Article Per Year (5 Year)
p-Index From 2019 - 2024
0.92
P-Index
This Author published in this journals
All Journal Riau Journal of Computer Science JURNAL MEDIA INFORMATIKA BUDIDARMA KOMIK (Konferensi Nasional Teknologi Informasi dan Komputer)
Leman, Dedi
Unknown Affiliation
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
Analisa Pemilihan Air Mineral dan Rekomendasi Terbaik dengan Metode SMART (Simple Multy Atribute Rating Technique) Leman, Dedi
JURNAL MEDIA INFORMATIKA BUDIDARMA Vol 3, No 4 (2019): Oktober 2019
Publisher : STMIK Budi Darma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30865/mib.v3i4.1545

Abstract

Everyone needs drinking water which is increasing in line with the increasing population of Indonesia, but while the amount and level of drinking water decreases so people are looking for other options to get healthy drinking water and good levels. major developments in the sale of bottled drinking water, along with the arrival of many bottled drinking water products that are spread throughout the country bring increasingly intense competition among bottled beverage vendors. Various kinds of prices have a good and advanced impact on purchasing decisions. With the simple multy attribute rating technique, the method will find out the best mineral water according to the selected criteria. The purpose of this study is to examine the good levels of products, prices and the introduction of purchasing drinking water into a decision in purchasing bottled water. This research results that various kinds of product quality have a positive and significant influence on people's purchasing decisions in buying bottled water
LOAD BALANCING 2 JALUR INTERNET MENGGUNAKAN MIKROTIK ROUND ROBIN Leman, Dedi
Riau Journal Of Computer Science Vol. 5 No. 2 (2019): Riau Journal of Computer Science
Publisher : Riau Journal Of Computer Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (344.322 KB)

Abstract

Many of us have encountered Internet use, especially in internet cafes, offices, schools and campuses using more than one connection in subscribing to the Internet, whether it's different ISPs (Internet Service Providers) or the same ISP. In accessing the Web there are 2 types, namely with Authentication and without Authentication. At this writing the author uses 2 (two) Asymmetric Digital Subscriber Line or ADSL connections up to 3 Mbps from an Internet Service Provider (ISP). Cluster architecture that is implemented as a high-performance server is one of the effective and efficient solutions to overcome this problem. This cluster architecture can be built using the concept of network load balancing with high-availability that allows the processing of data to be distributed in a distributed manner to several computers. In Linux virtual servers there are scheduling algorithms that can affect LVS work systems, one of which is the round robin algorithm. By using a round robin algorithm, the workload will be shared equally across all servers. Round robin algorithm testing is done by using parameters comparing the number of users and response times, so that the response time is stable between 31 ms to 76.3 ms with the number of users between 10,000 and 50000 in load balancing implementation using the round robin algorithm
SMART SCHOOL MANAGEMENT INTEGRASI DENGAN FINGERPRINT Leman, Dedi
Riau Journal Of Computer Science Vol. 6 No. 1 (2020): Riau Journal of Computer Science
Publisher : Riau Journal Of Computer Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (203.629 KB)

Abstract

The teaching-learning process that is currently running at the vocational school in Medan is still largely conventional in nature, the teacher conveys subject matter, assignments, quizzes, collection assignments in class and each subject are only done a few meetings a week with limited time. Submission of information / announcements, management and services Academic administration and reporting are still done manually so that it is slow and not effective. The purpose of this study is to create a smart school design with a system web-based online learning to overcome various problems faced by Vocational school in Medan (case study at Vocational Tritech Informatics Medan). Smart school will to be blended learning that combines conventional methods or faces with an online learning system towards smart school. The results of this study are the creation online learning system models so that interaction between teachers and students can be done whenever and wherever to improve the quality of education and administrative management academic as well as accelerating the delivery of information to students and parents about students the development and achievements of each student. And use a fingerprint that is directly integrated with the system to be designed. This can support learning in school and creating a culture / learning environment that is effective and efficient and paperless. Design Smart School software uses the waterfall method which includes five stages, namely: (1) identification of user needs; (2) analysis; (3) design; (4) implementation; and (5) testing. Smart school system design uses object-oriented modeling language, UML (Unified Modeling Language).
METODE MERKLE HELLMAN UNTUK ENKRIPSI DAN DEKRIPSI PESAN WHATAPP Leman, Dedi; Rahman, Maulia
Riau Journal Of Computer Science Vol. 6 No. 1 (2020): Riau Journal of Computer Science
Publisher : Riau Journal Of Computer Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (234.029 KB)

Abstract

Encryption is a method of changing message data (plaintext) into password data (ciphertext), while decryption is a method of converting ciphertext to plaintext. WhatsApp Messenger is a messaging application for smartphones that is basically similar to BlackBerry Messenger. The WhatsApp Messenger application uses a 3G, 4G or WiFi internet connection for data communication. By using WhatsApp, we can do online chat, share files, exchange photos and so on. The algorithm used is 2 (two) types, namely symmetric algorithms and asymmetries algorithms. Merkle-Hellman Knapsack is a cryptosystem that uses the asymmetries algorithm. The Merkle-Hellman Knapsack implementation used uses xor logic. The key length is used between 8 to 72 bits. This capability makes Merkle-Hellman Knapsack have strong security with a short key length. Whereas the aim to be achieved is to apply the Merkman-Hellman Knapsack cryptosystem using the Visual Studio 2010 Programming Language
Sistem Pendukung Keputusan Pemilihan Paket Internet Operator Telekomunikasi Terbaik Dengan Metode Topsis Leman, Dedi; Rahman, Maulia
KOMIK (Konferensi Nasional Teknologi Informasi dan Komputer) Vol 4, No 1 (2020): The Liberty of Thinking and Innovation
Publisher : STMIK Budi Darma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30865/komik.v4i1.2561

Abstract

Abstrak− Laporan Penelitian dengan judul "Sistem Pendukung Keputusan Pemilihan Paket Internet Operator Telekomunikasi Terbaik Dengan Metode Topsis" mempunyai tujuan yaitu memberikan kemudahan bagi konsumen yang akan membeli paket internet dari berbagai operator telekomunikasi sesuai keinginan dan kebutuhan. Banyaknya operator yang menawarkan paket internet hal ini akan mempersulit para konsumen dalam menentukan pilihan yang tepat, sesuai dengan kriteria yang diinginkannya. Sistem pendukung keputusan dengan metode topsis merupakan metode yang tepat untuk mengatasi masalah pemilihan paket internet dengan banyak kriteria yang ditawarkan oleh masing-masing operator. Kriteria tersebut meliputi biaya, kecepatan, paket, kebutuhan, dan kuota.Kata kunci : Sistem Pendukung Keputusan, Terbaik, Pemilihan Paket Internet,  Metode,  Topsis
Co-Authors Maulia Rahman