J-Tin's - Jurnal Teknik Informatika http://ejournal.stmik-sumedang.ac.id/index.php/jtin <p>J-Tin's - Jurnal Teknik Informatika is a scientific journal published by LPPM STMIK Sumedang and as a means of publication of research results and sharing the development of Informatics Engineering. It's contains articles that have not been published previously in the form of research articles or applied research. Information on article writing guidelines and article submission procedures is available on every issue. All incoming articles will go through a 'peer-reviewed process' after meeting the requirements as per the article writing guidelines. The publication of this journal is done once every six months ie in April and October</p> en-US agreindra@stmik-sumedang.ac.id (Muhammad Agreindra Helmiawan) yanyan@stmik-sumedang.ac.id (Yan Yan Sofiyan) Thu, 15 Apr 2021 00:00:00 +0700 OJS http://blogs.law.harvard.edu/tech/rss 60 Evaluation Of E-Learning Based On Nau (Nielsen'S Attributes Of Usability) According To Students http://ejournal.stmik-sumedang.ac.id/index.php/jtin/article/view/289 <p>STMIK Sumedang is one of the high schools that provides e-learning. As many access, there were several problems. After scrutinized, the problem is more inclined to usability, then in this research will be conducted evaluation of the usability of STMIK Sumedang e-Learning. Usability is an aspect of the quality of software that needs to be tested and is a perspective of non-functional needs that have the most important benchmarks and the most fundamental factors in the application, as this perspective can determine the success or failure of an application when used by its users. Nielsen's Attributes of Usability (NAU) is one of the methods of measuring the Usability aspects of an application and will be used in this research. The usability variables to be evaluated are learnability, efficiency, memorability, errors, and user Satisfaction's, with a significance level of 0.1 (10%), respondents amounting to 743 and sample size 111 (df = 109). Overall from a range of values is not very good – excellent, assessment aspects of usability towards STMIK Sumedang e-learning average assessed enough by the user (students) in fulfilling the usability aspects according to Nielsen's Model. It is hoped that suggestions for improvement/recommendation of this evaluation can be considered as guidance in the framework of application development process.</p> Dwi Yuniarto, Reny Rian Marliana Copyright (c) 2021 J-Tin's - Jurnal Teknik Informatika https://creativecommons.org/licenses/by-nc-sa/4.0/ http://ejournal.stmik-sumedang.ac.id/index.php/jtin/article/view/289 Thu, 15 Apr 2021 00:00:00 +0700 Decision Support System Modeling Using Simple Additive Weighting Method In Determining The Type Of Superior Seed http://ejournal.stmik-sumedang.ac.id/index.php/jtin/article/view/290 <p>A decision support system is a system to assist someone in making decisions in semi-structured situations. Decision support systems (DSS) are intended to be a tool for decision makers to expand their capabilities, but not to replace their judgment. DSS is intended for decisions that require judgment or decisions that cannot be supported by the algorithm at all. One of them is to determine the type of superior rice seeds by using the Simple Additive Weighting (SAW) method with the criteria of soil, geographical location and weather. The results of this study will produce a form of decision support system modeling in determining the type of superior rice seeds with the highest weight value from the results of the calculation method used.</p> Esa Firmansyah, Fidi Supriadi Copyright (c) 2021 J-Tin's - Jurnal Teknik Informatika https://creativecommons.org/licenses/by-nc-sa/4.0/ http://ejournal.stmik-sumedang.ac.id/index.php/jtin/article/view/290 Thu, 15 Apr 2021 00:00:00 +0700 Application Of Earth And Building Tax Based On Website http://ejournal.stmik-sumedang.ac.id/index.php/jtin/article/view/291 <p>The speed and accuracy of technology in completing a job is a demand for an organization, including government organizations. Moreover, the village government in Sumedang Regency in managing land and building taxes, the process still takes a long time and community participation in fulfilling their obligations is low. The purpose of this research is to help manage land and building taxes in Banjarsari village to make it even better. The method used in developing the model is the Prototype method, while the UX (User Experience) test uses UEQ (User Experience Questionnaire). The research conducted created an application that can help manage land and building taxes in the village of Sumedang district.</p> David Setiadi, Dian Budiana Copyright (c) 2021 J-Tin's - Jurnal Teknik Informatika https://creativecommons.org/licenses/by-nc-sa/4.0/ http://ejournal.stmik-sumedang.ac.id/index.php/jtin/article/view/291 Thu, 15 Apr 2021 00:00:00 +0700 Design Of Automatic Aquarium Water Ph Monitoring System Based On Microcontroller Nodemcu Esp8266 http://ejournal.stmik-sumedang.ac.id/index.php/jtin/article/view/292 <p>Internet of Things technology in the present era has pushed human life to automate things. Today's automated devices mostly use a microcontroller as a controller. No exception to people who like to keep fish in an aquarium that can use tools as a helper for ease of use. Maintaining ornamental fish is quite complicated, besides the feed that must be considered, the pH of water must also be considered because the pH of water plays a role in creating a comfortable and safe environmental condition for ornamental fish so that it can help the resistance of ornamental fish, the pH or potential of hydrogen is the degree acidity. The value ranges from 1-14, and the pH of neutral water is 7. Below that number is acid, while above that number is alkaline. Type of ornamental fish is classified as a safe water Ph value of 6-7. Internet of Things technology can be used as an auxiliary tool for easy automatic water checking of pH in the aquarium which is accompanied by the action of adding acid or alkaline liquid to neutralize the aquarium water if the Ph of water is not detected in a neutral state then there is a notification via the mobile telegram application. The Telegram-based automatic aquarium water Ph monitoring system design model using the NodeMCU Esp8266 microcontroller uses the application of the prototyping methodology with the stages of needs analysis, system design, prototyping, and system testing</p> Mulya Suryadi, Deris Santika Copyright (c) 2021 J-Tin's - Jurnal Teknik Informatika https://creativecommons.org/licenses/by-nc-sa/4.0/ http://ejournal.stmik-sumedang.ac.id/index.php/jtin/article/view/292 Thu, 15 Apr 2021 00:00:00 +0700 Parameter Optimization In Support Vector Regression Using Grid Search Optimization In Predicting Currency Values http://ejournal.stmik-sumedang.ac.id/index.php/jtin/article/view/293 <p>Currency Values is cryptocurrency which known has high price fluctuation. The more volatile the price of an investment, the higher the risk of investors gain losses. That principle also follows in Currency Values. In order for investments to avoid losses and gain profits, there needs a method that can be used to predict the price of Currency Values accurately. In this study, a Currency Values price prediction was carried out based on Currency Values data obtained in the past (time series forecasting) using the Support Vector Regression (SVR) method. The data used is weekly Currency Values price data from January 2018 to March 2020. Currency Values price data is nonlinear, so the Radial Basis Function kernel is used. The SVR parameter model is optimized using the Grid Search Optimization. The objective of this research is to get the accuracy of the SVR model by looking at the MAPE value which obtained. The results showed that the MAPE value obtained was 10.738% with the parameter values of C = 5, ? = 0.004, and ? = 0.07. The MAPE value indicates that the predicted results that obtained are categorized as good prediction results</p> Maya Suhayati, Muhammad Agreindra Helmiawan Copyright (c) 2021 J-Tin's - Jurnal Teknik Informatika https://creativecommons.org/licenses/by-nc-sa/4.0/ http://ejournal.stmik-sumedang.ac.id/index.php/jtin/article/view/293 Thu, 15 Apr 2021 00:00:00 +0700 Design Of Learning System Using E-Learning 4.0 Based On Website http://ejournal.stmik-sumedang.ac.id/index.php/jtin/article/view/294 <p>Various studies illustrate that e-learning has a positive impact on the best service efforts in the world of education. However, the implementation of e-learning requires the belief of all parties that e-learning has the power to improve a learning environment that is beneficial for students, in addition to mastery and maturity of concepts and accuracy in choosing strategies and evaluations. Especially in the field of education and distance learning, various concepts have been developed to replace traditional learning methods, one of which is the concept of e-learning. E-learning can be used as an alternative to problems in education as well as a substitute for existing learning activities. For this reason, the author has the idea of a learning system using e-learning. The method used is a prototype with the stages of needs analysis, designing, implementing the system, and testing the system. The results obtained from this test are students and lecturers can carry out learning outside of school, by using computerization, the desired report will be quickly provided for those who need it, with a computerized system, each presentation of information that has been programmed in such a way will be faster when compared to manual systems</p> Teguh Wiharko, Dani Indra Junaedi Copyright (c) 2021 J-Tin's - Jurnal Teknik Informatika https://creativecommons.org/licenses/by-nc-sa/4.0/ http://ejournal.stmik-sumedang.ac.id/index.php/jtin/article/view/294 Thu, 15 Apr 2021 00:00:00 +0700 Design And Development Of Visitor Detection Tool System Based On Microcontroller Internet Of Thing http://ejournal.stmik-sumedang.ac.id/index.php/jtin/article/view/295 <p>The development of globalization in this era, making all sectors of activity can not be separated from the use of information technology. Almost all activities use technology and information, either directly or indirectly. Information technology is a technology used to process data, including processing, obtaining, compiling, storing, and manipulating data in various ways to create or produce quality information. Internet of Things is all activities whose actors interact with each other and are carried out by utilizing the internet. This technology can be an effective solution because it allows surveillance to be carried out remotely via a computer or smartphone.</p> Dody Herdiana, Asep Saeppani Copyright (c) 2021 J-Tin's - Jurnal Teknik Informatika https://creativecommons.org/licenses/by-nc-sa/4.0/ http://ejournal.stmik-sumedang.ac.id/index.php/jtin/article/view/295 Thu, 15 Apr 2021 00:00:00 +0700 Design and Build Student Attendance System Using Fingerprint http://ejournal.stmik-sumedang.ac.id/index.php/jtin/article/view/296 <p>Student attendance at school is the presence and participation of students physically and mentally towards school activities during effective hours at school. Given the importance of the meaning of attendance, it is necessary to have a tool that can regulate the attendance process to be more accurate and efficient. Honesty and time discipline are mandatory in the school attendance process. Student attendance is carried out like most schools in general where students will be absent when they enter the class and the parents / guardians of these students will not know whether their children really come to school. The method used is Research and Development (R&amp;D) as a process or steps to develop a new product or improve the hardware implementation of the NodeMCU board, ESP8266 wifi, Fingerprint sensor, RTC, LCD, Buzzer, DC - DC Converted, and power supply. 12V with whatsapp application and microcontroller programming. The purpose of this research is to make it easier for schools to recapitulate student attendance and provide information on student attendance at school via WhatsApp to parents / guardians as a form of reporting on student learning progress so that the education system can run well. The results obtained by the Fingerprint sensor can work well when identifying the fingerprint that occurs when pressing the Fingerprint device then processed by the NodeMCU microcontroller. The microcontroller is able to operate properly in processing input data from sensors and forwarding it to the ESP8266 wifi module to send each sensor data to the WhatsApp application. The whatsapp application can function properly in receiving data from NodeMCU via the internet then displaying it in the twilio chat as a third party to channel presence information through the whatsapp application</p> Beben Sutara, Esa Firmansyah Copyright (c) 2021 J-Tin's - Jurnal Teknik Informatika https://creativecommons.org/licenses/by-nc-sa/4.0/ http://ejournal.stmik-sumedang.ac.id/index.php/jtin/article/view/296 Thu, 15 Apr 2021 00:00:00 +0700