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All Journal Prosiding Snastikom Jurnal Ilmiah Sistem Informasi dan Ilmu Komputer Jurnal Ilmu Komputer dan Sistem Informasi
Andi Marwan Elhanafi
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Computer Science & IT Industrial & Manufacturing Engineering Library & Information Science

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Perancangan Aplikasi Pengamanan Pesan Teks Menggunakan Algoritma Kombinasi TTVC Dan OTP Berbasis Android Studio Ratih Ningtyas; Andi Marwan Elhanafi; Mufida Khairani
SNASTIKOM Vol. 1 No. 01 (2022): SEMINAR NASIONAL TEKNOLOGI INFORMASI & KOMUNIKASI (SNASTIKOM) 2022
Publisher : Unit Pengelola Jurnal Universitas Harapan Medan

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

Abstract

Operating systems for mobile devices are growing. Android is a mobile operating system that is now very popular and widely used by people. For the purposes of the security aspect, Android has also provided specifically for cryptographic functions, such as encryption, decryption, and so on. Insecure message delivery can occur because when sending, the message sent is in the form of an original message so that if a message is taken from the delivery line, the message will be known by unauthorized parties. So we need a security on a message data. Encryption and decryption can be used to make messages so that they cannot be read or understood by other people who do not have access rights. The technique of securing data and information is known as cryptography. The use of the Triple Transposition Vigenere Cipher (TTVC) algorithm has been carried out on SMS security (Short Message Service) in order to maintain the integrity and security of the message content and cover gaps in SMS security. The message sent will be encrypted using the Triple Transposition Vigenere Cipher first so that the contents of the message can be read by the sender and recipient. Based on what has been discussed above the author will design a Text Message Security Application Using a Combination Algorithm of Triple Transposition Vigenere Cipher and One Time Pad Based on Android Studio to provide security for messages from unauthorized parties.
Perancangan Animasi 3d Kisah Perjalanan Isra’ Mi’raj Menggunakan Software 3DS Max Sebagai Media Pengenalan Kepada Anak Usia Dini Nabila Ayu Ardiningsih; Andi Marwan Elhanafi; M. Taufik Batubara
Jurnal Ilmu Komputer dan Sistem Informasi Vol. 2 No. 1 (2023): Januari 2023
Publisher : LKP Unity Academy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70340/jirsi.v2i1.47

Abstract

In the era of increasingly developing technology, the advancement of multimedia technology, especially in the field of education, forces us to follow its development, one of the multimedia technologies used in education is animation, animation is used as a tool in the learning process, animation can also be used as a learning medium. interesting for early childhood education. The purpose of making this animation in 3D is to provide information about the story of the journey of Isra 'Mi'raj Prophet Muhammad SAW. By using the Frame by frame animation method this will be packaged into a video learning media for early childhood that is interesting and easy to understand.
Analisa Histogram dan PSNR Pada Citra True Color Dalam Pengamanan Teks Menggunakan Spread Spectrum dan LSB Rika Humayrah; Andi Marwan Elhanafi; M. Taufik Batubara
Jurnal Ilmu Komputer dan Sistem Informasi Vol. 2 No. 1 (2023): Januari 2023
Publisher : LKP Unity Academy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70340/jirsi.v2i1.48

Abstract

Security of confidential text messages is very important to protect the contents of messages from irresponsible parties. For this reason, the importance of awareness in terms of data security in the current digital era is marked by the development of data security applications. In this study, histogram and PSNR analysis will be carried out in data security applications. The purpose of this analysis is to determine the changes in the histogram and PSNR values of the image that has been inserted a text message. The results of the message insertion in the true color image using the spread spectrum method and the least significant bit visually do not show any change. The number of inserted characters affects the histogram graph, the more the number of characters inserted, the more visible the graph changes in the histogram. The resulting stego image meets the fidelity and recovery criteria. It is evident from the resulting PSNR value, namely PSNR > 30db. Changes in the image extension are one of the factors that cause the PSNR value. It is proven by the .jpg image extension which has the lowest MSE of 0.00251 and the highest PSNR of 74,12625db.
Penerapan Model Machine Learning Algoritma Gradient Boosting dan Linear Regression Melakukan Prediksi Harga Kendaraan Bekas Leriansyah Putra Nasyuli; Imran Lubis; Andi Marwan Elhanafi
Jurnal Ilmu Komputer dan Sistem Informasi Vol. 2 No. 2 (2023): Mei 2023
Publisher : LKP Unity Academy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70340/jirsi.v2i2.56

Abstract

The increase in the number of new car releases coupled with the increasingly massive advertisements about the latest cars in the city of Medan, makes consumers or the public more interested and encouraged to be able to exchange (sell) their cars and replace them with the latest cars, so this creates used cars that are still suitable for use to be re-sold and bought to other consumers so that it makes the marketing of used cars very large. This is proven by the large number of requests for used car purchases in the city of Medan to meet their needs for four-wheeled vehicles. Used vehicles, especially 4-wheeled vehicles, have varying prices and are always different from one seller to another, which causes confusion for buyers about used car prices. To overcome this problem, the authors use data mining techniques to predict used vehicles, especially 4-wheeled vehicles. The results applied are make predictions using the gradient boosting algorithm and the linear regression algorithm which produces used car predictions.
Rancang Bangun Sistem Informasi indonesia Senti Harahap, Vira Yuanda Harahap; Ihsan Lubis; Andi Marwan Elhanafi
Jurnal Ilmu Komputer dan Sistem Informasi Vol. 2 No. 3 (2023): September 2023
Publisher : LKP Unity Academy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70340/jirsi.v2i3.67

Abstract

CV. Medan which is located at Jalan Asia Mega Mas Blok BB No. 6, the second in the city of Yogyakarta. This company has its own product brands, namely Xidol and Eko. This company has many employees so that the performance of the company's employees must be measured properly, measuring employee performance is very important for future evaluation and planning. Evaluation of employee performance absolutely must be done to determine the achievements to be achieved by each employee. If the employee succeeds in achieving the desired target, can create a conducive atmosphere, and can satisfy all parties involved, then the employee can get a proper reward. For this reason, it is necessary to process employee appraisal data which can help make it easier for a superior to make a decision related to selecting an exemplary employee by using the Simple Addtive Weighting (SAW) method in order to be time efficient in selecting exemplary employees.
Sistem Monitoring Tumbuh Kembang Anak Berbasis Web Menggunakan Metode Rapid Application Development : Studi Kasus: UPT Puskesmas Medan Johor Syifaa Salsabiila Putri; Ahmad Zakir; Andi Marwan Elhanafi
Jurnal ilmiah Sistem Informasi dan Ilmu Komputer Vol. 5 No. 3 (2025): November: Jurnal ilmiah Sistem Informasi dan Ilmu Komputer
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/juisik.v5i3.1515

Abstract

Posyandu services as part of community -based health efforts still face challenges in data management in posyandu activities that are mostly carried out manually, such as recording toddler data, immunization schedules, and monthly reports that result in data irregularities, information duplication, and delays in services. This has an impact on time efficiency, accuracy of recording, and difficulties in reporting and monitoring children's growth and development. This study aims to develop a web -based health monitoring monitoring system and growth and development of children at the Medan Johor Puskesmas UPT. The importance of this research is based on the need for information systems that are efficient, accurate, and can be accessed in real-time by Posyandu cadres, heads of puskesmas, and parents of toddlers. The main objective of this study is to design and implement a web -based system that can help the registration process, growth and development, as well as digital recording of immunization. This study uses the Rapid Application Development system development method because it is fast, iterative, and greatly involves users in the development process. The results of this study indicate that the system that was built can increase cadre working time efficiency, reduce the risk of data loss, and facilitate access to information for parents.
Penerapan Sistem Informasi Pariwisata di Kabupaten Nias Selatan Menggunakan Metode User Centered Design (UCD) untuk Meningkatkan Aksesibilitas Dessry Cantika Lase; Andi Marwan Elhanafi
Jurnal ilmiah Sistem Informasi dan Ilmu Komputer Vol. 5 No. 3 (2025): November: Jurnal ilmiah Sistem Informasi dan Ilmu Komputer
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/juisik.v5i3.1523

Abstract

The tourism sector has become a vital component of the economy, contributing significantly to the income of both regions and countries. In South Nias Regency, there are various unique tourism assets, such as the traditional Lompat Batu (Stone Jumping) ritual, distinctive traditional house architecture, colorful traditional costumes, and a series of breathtaking beaches that attract a large number of visitors. The region's strategic geographical location further enhances the potential for developing its tourism sector. However, despite the rich cultural and natural assets, the tourism sector in South Nias Regency faces challenges such as limited access to comprehensive and up-to-date information about tourist destinations. The need for an improved information system has become more urgent, as the current tourism data is fragmented, not fully integrated, and lacks interactive features. This makes it difficult for potential travelers to access accurate and reliable information regarding the region's attractions, accommodations, and travel tips. Therefore, this study proposes the development of a web-based Tourism Information System that utilizes a User-Centered Design (UCD) approach. The UCD methodology ensures that the system is developed with the end user in mind, focusing on user needs, ease of use, and efficient interaction at every phase of the design process. The proposed system aims to be responsive and user-friendly, providing travelers with a convenient platform to access accurate and geographically relevant tourism data. Through the system, users can easily explore various tourist spots, rate destinations, and read user reviews, which will improve their overall travel experience. The system also features an interactive map that allows visitors to visually locate attractions, accommodations, and other points of interest.  
Co-Authors Ahmad Zakir Dessry Cantika Lase Imran Lubis Leriansyah Putra Nasyuli lubis, ihsan M. Taufik Batubara Mufida Khairani Nabila Ayu Ardiningsih Ratih Ningtyas Rika Humayrah Senti Harahap, Vira Yuanda Harahap Syifaa Salsabiila Putri