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All Journal MANAJEMEN IKM: Jurnal Manajemen Pengembangan Industri Kecil Menengah Jurnal Informatika Jurnal Algoritma Neo-Bis Jurnal Ilmiah KOMPUTASI RABIT: Jurnal Teknologi dan Sistem Informasi Univrab ILKOM Jurnal Ilmiah SISFO Jurnal RESISTOR (Rekayasa Sistem Komputer) Jurnal Ilmiah Media Sisfo Jurnal Nasional Pendidikan Teknik Informatika (JANAPATI) Jurnal Teknologi Sistem Informasi Kharisma Tech Jurnal Algoritma Journal of Technology Research in Information System and Engineering
Mohammad Fajar, Mohammad
STMIK Kharisma Makassar
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering

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Journal : Kharisma Tech

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DESAIN NODE SENSOR UNTUK MONITORING LAHAN PERSAWAHAN BERBASIS MIKROKONTROLLER ATMEGA328P Farid Wikarsa; Mohammad Fajar; Syaiful Rahman
KHARISMA Tech Vol 14 No 1 (2019): Jurnal KHARISMA Tech
Publisher : STMIK KHARISMA Makassar

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Abstract

The purpose of this research is to design a low cost sensor node using ATmega328p microcontroller for monitoring a paddy field condition. Data collection techniques are done by literature study and sensor node prototype evaluation. The designed sensor node in this research consist of ATmega328P as an electronic circuit controller, DHT11 sensor to sense temperature and humidity, soil moisture sensor to read soil moisture parameter, 9V battery as power source of the node, 16MHz clock crystal to increase the microcontroller accuracy, voltage regulator to maintain a constant voltage level, and capacitor for the timer of the circuit. We use the C/C++ Arduino programming language to develop the software side of the node. The evaluation results show that the proposed sensor node is capable of sensing air temperature and humidity, soil moisture as well as send and receive the sensing data to/from the gateway node. The communication distance of the nRF24L01 module that we use for the node without an external antenna is up to 20.65 meters with an average packet loss of 20%.
IMPLEMENTATION OF MOTT-SN PROTOCOL IN HOME SECURITY SYSTEM USING MICROCONTROLLER NODEMCU Kevin Suharto; Mohammad Fajar; Hasniati
KHARISMA Tech Vol 16 No 1 (2021): Jurnal KHARISMA Tech
Publisher : STMIK KHARISMA Makassar

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This study aims to apply the MQTT-SN communication protocol to a low-cost home security system based on the NodeMCU microcontroller. Data was collected through literature studies and experiments. The designed home security system consists of MQTT-SN client, MQTT-SN Gateway, and MQTT broker. Home security system application designed to run on Android Smartphone devices. Evaluation results of the system with a number of nodes from 2 to 10 nodes show that the MQTT-SN protocol QoS performance such as delay, packet loss, and throughput is good and acceptable. The average size of the delivery packet of MQTT-SN is smaller than that of the MQTT protocol. In addition, the designed home security system successfully sent notifications to the user's mobile device in response to the detection of movement around the sensor location points installed.
IMPLEMENTASI PENDEKATAN BERORIENTASI OBJEK TERPADU UNTUK PENGEMBANGAN SISTEM INFORMASI YANG TERINTEGRASI PADA PT. SAPTA KARYA Yovita A. Maria; Mohammad Fajar; Afifah
KHARISMA Tech Vol 15 No 2 (2020): KHARISMA Tech Journal
Publisher : STMIK KHARISMA Makassar

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Abstract

The aim of this study is to analyze and design a sales information system using a unified approach at PT. Sapta Karya. Literature studies, observations, and interviews are performed to define specifications of the system. In the analysis phase, activity diagrams is used to model business processes of the system, use case diagrams to define functional specifications, and sequence diagrams to specify interactions between sales, warehouse, and finance departments, and class diagrams are used to establish the static structure of the system which consists of a number of entities, such as Customers, Employees, Goods, and Transactions. In the design phase, the types of attributes and methods of the class diagram are defined, and activity diagrams for modeling the application logic. The unified approach in the development of an integrated system can be applied, where each division performs its own function and communicates through data exchange between them. The designed class diagrams can be used to map the database structure and Java program code. While the logic code can be mapped from the desgined activity diagram. Evaluation of execution of the Java program shows that the functional features such as Sales Transactions can be executed and used according to the specifications.
IMPLEMENTASI TEORI SUPPORT VECTO R MACHINE UNTUK MEMPREDIKSI HARGA PENJUALAN LAPTOP ASUS Hong William Fondy; Mohammad Fajar; Izmy Alwiah Musdar
KHARISMA Tech Vol 14 No 2 (2019): Jurnal KHARISMA Tech
Publisher : STMIK KHARISMA Makassar

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This study aims to utilize the support vector regression (SVR) method as a machine learning technique to predict the selling price of laptops and their level of accuracy. Data collection is done through literature, internet and evaluation with MAPE. In this study the authors made the Laptop Price Prediction application using Pycharm with the Python programming language. The test results show that the calculation of the analysis performed by the application produces the same optimization value as the calculation done manually by the MAPE formula, which is 98%. This research was conducted on several online laptop sales webs, such as Tokopedia and Bukalapak. Laptop sales data are collected from online sales webs, used as a basis for experiments. Evaluation The results show that from testing 8 test data the best percentage of accuracy was obtained using MAPE, which is 74%.
IMPLEMENTASI POLA DESAIN UNTUK PERANCANGAN SISTEM INFORMASI PERPUSTAKAAN Jason Pratama Sunarji; Mohammad Fajar; Junaedy
KHARISMA Tech Vol 14 No 2 (2019): Jurnal KHARISMA Tech
Publisher : STMIK KHARISMA Makassar

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Abstract

The aims of this study are to apply design patterns for developing library information system and analyze them from re-usability aspect. The applied design pattern consists of Factory Patterns and Façade Patterns. Factory Patterns are used to separate the process of making objects from other purchased objects. The Façade Patterns are used to reduce connectivity among classes and the complexity of the system being built. To evaluate the patterns, object-oriented metrics were used, both system that do not apply the design pattern and the proposed system (system that apply the design pattern). The results of the Object Oriented Metrics analysis using the Coupling Between Object parameter showed the decrease of the connectivity among classes so that the system is easy to reuse, in which the parameter Response for a Class (RFC) showed the reduction of the method in the class on a system that applied the design pattern which made it easier to be understood and tested. In addition, using the parameter Line of Code (LoC) showed the reduction of 228 lines code of program, from 4410 to 4182 so that the system made the program size smaller and the library information system become easier to be maintained, reused, and understood.
PERANCANGAN PROTOTYPE E-STNK SEBAGAI MODEL ALTERNATIF PEMBAYARAN PAJAK KENDARAAN BERBASIS RFID Dian Yustika; Mohammad Fajar; Hendra Surasa
KHARISMA Tech Vol 14 No 2 (2019): Jurnal KHARISMA Tech
Publisher : STMIK KHARISMA Makassar

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Abstract

The purpose of this study is to design an e-STNK prototype for payment of vehicle tax using RFID technology. Data collection was carried out through evaluation of prototypes developed by researchers and involving 20 respondents. After the evaluation is conducted, respondents are asked to answer the questions raised on the questionnaire and the results are used as a basis for drawing conclusions. In this study the authors made the e-STNK system to facilitate tax payments using RFID. The system consists of two major parts. The first part consists of the web server and MySQL database. The second part consists of the STNK card (e-STNK) in the form of RFID and the reader (RFID Reader). Server side is used by admin in processing e-STNK data. For its development, the authors use HTML, PHP programming language, and Javascript. While the RFID / STNK cards are used by users, which are developed using RFID devices, RFID readers, and Arduino microcontrollers. Development on the RFID system side uses the C / Arduino programming language. The results of the first evaluation, based on ISO 9126 testing, the prototype e-STNK runs as expected that the system is able to make tax payment transactions, store data transaction history of payment of taxes, a history of violations, and a history behind the name of the vehicle registration. While the second evaluation involving 20 respondents showed that all questions were given good responses except questions number 1.7 and 8 which were included in the good enough category.
PENERAPAN METODE IMPLICIT RATING UNTUK SISTEM REKOMENDASI RESEP MASAKAN BERBASIS MOBILE WEB Inri Christiana Winardy; Mohammad Fajar; m
KHARISMA Tech Vol 13 No 1 (2018): Jurnal KHARISMA Tech
Publisher : STMIK KHARISMA Makassar

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The purpose of this research is to apply and evaluate the recipe recommendation system using implicit rating method that can help the user to choose the recipe that correspond to that user. The implicit rating indicator used is a repeat visits. Data collection in this study was conducted through literature studies, questionnaires, and testing of web-based applications developed. To get recommendations, users are already registered and make multiple visits to multiple recipes. Implemented using Codeigniter Framework with PHP programming language. This study used 68 recipes and 8 respondents as users. From the results of the study, all of the respondents received a recommendation. A trial is conducted to find out how many recommendations are appropriate for the user. The result obtained is the average percentage corresponding to the user that is 69.7625%, while the average percentage incompatibility with the user is 30.2375%.
SIMULASI TATA SURYA SEBAGAI MEDIA AJAR PADA PELAJARAN GEOGRAFI MENGGUNAKAN PAPERVISION3D Erwina; Mohammad Fajar; Hamdan Arfandy
KHARISMA Tech Vol 13 No 2 (2018): Jurnal KHARISMATech
Publisher : STMIK KHARISMA Makassar

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Abstract

The aim of this research is to develop a solar system simulation software with its planet information as a learning and teaching media of geography subject, especially at senior high school. Data collection techniques are done through literature study, interview and software evaluation using Black Box method. The simulation software application is developed based on Kepler’s law of celestial mechanics and it is designed using Unified Modelling Language (UML) which involving use case diagram, class diagram, and activity diagram. While Document Type Definition (DTD) is used to define its database. The designed artifacts then implemented into computer programs using Adobe Flash, ActionScript 3.0 programming language, Papervision3D library, and eXtensible Markup Language (XML). The Papervision3D library is applied to form planets movement simulation, develop 3D solar system objects, apply texture or material into the objects, and insert 3DS object for ringed planets such as Saturnus and Uranus. The evaluation result shows that the designed simulation software is able to simulate solar systems consisting of the Sun and its planets, showing information from simulated objects, simulating Sun and Lunar eclipse. The software also provides practices feature for question and answer related to the solar systems and shows terms list in the solar system for Geography learning requirements.
Implementasi Progressive Web Apps Pada Website GetHelp Menggunakan Next.js Ronny Jubhari Phie Joarno; Mohammad Fajar; Arfan Yunus
KHARISMA Tech Vol 17 No 2 (2022): Jurnal KHARISMATech
Publisher : STMIK KHARISMA Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55645/kharismatech.v17i2.219

Abstract

Penelitian ini bertujuan untuk mengimplementasikan teknologi Progressive Web Apps (PWA) pada website GetHelp menggunakan framework Next.js sehingga website dapat diakses dengan mudah melalui PC maupun perangkat mobile. Teknik pengumpulan data dilakukan melalui studi literatur dan observasi performansi sistem melalui pengujian menggunakan PWA tools. Teknologi web yang digunakan dalam PWA terdiri dari web app manifest, app shell dan service worker. Implementasi yang dilakukan meliputi tahapan instalasi PWA Next.js, membuat web app manifest, membuat file registrasi service worker, mengimplementasikan service worker, menambahkan script untuk memanggil manifest.json dan mengevaluasi PWA. Hasil evaluasi menunjukkan layanan-layanan website GetHelp dapat diakses dengan baik melalui beragam tipe perangkat mobile pada platform Android. Pengujian kualitas hasil implementasi PWA berdasarkan baseline PWA checklist dengan tool Lighthouse memperlihatkan semua kriteria terpenuhi, sedangkan pada tool PWABuilder memberikan skor total 110/110. Hal ini dapat disimpulkan bahwa implementasi PWA pada website GetHelp telah memenuhi kriteria. Selain itu, hasil evaluasi performa sistem menggunakan tools Lighthouse didapat peningkatan sebesar 23% (sebelum implementasi 66%, setelah implementasi PWA, performa menjadi 89%). Sementara jika evaluasi menggunakan tool GTMetrix, performa website GetHelp naik 14% (sebelum implementasi sebesar 68% , setelah implementasi PWA menjadi 82%).
Penerapan Metode Evaluasi Heuristik Untuk Mengevaluasi Usability Website Medisol Felycia Wisanto; Mohammad Fajar; Baizul Zaman
KHARISMA Tech Vol 18 No 1 (2023): Jurnal KHARISMATech
Publisher : STMIK KHARISMA Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55645/kharismatech.v18i1.257

Abstract

The aim of this study is to evaluate the usability of the Medisol website using the Heuristic Evaluation method. Data was collected through questionnaires and literature study. The number of samples in the questionnaire used was 25 respondents who were Medisol website users who had an understanding of the services provided, knowledge of information technology and problem domains or knowledge of drug problems. From the results of calculations using the heuristic method, it was found that the highest proportion was found in the principle of Recognition rather than recall with code H6 of 0.8 which is a cosmetic problem category which means that problems or deficiencies on the Medisol website do not need to be repaired except for time. website project work is still available. The lowest proportion is on the principle of Visibility Of System Status with the H1 code of 0.253, this is not a necessity for the founding team to make improvements because the weight is not the main focus in repairs. The evaluation results show the average value of usability problem ratings (severity rating) found when conducting heuristic evaluations is 0.437, which means usability problems are relatively low where it does not affect the convenience of accessing the Medisol website.
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Munir Abdul Munir Abdul Munir S. Afifah Agus Halid Agus Halid Agus Halid, Agus Anthony Arfan Yunus Arianti Caroline Layadi Ciuandi, Fudianto Dian Yustika Doni Yusri Erwina Farel Chrisber KawiIarang Farid Wikarsa Felycia Wisanto Ferian Bagus Chandra Gabryella Angelina Ho Hamdan Arfandy Hasniati Hasniati Hasniati Hasniati, Hasniati Hendra Surasa Hijaya, Daniel Alexander Hong William Fondy Huda, Andi M. Nurul Imin, Jonathan Hansen Inri Christiana Winardy izmy alwiah musdar Jakfar Sadik Jason Pratama Sunarji Junaedy Kambodji, Audri Billy Kelvin Aurin Kevin Suharto Lauw Reduardy I. Laulyta, Lauw Reduardy I. Layadi, Caroline Leonardo O. J Takumansang Lukman, Musfirah Putri m Muhammad Afif Panjiwinata, Sampurna Pratiwy aggraeny puspita sari Rahmatika, Richla Riany, Jane Richard Mpila Rizal Syarief Ronny Jubhari Phie Joarno Santriawan, Bondan Sun, Enrique Justine Suryanto, Christian Rayhan Syaiful Rahman Syaiful Rahman Syamsul Bahri Takumansang, Leonardo O. J Wikarsa , Rex Roald Yason, Clarissa Yovita A. Maria Zahir Zainuddin Zulfajri B. Hasanuddin