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All Journal Jurnal Pendidikan dan Pembelajaran Khatulistiwa (JPPK) Jurnal Filsafat InfoTekJar : Jurnal Nasional Informatika dan Teknologi Jaringan Sistemasi: Jurnal Sistem Informasi JPM (Jurnal Pemberdayaan Masyarakat) Jusikom : Jurnal Sistem Komputer Musirawas Jurnal Penelitian Kelapa Sawit Jurnal Nasional Komputasi dan Teknologi Informasi J-SAKTI (Jurnal Sains Komputer dan Informatika) IJISTECH (International Journal Of Information System & Technology) MUHARRIK: JURNAL DAKWAH DAN SOSIAL Waskita: Jurnal Pendidikan Nilai dan Pembangunan Karakter Jurnal Ilmiah Binary STMIK Bina Nusantara Jaya Pena Justisia: Media Komunikasi dan Kajian Hukum Jurnal Ilmu Komputer dan Bisnis El-Usrah: Jurnal Hukum Keluarga Jurnal Teknologi Dan Sistem Informasi Bisnis Jurnal Ilmiah Sains dan Teknologi JATI (Jurnal Mahasiswa Teknik Informatika) JTIK (Jurnal Teknik Informatika Kaputama) Jurnal Informatika dan Sistem Informasi Jurnal HIDROPILAR JOURNAL OF INFORMATION SYSTEM RESEARCH (JOSH) Journal of Applied Science, Engineering, Technology, and Education Jurasik (Jurnal Riset Sistem Informasi dan Teknik Informatika) IJISTECH Jurnal Responsif : Riset Sains dan Informatika Syntax: Journal of Software Engineering, Computer Science and Information Technology Djtechno: Jurnal Teknologi Informasi Rainstek : Jurnal Terapan Sains dan Teknologi Journal of Students‘ Research in Computer Science (JSRCS) J-SAKTI (Jurnal Sains Komputer dan Informatika) Jurnal Sistem Informasi Bisnis (JUNSIBI) Sultra Civil Engineering Journal (SCiEJ) Jurnal Komputer Teknologi Informasi Sistem Komputer (JUKTISI) Jurnal Ledalero Jurnal (FORSINTA) Informatika, Sistem Informasi dan Kehutanan Dinamika Hukum Dan Masyarakat Jurnal Manajemen Sistem Informasi Jurnal Rekayasa Sistem Informasi dan Teknologi Jurnal Pengabdian Kepada Masyarakat BIMASAKTI Jurnal Ilmu Komputer dan Sistem Informasi Hanif Journal of Information Systems Jurnal Ilmiah Sistem Informasi The Indonesian Journal of Computer Science Pena Emas Bhinneka Tunggal Ika: Pancasila Jurnal Internasional Berbahasa Indonesia (BTI)
Heri Santoso
Pusat Penelitian Kelapa Sawit (PPKS), Medan 20158
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Journal : IJISTECH

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Combined Performance of Hill Cipher and Rivest Code 6 (Rc6) Algorithms in Image Security Santoso, Heri; Rambe, Nia Sabrina; Suhardi, S
IJISTECH (International Journal of Information System and Technology) Vol 7, No 6 (2024): The April edition
Publisher : Sekolah Tinggi Ilmu Komputer (STIKOM) Tunas Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30645/ijistech.v7i6.337

Abstract

Digital image files are a form of information that is accurate and reliable enough to describe something, so the level of authenticity of this information needs to be maintained. Especially when sent via the internet as in chat-based applications such as Facebook, WhatsApp, Instagram and other social media. To maintain the security and confidentiality of digital image/image information, it is necessary to have a technique called cryptography. Cryptography is a technique or algorithm for changing data or information to be different from the original information. For example, in everyday life, there is a result of a design order that is still in the development stage that needs to be shown to prospective buyers, a drawing file or documentation image file that is private and confidential, so it is important to pay attention to its security. This research will use the combined performance of the Hill Cipher and Rivest Code 6 cryptographic algorithms in securing image files. The results of the Hill Cipher and Rivest Code 6 cryptographic algorithm encryption are able to disguise the image during the encryption process. And can restore to the original image in the decryption process. So that the encrypted image is safer to send via the internet or social media.
Design and Build an E-Commerce Application for Building Materials Using the Web-Based Cross Selling Method Saputri, Indah; Putri, Raissa Amanda; Santoso, Heri
IJISTECH (International Journal of Information System and Technology) Vol 8, No 5 (2025): The February edition
Publisher : Sekolah Tinggi Ilmu Komputer (STIKOM) Tunas Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30645/ijistech.v8i5.374

Abstract

The Building Materials E-commerce application is a digital platform designed to make it easier for consumers to find and buy building materials. This application is designed to help building stores in reaching more customers by offering a variety of building materials through a web-based platform. By using the cross selling method, the app automatically recommends relevant additional products to customers based on the items they choose, thereby increasing the chances of selling related products. The obstacle faced by Nazir Panglong is that there is no special digitalization touch for the products sold and customers have difficulty finding information related to what goods are sold due to the absence of a product catalog. Therefore, the application of building material ecoomerce was designed to overcome this problem. This application offers easy access for consumers and helps businesses in expanding their market reach, making a positive contribution to the development of the building materials industry in the digital era. This research aims to design and build a web-based e-commerce application that specializes in selling building materials, by integrating the cross-selling method as a sales increase strategy. The type of research method used by the author in this study is the Research and Development research method. By using data collection techniques, namely observation, interviews and literature studies. And the system development method used is RAD (Rapid Application Development) which consists of three phases, namely Requitment Planning, Design Workshop and Implementation. The results of the system trial show that the building materials e-commerce application can be implemented in Nazir Panglong to increase transaction value by offering additional products to customers so as to increase sales of goods and make it easier for customers to purchase products.
Combination of Forward Chaining and Certainty Factor Methods In An Expert System for Diagnosis of Cattle Diseases Ramadan, Chafiz; Santoso, Heri; Irawan, Muhammad Dedi
IJISTECH (International Journal of Information System and Technology) Vol 8, No 5 (2025): The February edition
Publisher : Sekolah Tinggi Ilmu Komputer (STIKOM) Tunas Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30645/ijistech.v8i5.375

Abstract

Cows are one of the most widely cultivated livestock animals in Indonesia, especially in the Asahan district alone, according to data from Asahan in Figures for 2022, in Asahan District in 2021 there will be 146,511 heads spread across 25 sub-districts. Cow disease is no longer a strange thing for livestock breeders. The symptoms that appear in cattle must be known as soon as possible before the disease appears with a ferocity that will cause the risk of death in cattle. death in Mr Poniman's cattle. Due to tympanic disease (bloating), at the time of this incident there were still few cows and people did not know how to treat it, so the cows eventually died with enlarged stomachs. With the availability of technology, the author built an expert system for diagnosing cattle diseases that can diagnose cattle diseases and provide treatment suggestions, both medical and natural, using the forward chaining method and certainty factor. Forward chaining first selects facts that are appropriate to the problem that is occurring, and the certainty factor will determine the result of the percentage of confidence of an expert. This system was built based on a website.
Design And Construction of Simpang Empat Village Public E-Service Using Mobile-Based Extreme Programming Method Zoelkifli, Mayang Zahra; Samsudin, S; Santoso, Heri
IJISTECH (International Journal of Information System and Technology) Vol 9, No 1 (2025): The June Edition
Publisher : Sekolah Tinggi Ilmu Komputer (STIKOM) Tunas Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30645/ijistech.v9i1.394

Abstract

The E-Community Services application is a website and Android-based application that can be used to overcome several problems in community affairs in the Simpang Empat Village government. Some of the matters that can be handled using this application are Single NA Management Letters, Divorce/Death NA Management Letters, Business License Letters and various other letters. This E-Community Services application also provides security and infrastructure features for the community. The type of research used by the author in this research is Qualitative Research and the System Development Method used is the Extreme Programing (XP) method. With data collection techniques consisting of Observation, Interviews and Literature Study. The E-Community Services application that was built has succeeded in helping to overcome various problems in the Simpang Empat Village government. The results of system testing also obtained very good results, so it can be concluded that the system is running well according to the results of the testing and validation that has been carried out.
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Aziz Abdul Halim Hasugian Afandi, Ade Aminah Agus Siswadi, Gede Agus Wahyudi Ahmad Zubaidi Ainia, Dela Khoirul Akbar, Zulfikri Akhmad Zaini, Akhmad Ali Ikhwan Alifiya, Aini Alnas, Amiruddin Andriani, Mega Anggini, Rani Dipa Anugraha, Daffa Ardi, Mohammad Noviani Ariansyah, Tri Sapri Binsasi, Norbertus Antoin Br Purba, Yunita dana yanti Chiar, Chiar Cuk Ananta Wijaya Daffa, Muhammad Dana Marsetya Utama Darsih, D Edy Sigit Sutarta Fakhriza, M Fakhriza, M. Fandi Hidayat, Fandi Farida Nur Kumala Fathur Rahman Rustan Ferdiani, Rosita Dwi Ferdiani Fitriyani, Mia Gathot Winarso, Gathot Harahap, Inun Suryani Harahap, Melinda Sari Harahap, Naryama Harianto, Wahyudi Hasanah, Dzulfiah Nadia Hastangka Hastangka, Hastangka Helmina, Helmina Hengki Riawan Putra, Muchamad Herry Mulyono Hetty Rohayani Ilka Zufria Indaswari, Rts Afrilia Indyah Hartami Santi Jantarto, Dwi Kurniawansyah, Kevin La Ode Dzakir Laode, Al Tafakur Lbs, Rahma Tania Mawaddah Lubis, Aulia Ramadhani Madiyuanto, Madiyuanto Manurung, Haidar Azra Masgode, Muhammad Buttomi Masnauli, Nur Mhd Furqan Mhd. Zulfansyuri Siambaton, Mhd. Zulfansyuri Muhamad Alda Muhammad Dedi Irawan Muhammad Fakhriza, Muhammad Muhammad Ikhsan Muhammad Siddik Hasibuan Nasution, Adnan Buyung Nasution, Romaito Ni'ma Kholila Nizar, Muchamad Coirun Nopriyani, Dwi Nur Hikmah Nurdin Nurdin Nurhidayah, Laila Nuzul Hijri Darlan Oktavia, Rapita Wiza Paul, Herdi Pradiko, Iput Pulungan, Sabrina Meylani Pungki, Diana Putri, Kusuma Putri, Sabrina Rahmawaty, Rahmawaty Rahutomo, Suroso Raissa Amanda Putri Ramadan, Chafiz Rambe, Nia Sabrina Randle, Oluwarotimi Rianto, Muhammad Aulia Abdi Ridho Pardomuan, Mohammad Ritonga, Jelita S. Mulyadi, Dikdik Salsabillah, Ayna Samsudin, S Saputri, Indah Sartika Wiguna, Anggri Septiana Dewi Andriana, Septiana Dewi Septiana Dwiputri Maharani Shobur, Ahmad Ferdian Sholihin, Sazili Sibarani, Fathiya Hasyifah Simbolon, Cahaya Siregar, Zaid Ubay Solifiah Batubara, Febi Sri Wilujeng Suendri Suendri Suendri, Suendri Suendri, S Suhardi, S Suhardi, Suhardi Surono Surono Syahputra, Mhd. Dana Anggara Tali Tulab, Tali Tantra, Manggala Wiriya Winarna Winarna Yahfizham Yahfizham Yanti, Fitri rahya Yasa, Arnelia Dwi Yulindra, Tania Yusuf Ramadhan Nasution, Yusuf Ramadhan Zaqi, Ahmad Zaqi Azkal Azkiak Zoelkifli, Mayang Zahra