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Doni Abdul Fatah
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simantec@trunojoyo.ac.id
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+6285648688506
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simantec@trunojoyo.ac.id
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Jurusan Teknik Informatika - Fakultas Teknik - Universitas Trunojoyo Madura Jl. Raya Telang PO BOX 2 Kamal, Bangkalan 69162
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Kab. bangkalan,
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INDONESIA
Jurnal Simantec
Published by Universitas Trunojoyo Madura
ISSN : 20882130     EISSN : 25024884     DOI : https://doi.org/10.21107/simantec.v8i2
Core Subject : Science,
Computer Science & IT
Jurnal Simantec merupakan Jurnal Ilmiah dibawah naungan Program Studi Manajemen Informatika, Fakultas Teknik Universitas Trunojoyo Madura. Jurnal Simantec diterbitkan pertama kali pada bulan Desember 2009, dan diterbitkan dua kali dalam setahun. Jurnal Simantec berisi artikel-artikel ilmiah yang meliputi bidang-bidang : informatika, Sistem Informasi, Multimedia, Mekatronika, Jaringan serta hasil penelitian lainya yang terkait dengan bidang-bidang tersebut.
Arjuna Subject : Ilmu Komputer (semua kategori) - Sistem Informasi
Articles 202 Documents
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Design of information system architecture using TOGAF Architecture Development Method at Rumah Sakit Haji Jakarta Prasetyo, Adit; Waspodo, Bayu
Jurnal Simantec Vol 14, No 1 (2025): Jurnal Simantec Desember 2025 (Article in Progress)
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/simantec.v14i1.29807

Abstract

The Information and Technology (IT) Subdivision of Rumah Sakit Haji Jakarta plays a crucial role in supporting operations but faces serious constraints due to the dominance of manual service processes. Reliance on unstructured recording methods and non-integrated systems leads to various inefficiencies, such as hindered issue tracking, the risk of data loss, and slow service responses that impact the productivity of other units. This research aims to address these problems by producing an applicable enterprise architecture blueprint. Using a qualitative case study approach, this research applies The Open Group Architecture Framework (TOGAF) Architecture Development Method (ADM) up to the Information Systems Architecture phase. Data collection was conducted through in-depth interviews with key stakeholders, process observation, and internal document studies to obtain a comprehensive understanding. The result of this research is a structured enterprise architecture design, encompassing business, data, and application architectures. The primary artifacts produced include as-is and to-be business process models, gap analysis, and a functional design for an integrated information system consisting of a helpdesk module, inventory management, digital maintenance, and IT performance reporting. As a result, this validated blueprint provides a clear strategic guide for the hospital to implement appropriate technology solutions. The implementation of this architecture has significant potential to realize more effective, measurable, and transparent IT service management, which ultimately supports the hospital’s overall digital transformation agenda.Keywords: Enterprise Architecture, TOGAF ADM, Rumah Sakit Haji Jakarta, Helpdesk Information System, Information Systems Architecture.
Implementation of Least Significant Bit Steganography with Caesar Cipher Layout Dvorak web-based Kurnia, Ridhwan Nadif; Pradiptha, Al Diras; Permana, Muhammad Fajar Jati; Dipradja, Kimberly Alfa; Afrizal, Rizki; Pradeka, Deden; Khaerunnisa, Zahra
Jurnal Simantec Vol 14, No 1 (2025): Jurnal Simantec Desember 2025 (Article in Progress)
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/simantec.v14i1.28794

Abstract

Secure data communication is an essential requirement in the digital age, especially in the exchange of confidential information. One of the main problems is the potential for eavesdropping by unauthorised parties who can access open messages. To overcome this, this research aims to develop a website-based system that combines the Least Significant Bit (LSB) method steganography technique and the Caesar cipher method cryptography with the Dvorak keyboard layout to increase data security. The research method used is prototype method with the stages of concept formulation, prototype design, and continuous evaluation. The system was tested by inserting the word ‘TEKKOM’ into a digital image and measuring the quality using Mean Squared Error (MSE) and Peak Signal-to-Noise Ratio (PSNR). The test results show an MSE value of 0.0001466049 and PSNR of 86.47 dB, which means that the visual quality of the image does not decrease significantly and the message is successfully inserted and extracted without errors. The Dvorak keyboard layout adds a layer of security through uncommon input patterns, making it difficult for outsiders to analyse. Thus, the system is able to provide a secure, efficient, and practical solution for web-based information hiding without the need for a database and is still user-friendly.Keywords: Dvorak, Steganography, Caesar Cipher, Least Significant Bit, Website

Page 21 of 21 | Total Record : 202

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