Books by Justinus Andjarwirawan
XCAST is an improving concept of today's biggest network, the Internet. Videoconferencing, remote... more XCAST is an improving concept of today's biggest network, the Internet. Videoconferencing, remote desktop connectivity, collaboration tools like chat and Whiteboard; these are the applications people use more and definitely more in the future. We realize that the available Internet bandwidth may not be able to catch up the exponential growth of Internet users, especially for these types of applications. XCAST shows how streams of information, in this case Whiteboard communication, are efficiently packed into smallest possible size of packets. XCAST is very efficient for small groups of Whiteboard collaboration.
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Papers by Justinus Andjarwirawan
THE 2ND INTERNATIONAL CONFERENCE OF SCIENCE AND INFORMATION TECHNOLOGY IN SMART ADMINISTRATION (ICSINTESA 2021)
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Tutor assistant is a term for students who serve new students in small groups, in a coaching prog... more Tutor assistant is a term for students who serve new students in small groups, in a coaching program for new students known as Ethics Enrichment. Currently, every support tools that have been used by tutor assistants were printed. In comparison with the number of tutor assistants, the printing of support tools is a waste and not really practical, especially when compared to the advancement of technologies which actually can ease the service of tutor assistants. Web application was made with the purpose of helping tutor assistant service by providing a system that can be accessed across devices and can fulfill the needs of tutor assistants while doing their services. Some features in web application include material access, grade assignment, online attendance form and interactions with new students via sharing or meeting agreement form. Web application also use JSON Web Token to provide login service and email notifications if any content addition occur in web application. After doin...
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Pengguna BlackBerry di Indonesia menurut data terakhir yang dirilis oleh Reuters mencapai 7 juta ... more Pengguna BlackBerry di Indonesia menurut data terakhir yang dirilis oleh Reuters mencapai 7 juta pengguna yang menandakan bahwa BlackBerry di Indonesia sangatlah populer dan dipakai oleh banyak orang. Alasan yang menyebabkan BlackBerry sangat populer di Indonesia karena kebutuhan masyarakat Indonesia yang membutuhkan chatting dan kebutuhan ini dipenuhi oleh ada layanan BlackBerry Messenger yang disediakan oleh BlackBerry. Seiring dengan majunya IT di Indonesia, maka juga semakin banyak orang yang memakai PowerPoint dalam menjelaskan presentasinya, pada awalnya dibutuhkan seorang operator untuk menjalankan slide presentasi dan yang seorang lagi menjelaskan, kemudian munculah sebuah remote control untuk menjalankan slide tersebut sehingga hanya membutuhkan 1 orang untuk melakukan presentasi. Tetapi membeli sebuah remote control hanya untuk menjalankan slide kuranglah efisien dan membuang biaya, oleh karena itu dibuatlah sebuah aplikasi untuk BlackBerry dimana aplikasi tersebut bertind...
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Real estate has growth significantly in Indonesia recently, there are many new estates , apartmen... more Real estate has growth significantly in Indonesia recently, there are many new estates , apartment , shop for sale. There are several media used to advertise properties for sale, for example let’ say brochures , banners , newspapers , the internet . Among a lot of advertisement media , internet is the most effective because it does not need to pay extra fee for promotion , can load the images for the real estate , the number of people who access the Internet are very large , the search can be detailed based on user demand . Many real estate agents have promote their real estate on the internet. Therefore, this thesis tries to make an application that can help sellers to enter data from the real estate to be sold , and help potential buyers to search for properties in accordance with his wishes . Searches can be more effective in the presence of the coordinates on Google Maps as a property and a map service provider. The test results showed that the difference in screen resolution on...
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The monitoring system is an important component that we need a system datacenter. Problem can be ... more The monitoring system is an important component that we need a system datacenter. Problem can be occurred if a datacenter system does not have a monitoring system. It could lead to be a problem for a network administrator to manage and monitor servers in a network. This thesis intends to make a system monitoring with monitoring tools namely Zabbix. Zabbix is a monitoring tools that have user friendly interface, and also can display some information needed to improve work of network administrator. Some features such as Telegram API and SMS API added in Zabbix. By doing so, Zabbix can send notification message to network administrator if trouble happens in network. The result shows by adding Telegram API and SMS API in Zabbix, network administrator can reveal network condition in real time.
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The popularity of Android based device could lead into an abundant amount of device choices from ... more The popularity of Android based device could lead into an abundant amount of device choices from many vendors. There’s a lot factors that one needed to consider before they can decide one device on the market that fully coping their needs. Some of whice are device’s performance, size, and price. The benchmark application will put the device into trial which consists of CPU computation, JavaScript performance, Graphics, and Storage capability. Application aside, there will be a web service intended to provide service for masses in an easier and a simpler way. Based on the test results, the application can run well and can perform all of its functions. Score output are relevant and can give the user general view about the performance from the device on the market. On several later iteration of android version, usage permission for external storage are very limited. Hence, DriveSpeed2 can’t be run because the application couldn’t write on external storage freely.
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Aditya Store is a store that sell motorcycle sparepart and provide motorcycle service at affordab... more Aditya Store is a store that sell motorcycle sparepart and provide motorcycle service at affordable price. This store located at strategic location and have many customers. However, while writing record of sales record, purchase record, inventory record and etc, this store still using old way where that way still has many weakness. Some problems come up, like, lost items or calculation of profit and loss store sometimes give wrong result (human error). From that background, the owner of the store wants to change over using administrasion system in IT which is neatly structured, so the system can support Aditya Store’s performance while making sales, purchases, sales return, bookkeeping, account receivable and etc. This administration sistem is created using programming languange PHP (Hypertext Preprocessor), HTML (Hyper Text Markup Language), MYSQL as database and Laravel 5 as Framework. Result obtained from this application such as there are master recording, sales and purchases re...
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Placing a weather sensor in a remote area requires a network media to deliver the data to an acce... more Placing a weather sensor in a remote area requires a network media to deliver the data to an accessible database somewhere in the Internet. This situation requires Delay Tolerant Network to deliver data at a later period of time and continues to collect weather data for later deliveries to the connected network. An application is designed to be able to access the output data of an AAG wire weather sensor and keep the data in a database as long as the weather sensor is collecting data, so that those data are collectible at later time by a mobile computer with wireless connectivity. Then to deliver the data to a connected server in the Internet. This application is developed using Interplanetary Overlay Network, deployed in a mobile laptop from and to the remote sensor and an Internet connected server. It displays the output from weather sensor. The outputs displayed in a website with temperature, wind speed, and wind direction. From the implementation and experiment result, the appli...
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Visual Novel is an interactive fiction game comprised of static images, sounds, and video combine... more Visual Novel is an interactive fiction game comprised of static images, sounds, and video combined. However, almost all of visual novel available are only accessible after completing the installation process on the platform defined by the development of that visual novel. Besides, authoring tools specialized for visual novel making are mainly based on desktop. Through this development, the authors would like to provide a widely accessible application which is available over the web and delivering ease of use of visual novel authoring tool. Availability of playable visual novel is also included to be one advantage of playing visual novel hassle-free. The results obtained from this application, among others, can upload and manage files necessary to be used in the visual novel project as its resource, create a visual novel through the provided editor, publish created visual novel, and play all published visual novel.
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Indonesia has a lot of cities, each of which has many tourism atrraction. One of the two cities a... more Indonesia has a lot of cities, each of which has many tourism atrraction. One of the two cities are famous for tourism place, the city of Malang and Batu. Both of these cities the distance very close to one another. Both the city is also famous for the cool air, and culinary. Many of the tourists who vacation in the city, but tourists and residents around the city are still many who do not know the tourism place that are in both cities. It therefore requires a source of information that is easy to understand and easy to obtain. With the use of smartphones are widely used today, then designed an application to provide information about the tourism place in the city of Malang and Batu. This application provides a variety of information, especially the tourism place, culinary, and hotels in the city of Malang and Batu. Information about the culinary, hotel, and tourism are categorized by the administrator, accompanied by photographs and a detailed description with the goal of keeping t...
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Quiet time is an activity of Christians to pray, worship God and reading the Bible personally are... more Quiet time is an activity of Christians to pray, worship God and reading the Bible personally are generally done in the morning before any activity begins. But many Christians overlook a quiet time because often they do not know what to do for a quiet time as a song to be sung, and devotional material must be read. In this study conducted by making quiet time Android-based applications with Phonegap technology. This app has a feature to help users to have a quiet time and users can discuss with other users on matters relating to the Christian life and the truth of the Bible Based on the results of the implementation and testing that has been done, the application can display the material in the form of devotional quiet time every day, provide a video link song material for quiet time, and provide features to users in order to have discussions with the use of technology Google Cloud Messaging.
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During this match is done by way of introduction process intended to get married. In general, int... more During this match is done by way of introduction process intended to get married. In general, introductions are conducted by exchanging biodata between men and women accompanied by intermediaries such as parents, close relatives, friends or dating agency. This is of course difficult for men and women who want to find a mate because if men and women want to meet, they must meet face to face. In addition without the use of communication tools men and women will not be able to express their feelings. This application is created using the programming language PHP, Java and MySQL database. App view using Android Studio 2.2 program. Chat feature using chat messenger telegram template. The end result of this application development is able to show recommendation of candidate pair according to result of calculation, fill criteria value according to desire, answer criteria question, add friendship, chat between users, give notification to user, and change answer and criteria value. Users can...
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In today's world where globalization is very heavy and unstoppable, many young people today p... more In today's world where globalization is very heavy and unstoppable, many young people today plunge into the business world. With so many words uptake and terms in the business world, then developed an application that can help ease in learning the term business world. In this thesis is done making the application to utilize Levenshtein Distance Algorithm and Wildcard as supporting media of information, so user easier in looking for a word. This app will run on android devices.
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PT Kirana is a well-known travel agency in the city of Malang. The company provides several kinds... more PT Kirana is a well-known travel agency in the city of Malang. The company provides several kinds of tour packages at affordable prices. Kirana Travel has several routes, among others: Surabaya, Mojokerto, Malang and Juanda. At this time, the existing business system is still manual, recording orders placed are still manual. The ordering is done over the phone, then the admin noted that customer address will be picked up. After noting all existing orders, admin notify the driver addresses will be picked up. Drivers do not know the best route to be taken. At the time of the operation of the fleet, the driver only has the addresses of customers who will be picked up one by one. Currently operates a fleet of office parties and customers usually do not know where the position of the current fleet. This application is created using eclipse program and phpMyAdmin as database storage system. The application is divided into three applications: application for customer, application for admin...
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Docker is an application that is based on open source technology that allows developers or anyone... more Docker is an application that is based on open source technology that allows developers or anyone to create, run, do experiments and launch application in a container. Docker make the process of packaging application components together quickly in an isolated container, so it can run in local infrastructure without changing configuration on the container. Docker also very light and fast when compared to hypervisor-based virtual machine. Department of Information Engineering of Petra Christian University has a considerable number of students, which the number usually hundreds, while the number of computers in the laboratory of Department of Information number is not as much as the students. With this amount is not comparable, then some students work in the same computer alternately. It makes the students cannot be comfortable working on one computer, because configuring a computer on every lesson is different. Therefore, implementation of Docker application carried out in the laborat...
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Pada saat ini, perkembangan teknologi informasi dan komunikasi sangat berkembang pesat di segala ... more Pada saat ini, perkembangan teknologi informasi dan komunikasi sangat berkembang pesat di segala bidang. Tanpa disadari produk dari perkembangan teknologi tersebut sudah banyak digunakan dalam menjalankan kehidupan sehari-hari. Salah satu contoh dari perkembangan teknologi adalah penggunaan internet yang merupakan aplikasi berbasis web. Teknologi ini dalam penggunaannya dapat diakses dengan media pendukung berupa web browser. Perkembangan teknologi ini juga berdampak sangat besar bagi adanya online shopping yang merupakan sistem belanja yang bisa dilakukan hanya dengan melihat gambar dan keterangan lewat internet. Online Shopping sekarang sudah menjadi salah satu trendsetter bagi masyarakat luas. Karena melalui online shopping segalanya bisa dilakukan dengan cepat dan meminimalisasi waktu serta tenaga yang dibutuhkan. Perancangan desain sistem menggunakan Data Flow Diagram dan Entity Relationship Diagram. Database dibuat dengan menggunakan phpmyadmin. Program yang dibuat meliputi pe...
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Social commerce marketplace website is a website that acts as a third party to bridge transaction... more Social commerce marketplace website is a website that acts as a third party to bridge transactions between buyers and sellers as well as optimizes the use of social media. With the payment gateway provided by the marketplace website, buying and selling transactions online can be done safely so a buyer does not need to hesitate if s/he wants to buy a product from a seller. Similarly, the seller also should not hesitate to sell his/her products to anyone. Utilizing the API provided by Facebook and Instagram, the marketplace website can be integrated with those social media. A Facebook user can sign up with his/her account and share products from the marketplace website to his/her social media accounts. In addition, e-commerce sellers who use Facebook or Instagram for online business can upload their products directly from those social media. Automatically, the products that had been uploaded can be viewed on the marketplace website. Thus, the e-commerce sellers can reach a wider custo...
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Penggunaan device berbasis Android dari tahun ke tahun mengalami peningkatan yang sangat pesat. S... more Penggunaan device berbasis Android dari tahun ke tahun mengalami peningkatan yang sangat pesat. Salah satu contohnya adalah aplikasi pada bidang kuliner. Makanan merupakan hal yang bisa dikatakan sangat penting dalam kehidupan sehari-hari, namun faktanya banyak orang di Indonesia tidak bisa memasak. Para pengguna device Androidbisa mendapatkan aplikasi yang memudahkan untuk memasak makanan cita rasa Indonesia dengan mudah. Bagaimanakah sebuah aplikasi resep makanan berbasis Android dapat mempermudah individu untuk melakukan pemilihan makanan Indonesia berdasarkan kategori tipe makanan, bahan makanan utama, serta lama waktu memasak.Aplikasi yang dikembangkan berbasis Android menggunakan bantuan yahoo query language untuk mengkonversi data mentah menjadi data yang bisa diolah. Perintah dijalankan dengan perintah PHP dan client melakukan request kepada webserver sehingga menerima JSON. Aplikasi ini merupakan sebuah aplikasi yang dapat memberi kemudahan kepada Android user untuk mendapa...
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Software New SPEKTRA digunakan oleh banyak perpustakaan. Peralihan dari New SPEKTRA menjadi iSPEK... more Software New SPEKTRA digunakan oleh banyak perpustakaan. Peralihan dari New SPEKTRA menjadi iSPEKTRA yang berbasis online memberikan peluang dibuatnya unified database yang menyimpan data dari semua client iSPEKTRA dengan nama Spektra Virtual Library (SVL) . Teknologi Web Services berbasis REST digunakan untuk sinkronisasi data agar seragam dan memudahkan publik dalam mencari koleksi karya tulis baik fisik maupun digital. Twitter bootstrap digunakan untuk website interface dan PostgreSQL digunakan sebagai database . Spektra Virtual Library akan menjembatani perbedaan struktur data antar pengguna software iSPEKTRA dan membantu publik mencari koleksi karya tulis berbagai perpustakaan dalam website tunggal. Penelitian ini dilakukan untuk membuat web services sebagai sarana sinkronisasi database dan penyetaraan data, serta website berbasis twitter bootstrap untuk Spektra Virtual Library . Hasil dari penelitian ini berupa website Spektra Virtual Library dan program web services .
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