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All Journal Jurnal Computech & Bisnis (e-Journal) Informatics Management, Engineering and Information System Journal Electronic, Business, Management and Technology Journal

Rohmat Nur Ibrahim

STMIK Mardira Indonesia, Bandung

Author-ID : 2825967

Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Industrial & Manufacturing Engineering Library & Information Science Other

Published : 7 Documents Claim Missing Document

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SISTEM PENERJEMAH KATA BAHASA INGGRIS KE BAHASA INDONESIA MEDIA HANDPHONE BERBASIS MOBILE APLICATION Rohmat Nur Ibrahim
Jurnal Computech & Bisnis (e-Journal) Vol 2, No 1 (2008): Jurnal Computech & Bisnis
Publisher : STMIK Mardira Indonesia, Bandung

Mobile phones (cell phones) are now used not only for conversation but also to play games and so on. The presence Java2 Micro Edition (J2ME) is expected to answer those needs while making more multifunctional mobile phones. Currently the latest generation of mobile phones has the ability to apply the J2ME program, which is a Java program that is specifically designed for mobile devices. Java enabled mobile applications meet the needs of its users through a variety of exciting programs. Because it can be done offline phones not only can be used as a communication tool but it can also be used as tool translator English words into Indonesian. Keywords: Phones, J2ME, Java Program, Translator Abstrak Telepon seluler (ponsel) sekarang digunakan tidak hanya untuk percakapan tapi juga untuk bermain games dan sebagainya. Hadirnya Java2 Micro Edition (J2ME) diharapkan dapat menjawab kebutuhan tersebut sekaligus membuat ponsel lebih multifungsi. Saat ini ponsel generasi terbaru memiliki kemampuan mengaplikasikan program J2ME, yaitu program Java yang khusus dirancang untuk peranti bergerak. Aplikasi Java memungkinkan ponsel memenuhi kebutuhan penggunanya melalui berbagai program menarik.Karena dapat dilakukan secara offline ponsel tidak hanya dapat digunakan sebagai alat komunikasi tapi dapat juga digunakan sebagai alat penerjemah kata bahasa Inggris ke bahasa Indonesia. Kata Kunci: Ponsel, J2ME, Program Java, Penerjemah

PENGEMBANGAN APLIKASI BELAJAR MENULIS ALFABET DAN ANGKA UNTUK PERANGKAT MOBILE BERBASIS ANDROID DAN IOS MENGGUNAKAN FRAMEWORK COCOS2 Kovalevsdeno Al Fajr Amiton; KM. Syarif Haryana; Rohmat Nur Ibrahim
Jurnal Computech & Bisnis (e-Journal) Vol 7, No 1 (2013): Jurnal Computech & Bisnis
Publisher : STMIK Mardira Indonesia, Bandung

This study is about application development of learn how to write alphabet A-Z both uppercase and lowercase letter, number and object word that length is not longer than 5 letters. The application packed into a game where there are images, animations and audio for background music and sound effect. The purpose is to make player not bored while learning how to write. The images theme is colorful, while the audio theme is cheerful. The application was developed for Android and iOS-based device using Cocos2d-x framework that built in C++ language programming. A lot of variations in both Android and iOS device ultimately from screen resolution could become a problem in application development. The solution that was taken is to use a single image that have biggest resolution, so when it’s used into a device which have smaller screen resolution, scaling is used for the image asset. In the development, the player can see hint animation as a guide how to write a letter or number. The writing standard refer to handwritingforkids.com website. The game will be over when the player has finished the writing that fit with the sequence that shown by the hint. The game score will be displayed when the game is over, and the highest score will be saved in the application as a record. The score of the game valued by the player writings. In a level, there are obstacles and checkpoints that placed in certain positions. The checkpoint placed inside of the letter or number line. While the obstacle placed on the outside of the letter or number line. The more the obstacle touched, then the more the player score will decrease.Keywords: cocos2d-x framework; learning application; game education

KRIPTOGRAFI ALGORITMA DES, AES/RIJNDAEL, BLOWFISH UNTUK KEAMANAN CITRA DIGITAL DENGAN MENGGUNAKAN METODE DISCRETE WAVELET TRANSFORMATION (DWT) Rohmat Nur Ibrahim
Jurnal Computech & Bisnis (e-Journal) Vol 6, No 2 (2012): Jurnal Computech & Bisnis
Publisher : STMIK Mardira Indonesia, Bandung

In the community of information technology users often occur several crimes either consciously or unconsciously, intentionally or unintentionally done. Way to secure data in the form of digital images can use cryptographic technique; cryptography is one of the techniques used to enhance the security aspect of information. Cryptography is the study of science and art to keep a message or data information so that the data is safe. Cryptographic support the needs of the two aspects of information security, namely secrecy (protection of the confidentiality of data information) and authenticity (protection against counterfeiting and alteration of information that is undesirable).Along with the development of computer technology, the world of information technology requires a stronger cryptographic algorithm and secure. Currently, AES / Rijndael (Advanced Encryption Standard) is used as the newest standard cryptographic algorithms. AES / Rijndael replace the DES (Data Encryption Standard), which in 2002 was over its service life. DES is also considered to be no longer able to answer the challenges of the development of communication technology very quickly. AES / Rijndael itself is a cryptographic algorithm using the algorithm AES / Rijndael to encrypt and decrypt the data block along with a 128-bit key length of 128 bits, 192 bits, or 256 bits. Blowfish is an algorithm that uses a block size of 64 bits of data along with the key length of 448 bits. To produce a digital image pixel values randomly needed a method transpormasi Discrete Wavelet (DWT) to generate a random pixel values before the encryption process. So from this comparison produces research in the form of computation time (Computation Time), average shape error (Mean Squared Error), Total changes in pixel values, Level Number of Pixel Change (NPCR), peak signal to noise ratio (PSNR (dB)). Keywords: Digital imagery, Rijndeal, blowfish, Computation Time, Mean Squared Error, Number of Changing Pixel Rate, Peak signal to Noise Ratio

PERANGKAT LUNAK KEAMANAN DATA MENGGUNAKAN ALGORITMA KRIPTOGRAFI SIMETRI TINY ENCRIPTION ALGORITHM (TEA) Rohmat Nur Ibrahim
Jurnal Computech & Bisnis (e-Journal) Vol 13, No 1 (2019): Jurnal Computech & Bisnis
Publisher : STMIK Mardira Indonesia, Bandung

Data security is one of the most important aspects in information technology. With a high level of security, it is expected that the information presented can be maintained its authenticity. The method for forming systems uses object-oriented methods. By using the Tiny Encryption Algorithm (TEA) Algorithm which is a symmetric key cryptographic algorithm, this problem can be overcome. The strength of this algorithm lies in feistel networks (including substitution operations, permutations and arithmetic modular), the implementation of which is analyzed using the encryption and encryption message encryption process in text format (as in * .txt format). Data security software is expected to be achieved so that other researchers who will research further can develop it again.Keywords: Data Security, Algorithms, Symmetry, TEADOI : http://doi.org/10.5281/zenodo.3625286

Sistem Informasi Pemeriksaan Tes Covid-19 Untuk Fasilitas Pelayanan Kesehatan (Fasyankes) Andy M. Sudartono; Rohmat Nur Ibrahim; Ali Mulyawan
Jurnal Computech & Bisnis (e-journal) Vol. 16 No. 1 (2022): Jurnal Computech & Bisnis (e-Journal)
Publisher : LPPM STMIK Mardira Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56447/jcb.v16i1.50

To strengthen the government's program in the form of 3T (Testing, Tracing, Treatment) in controlling the Covid-19 pandemic in Indonesia, required an integrated screening test web-based information system (software) for patients, referrals, laboratories designed to follow the needs and flows in the field to issue test results quickly and accurately. The research method used is qualitative-descriptive, with a System Development Life Cycle (SDLC) method. This software is designed using the Laravel Framework 8.0 and using MySQL database for data storage, also using UML (Unifield Modeling Language) as a tool for system design. System testing techniques using the black box method. The problems of speed of time, automation, and data accuracy that arise in the health facility referral will be resolved by providing a fast, accurate and integrated solution for test results.

Co-Authors Ali Mulyawan Andy M. Sudartono Julianus Waruwu KM. Syarif Haryana Kovalevsdeno Al Fajr Amiton Rio Febrian

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