service quality is closely related to customer satisfaction, which is influenced by the clarity of information and services according to patients’ needs and expectations. The purpose of this study was to analyze the effect of information clarity on the length of waiting time for drug services and service quality on patient satisfaction in the JKN Outpatient Pharmacy Service Unit of Dr. Saiful Anwar Hospital. This study used a quantitative method with a cross-sectional approach. Samples were collected using consecutive sampling techniques with a total of 113 patients who accessed drug services at the JKN Outpatient pharmacy unit. The results showed that waiting time, tangibles, assurance, and empathy had a positive and significant effect on patient satisfaction. Reliability and responsiveness had a positive but not statistically significant on patient satisfaction. Among the variables, empathy had the strongest influence on satisfaction. Due to the dominant factor of empathy, it is recommended that Dr. Saiful Anwar Hospital improve its pharmaceutical services by providing training for pharmacists to deliver better and more empathetic service
Legal Challenges and Reform Proposals for Algorithmic Contracts under Indonesia’s Information and Electronic Transactions Law Tejomurti, Kukuh; Sukarmi, Sukarmi; Mahmudy, Wayan Firdaus
Jambura Law Review VOLUME 7 NO. 2 JULY 2025
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33756/jlr.v7i2.30617

Abstract

The emergence of algorithmic contracts, made or carried out by independent systems, creates difficult legal problems, especially in Indonesia's regulatory environment. This study examines whether Indonesia’s Information and Electronic Transactions Law is adequate to deal with new problems with algorithmic pricing, EAs, and automated contract creation. The article also examines the different types of algorithmic contracts and how black-box algorithms are used in dynamic pricing in business competition. It shows how unclear the law is about agency, consent, and accountability.  Using doctrinal legal research combined with conceptual, comparative, and interdisciplinary approaches, the study finds that Indonesia's Information and Electronic Transactions Law and Competition Law have become inadequate in responding to developments in AI-driven transactions. It suggests a legal framework that does not favour any one technology and recognises algorithms as helpful agents. It also calls for changes to the law to clarify how electronic agents can work together and negotiate. This method ensures that businesses are held accountable and that the law is clear in the age of self-driving digital contracts.

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