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Sales Digital Cashier Application Development Using Website (Case Study : Gogo Bakery) Andrew Louis; Ferdy Riza; Allwine Allwine
Journal of Computer Science, Information Technology and Telecommunication Engineering Vol 3, No 1 (2022)
Publisher : Universitas Muhammadiyah Sumatera Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/jcositte.v3i1.9411

Abstract

Cash register technology can simplify and optimize payment transaction management. The activity of buying and selling goods cannot be separated from sales transactions and the sales transaction process cannot be separated from the cashier. GOGO Bakery is a trading shop engaged in the sale of bread. At this store, the transaction process, data processing, and report generation have not been managed computerized, until now this store still has not provided satisfactory and ineffective service, because the payment process at the cashier is not optimal and also the provision of product and price information is not listed properly, which causes consumers to not know the prices and the latest products in the store before buying. In stores, there are usually a lot of item data, transaction data, and others that are impossible to memorize. for that,
Analisa Frekuensi Hasil Enkripsi Pada Algoritma Kriptografi Blowfish Terhadap Keamanan Informasi Ferdy Riza; Nurmala Sridewi; Amir Mahmud Husein; Muhammad Khoiruddin Harahap
JURNAL TEKNOLOGI DAN ILMU KOMPUTER PRIMA (JUTIKOMP) Vol. 1 No. 1 (2018): Jutikomp Volume 1 Nomor 1 April 2018
Publisher : Fakultas Teknologi dan Ilmu Komputer Universitas Prima Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34012/jutikomp.v1i1.233

Abstract

The ease of sending data with the development of internet technology technology is now a concern, especially the problem of data confidentiality, integrity and information security. Cryptography is one of the techniques used to maintain data confidentiality and information security, the application of cryptographic techniques for information security and data integrity is highly dependent on the formation of keys. In this study proposed a frequency analysis approach to measure the level of information security of blowfish encryption results to determine the distribution form of each character used in the text and find out the exact frequency of each character used in the test text data. The encryption algorithm and description of blowfish method against plaintext are proven to be accurate, but the longer the key character used will greatly affect the level of information security that came from encryption process, this is based on the results of the frequency analysis conducted.
Analisis Performa Rasio Kompresi Pada Metode Differensiasi ASCII Dan Lempel Ziv Welch (LZW) Tommy Tommy; Rosyidah Siregar; Amir Mahmud Husein; Mawaddah Harahap; Ferdy Riza
JURNAL TEKNOLOGI DAN ILMU KOMPUTER PRIMA (JUTIKOMP) Vol. 1 No. 2 (2018): Jutikomp Volume 1 Nomor 2 Oktober 2018
Publisher : Fakultas Teknologi dan Ilmu Komputer Universitas Prima Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34012/jutikomp.v1i2.225

Abstract

ASCII differentiation is a compression method that utilizes the difference value or the difference between the bytes contained in the input character. Technically, the ASCII differentiation method can be done using a coding dictionary or using windowing block instead of the coding dictionary. Previous research that has been carried out shows that the ASCII differentiation compression ratio is good enough but still needs to be analyzed on performance from the perspective of the compression ratio of the method compared to other methods that have been widely used today. In this study an analysis of the comparison of the ASCII Difference method with other compression methods such as LZW will be carried out. The selection of LZW itself is done by reason of the number of data compression applications that use the method so that it can be the right benchmark. Comparison of the compression ratio performed shows the results of ASCII differentiation have advantages compared to LZW, especially in small input characters. Whereas in large input characters, LZW can optimize the probability of pairs of characters that appear compared to ASCII differentiation which is glued to the difference values ​​in each block of input characters so that in large size characters LZW has a greater compression ratio compared to ASCII differentiation.
Design of Student Values Information System At Stmik Methodist College Binjai Aprida Br Tarigan; Reza Alamsyah; Ferdy Riza
Indonesian Journal of Education, Social Sciences and Research (IJESSR) Vol 2, No 3 (2021)
Publisher : Indonesian Journal of Education, Social Sciences and Research (IJESSR)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/ijessr.v2i3.8553

Abstract

Information technology in this modern era has developed so fast and sophisticated. Every education sector is expected to be able to utilize information technology as a support for operational activities in producing information. STMIK Methodist Binjai is one of the institutions that uses computerization in its data processing, such as processing academic grades and making final grades in the form of Study Result Cards (KHS). The problems that occur today are related to the procedures carried out in the process of processing academic grades. Such as when filling out the KRS which still uses handwriting, and the printing of the KHS which is not updated because it is not well organized between lecturers and the study program.