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Alexander Setiawan
Program Studi Informatika
Computer Science & IT

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Rancang Bangun Aplikasi Bimbingan Skripsi Online Mahasiswa Berbasis Mobile (Studi Kasus Program Studi Informatika Universitas Kristen Petra) Semuel Lesbassa; Alexander Setiawan; Lily Puspa Dewi
Jurnal Infra Vol 9, No 2 (2021)
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Abstract

During the guidance process, students must bring a guidance form to record the results of their guidance with the supervisor. But students often do not bring the guidance form so that guidance activities are hampered. And in online learning right now because of the Corona Virus Disease 19 (Covid-19) pandemic. There are difficulties in contacting the lecturer to be used as a supervisor so that it can hinder students in doing their final assignment. Seeing the background of this problem, an online thesis guidance application was designed with a mobile application in which there is a guidance form that can be accessed by students and supervisors anytime and anywhere. And has features that can help students communicate with lecturers in conducting their guidance. The results obtained from this application include a thesis submission form, a guidance form for the guidance process and a chat feature for student and lecturer communication
Sistem Informasi Administrasi dan Inventory Control pada Multistore UD. XYZ Gunawan Putra Pratama; Andreas Handojo; Alexander Setiawan
Jurnal Infra Vol 8, No 2 (2020)
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UD. XYZ is a trading business in the city of Mataram engaged in the sale of shoes, socks, bags and others. At present UD. XYZ does not have a computerized system for recording. The results of branch sales reports using paper records that will be given by the branch every day to the admin to record requires a long time to make a report. With this problem we need a system that can help record all transactions.To be able to help record all transactions at UD. XYZ is by implementing an administration that can produce reports on sales, purchases, calculating COGS, profit and loss. In addition there is inventory control to help control stock. The system is made using the programming language HTML, PHP, Javascript and MySQL database.The final result of the development of this system is that all branch transactions can be integrated such as purchases, sales, stock. The system can also show a variety of reports such as reports on sales, purchases, profit and loss, debt and others. The system created can also monitor the stock of each branch.
Penerapan Metode Resource Loaded Scheduling Untuk Aplikasi Manajemen Proyek Pada Perusahaan Kontraktor “X” David Filigon Lie; Alexander Setiawan; Lily Puspa Dewi
Jurnal Infra Vol 9, No 1 (2021)
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Currently PT. Liberty Persada Sakti still uses CPM method when making schedule, because CPM does not factor in resources the result is not that accurate for estimating time period of a project. And all records of transactions done and calculation of RAB still done manually in papers and microsoft excel, that causes the company became susceptible for mistake made in calculating finance.Looking at the background of the problem, an appliaction is designed to help PT. Liberty Persada Sakti. The application will use Resouce Loaded Scheduling method for making schedule for a project, recording company finance and controlling project management. Application will uses PHP programming language and MySQL for making database.The results obtained from this thesis is that, the new system is helping the company to create and record RAB, and by comparing the calculated result from CPM and Resource Loaded Scheduling, both method have it’s own advantages and disadvantages.
Sistem Peminjaman Loker Otomatis Menggunakan QR Code dan Arduino William Winarto; Alexander Setiawan; Resmana Lim
Jurnal Infra Vol 8, No 1 (2020)
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Bank locker is a much needed facility, especially in public places. The lack of these bank lockers are very unsettling for those who carry a lot of luggage. From those many locker lending places in Indonesia, mostly still operated manually or using human labor. In the current era of globalization, automation is a major demand in all fields of work. Therefore, an automatic locker loan system is created from combining arduino WeMos D1 mini and android application. Android application is created using Android Studio, whereas the arduino is coded with Arduino IDE. The result of research showed that the integration of arduino and android application was successful in terms of automation and effectiveness.
Aplikasi Rekomendasi Pengemudi Perusahaan Jasa Travel Bismar Trans dengan Metode Simple Additive Weighting Benediktus Marcelino Pratama; Kartika Gunadi; Alexander Setiawan
Jurnal Infra Vol 8, No 2 (2020)
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Bismar Trans Travel Services Company is one of the engaged in transportation. During this time there are internal problems, one of which is the selection of the driver. So there needs to be a solution.This research was conducted to find the best driver. Travel Services Company Bismar Trans as a job provider uses the driver's recommendation application with the Simple Additive Weighting method with the PHP Programming Language, and the MySQL database.The results showed that the system calculation results were in accordance with the company's weight and criteria, the application could provide appropriate recommendations according to the company's needs and from the results of the questionnaire, the program had a good appearance, produced the right results, and had benefits.
Pembuatan Aplikasi Pengiriman Berkas Reyner Wijoyo; Alexander Setiawan; Agustinus Noertjahyana
Jurnal Infra Vol 8, No 1 (2020)
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The file sending process still done manually so the sender and recipient don’t know the location of the file and can’t track the file. furthermore, the total cost of sending file outside is still recorded manually so BAUK does not know the costs each unit spent.Because of that problem, file sending application based on website and android was created using PHP, MySql, and Java. Starts by creating a database to save all data and then create a website so that users can view and input data, then proceed with creating an android application using SOA and Rest so website database can be used on android and have the same data.This application can help the process of sending files by recording them automatically, tracking the files location, and see the total cost each unit.
Simulasi Pembayaran Menggunakan RFID (Radio Frequency Identification) Pada Studi Kasus Layanan Mahasiswa Alvin Santoso; Henry Novianus Palit; Alexander Setiawan
Jurnal Infra Vol 7, No 2 (2019)
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Money is a tool for transactions. The growing of technology make payment methods is also more varied, for example with e-money. However, even there are methods like this, administrative Petra Christian University activities still use manual system so that make less practical. When e-money going to applied, there is a security aspect that must be considered. One of them is how to secure the balance that is on the card so that the balance cannot be duplicated.To make e-money payment on administrative Petra Christian University there will be make payment system with RFID (Radio Frequency Identification) with money in the card. There are 3 methods, AES, DES, 3DES with CBC and CFB mode in comparison of the speed encryption decryption, memory usage, and anti-duplication on the card. Besides there will be comparison of speed when doing top up/withdrawl balance/transaction when money stored in card and money stored in database.The test results found that there anti-duplication method successfully applied, encryption decrytion speed AES, DES, 3DES mode CBC more faster than CFB and memory usage same with all of method. Money in database have a faster process in top up/withdrawl balance while DES with CBC mode more faster in transaction.
Penerapan Segmentasi Pelanggan dengan Menggunakan Metode K-Means Clustering Pada Sistem Customer Relationship Management di PT. Titess Michael Boentarman; Silvia Rostianingsih; Alexander Setiawan
Jurnal Infra Vol 9, No 2 (2021)
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Abstract

PT. Titess is a consumer good company with a variety of products such as consumption salt, packaged cooking oil, soap, sugar and so on. Currently PT. Titess has distributors whose role is to market products directly to consumers. With the aim of increasing sales at each distributor, PT. Titess provides special treatment. Special treatment is given manually for certain distributors. This is felt to be less than optimal, because the special treatment given is not right on target for each distributor who has the most sold superior product types. Therefore, we need a distributor segmentation system using the K-means method referring to sales history data. The proposed system also has features that can help distributors to place orders independently, confirm payments, submit returns, submit complaints and exchange reward points for prizes that can be arranged by the company. The results of the system have been tested for system acceptance using a questionnaire that was distributed to 5 users. The results of the system acceptance test show the distributor's satisfaction level with the system. Distributors feel the convenience and benefits of the system.
Real-Time BPMN Website Menggunakan Teknologi MERN Stack Ricky Handoyo; Leo Willyanto Santoso; Alexander Setiawan
Jurnal Infra Vol 7, No 2 (2019)
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At present, technology is a tool developed to help facilitate human activities. The making of complex and many bpmn diagrams is impossible to do by one or two people and also there are people who do an examination of the diagram that has been made. The current system is done by utilizing file sharing where BPMN files that have been done are sent via email. Therefore we need a system where a project can be accessed by several users directly.The making of real-time bpmn website is designed by utilizing the MERN stack technology as a single page application and javascript library which is used in making websites, especially library bpmn js for making diagrams and sockets IO for real-time two-way communication between users and system.The final result of this paper is a real-time website bpmn is used to help users make bpmn diagrams that can be done by several users. The presence of features such as sharing systems, real-time diagrams, and real-time chat are made for users to be able to share projects and make diagrams together.
Aplikasi Rekomendasi Supplier Supermaket Greensmart dengan Metode Analytical Network Process Aldo Vallian Sayoga Tanu Wijaya; Alexander Setiawan; Agustinus Noertjahyana
Jurnal Infra Vol 8, No 1 (2020)
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In Running of bussiness, supplier is one of the important components. Therefore, the right supplier selection will make the business process run smoothly. During this time the process carried out at the greensmart supermarket is still done manually. The manual process can lead to the selection of suppliers that are less appropriate for greensmart supermarkets. This can have a negative effect on greensmart supermarkets which can suffer from time and material losses.With these problems, a system is needed to help greensmart supermarket owners choose suppliers. This system will provide an alternative decision for greensmart supermarket owners in choosing suppliers for goods that are supplied by the package. For the method to be used is the analytical network process. This method was chosen because it can handle the problem of relations between sub criteria. This method works by calculating user input in the form of weight comparison and then processed to produce an eigen vector then entered into a matrix called unweighted supermatrix, then an unweighted supermatrix multiplication process will occur with a cluster matrix, a cluster matrix is a weight comparison of existing criteria then processed into an eigen vector and the final process is the process of calculating the limiting matrix which is the result of the appointment of the weighted supermatrix until the results of the same row then the results will be made into recommendations.For the results in this thesi it can be concluded that the program can produce effective results and is in accordance with the needs of the greensmart supermarkets. In addition, the ANP method can produce results that are quite effective but have a fairly difficult complexity.
Co-Authors Agustinus Noertjahyana Aldo Vallian Sayoga Tanu Wijaya Alex Christopher Alvin Santoso Amadea Sapphira Andreas Handojo Andri Gunawan Anita Nathania Purbowo Benediktus Marcelino Pratama Cynthia Stefanie Suriady Daniel Christian Tedja Daniswara Kusuma Aji David Filigon Lie Djoni Haryadi Setiabudi Endang Setyati Fandy Ong Febry Suryanto Gunawan Putra Pratama Handry Khoswanto Hans Sebastian Thenady Henry Novianus Palit Indar Sugiarto Jimmy Christian Tanian Jimrio Vicky Stanley Benu Juan Felix Nyoto Santoso Justinus Andjarwirawan Kartika Gunadi Kelvin Yohanes Kevin Christian Kevin Koesoemo Kevin Wibisono Lokananto Lauw Hermawan Pratama Lauwoto Leo Willyanto Santoso Lily Puspa Dewi Lucky Alexandre Lembangan Made Yoga Mahardika Michael Boentarman Michael Gozali Nova Sepadyati Priscilla Delaya Resmana Lim Resmana Lim Reyner Wijoyo Riandro Setiyo Louryanto Richard Prayogo Gozal Ricky Handoyo Rudy Adipranata Satria Antoni Gunawan Semuel Lesbassa Silvia Rostianingsih Vincentius Tandy Prasetyo William Winarto Yanes Robert Yeska Kakihary Yosua Umbu Datu Kadiwanu Yuan Pratama Yulia Yulia