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All Journal Jurnal Informatika Jurnal Infra Seminar Nasional Informatika (SEMNASIF) Teknika
Justinus Andjarwirawan
Program Studi Teknik Informatika
Computer Science & IT Electrical & Electronics Engineering Engineering

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Aplikasi Indoor Positioning System Menggunakan Android dan Wireless Local Area Network Dengan Metode Fuzzy Logic Indoor Positioning System Permana, Dennis Yuputra; Handojo, Andreas; Andjarwirawan, Justinus
Jurnal Infra Vol 1, No 2 (2013)
Publisher : Jurnal Infra

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Abstract

Banyaknya ruangan dan luas gedung pada perkantoran atau mal seringkali menyulitkan pengunjung untuk mengetahui lokasi pengunjung saat ini, menemukan lokasi suatu tempat dan rute untuk menuju lokasi tersebut. Oleh karena itu,  pada penelitian ini dibuat sebuah aplikasi android yang dapat memetakan posisi pengguna dengan menggunakan wireless LAN dan pencarian rute menuju suatu lokasi. Metode yang digunakan untuk penentuan lokasi adalah Fuzzy Logic Indoor Positioning System yang dikombinasikan dengan Location Fingerprinting, sedangkan untuk pencarian rute digunakan Iterative Deepening A*. Metode ini terdiri atas 2 tahap, yaitu tahap offline dan online. Pada tahap offline, dilakukan survey terhadap lokasi yang bersangkutan untuk mengumpulkan data survey, yang berupa data Received Signal Strength (RSS) dari setiap access point yang terpasang. Sedangkan pada tahap online, pengguna mengirimkan data RSS ke server untuk ditentukan posisinya.Hasil pengujian menunjukkan bahwa proses penentuan letak sangat bergantung pada data fingerprint  yang dikumpulkan pada tahap offline. Sedangkan RSS yang merupakan data survey utama, sangat sensitif terhadap kondisi lingkungan. Peningkatan akurasi hasil penentuan letak dapat dicapai dengan menambah jumlah Access Point (AP) dan jumlah Reference Point (RP) yang optimal. Aplikasi ini nantinya dapat dikembangkan sehingga dapat digunakan ketika di dalam gedung maupun di luar gedung.
APLIKASI MAKASSAR TOURISM PADA KOTA MAKASSAR BERBASIS ANDROID Setiawan, Iwan; Andjarwirawan, Justinus; Handojo, Andreas
Jurnal Infra Vol 1, No 2 (2013)
Publisher : Jurnal Infra

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Abstract

Pariwisata merupakan suatu hal yang sangat berkembang sekarang ini di Indonesia. Hal ini dapat dilihat dari banyaknya event nasional/internasional yang diselenggarakan oleh pemerintah setempat termasuk di kota Makassar. Kota Makassar sejak dahulu sudah terkenal di Kawasan Timur Indonesia mulai dari kebudayaan, perdagangan, keagamaan, kuliner dan sebagainya.Pada penelitian ini, akan dibuat sebuah aplikasi yang dapat mengenalkan kota Makassar secara mendasar. Pengenalan tersebut terdiri dari objek wisata, kuliner, hotel, serta oleh-oleh pada kota Makassar yang terdiri dari detail, peta, komentar, promo dan gallery. Selain itu, terdapat juga event, gallery foto kota Makassar, news terbaru dan cerita sejarah kota Makassar. Aplikasi ini menggunakan Google Maps API untuk menampilkan peta dan rute dari suatu tempat dan Global Positioning System (GPS) untuk mengetahui posisi dari user sekarang. Seiring dengan kemajuan teknologi, aplikasi ini dibuat pada mobile device berbasis Android sehingga mudah untuk diakses dimana saja dan kapan saja selama mempunyai koneksi internet.Berdasarkan hasil pengujian, aplikasi ini sudah berjalan dengan baik pada mobile device Android dan memberikan informasi tentang kota Makassar sesuai yang diharapkan.
Pembuatan Aplikasi Penyimpanan Informasi Rahasia pada Mobile Device Android dengan Metode Kriptografi Serpent Cipher Tumalewa, Harry Timothy; Andjarwirawan, Justinus; Handojo, Andreas
Jurnal Infra Vol 1, No 2 (2013)
Publisher : Jurnal Infra

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Abstract

Keamanan informasi merupakan salah satuaspek penting dalam pemanfaatan teknologi informasi. Namunpenyimpanan informasi pada tempat yang kurang tepat,misalnya pada sebuah catatan (baik yang merupakan catatanfisik ataupun software) seringkali dinilai tidak aman. Karenaselama informasi yang disimpan masih dapat terbaca (humanreadable), maka tidak tertutup kemungkinan informasitersebut suatu saat ditemukan ataupun dibongkar sehinggaterbaca.Aplikasi yang dibuat mampu menyimpan sekaligusmengamankan informasi rahasia dari penggunanya. Selaindiamankan oleh password, aplikasi juga diamankan olehpseudorandom number melalui fitur shake, sehinggakeamanannya terjamin.Berdasarkan hasil pengujian, aplikasi mampumengimplementasikan fitur untuk meng-edit dan menghapusinformasi yang tersimpan, mengirim informasi melalui SMSatau e-mail, melakukan enkripsi/dekripsi terhadap file padaexternal storage device, mengubah password yang tersimpan,melakukan backup ke Google Drive, dan melakukan restore.
Perancangan dan Pembuatan Aplikasi Resep Makanan Berbasis Android Agustinus, Paul; Noertjahyana, Agustinus; Andjarwirawan, Justinus
Jurnal Infra Vol 1, No 1 (2013)
Publisher : Jurnal Infra

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Abstract

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 mendapatkan resep masakan Indonesia dengan mudah. hasil kuesioner pengguna aplikasi dari 20 orang responden ini mulai dari yang tertinggi adalah 90% berkata bahwa antarmuka memiliki tampilan yang bagus, 75% berkata bahwa aplikasi ini mudah dipakai, 70% berkata bahwa aplikasi ini memliki kelengkapan fitur yang cukup, dan 70% berkata bahwa aplikasi ini berguna bagi kehidupan sehari-hari.
EXTENSI APLIKASI QUIZ ONLINE PADA MOODLE VERSI MOBILE Wijaya, Pieter Sindu; Lim, Resmana; Andjarwirawan, Justinus
Jurnal Infra Vol 2, No 2 (2014)
Publisher : Jurnal Infra

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Abstract

Learning Management System application is currently widely used by many people to conduct learning activities without having to be in a classroom . The use of Moodle as a Learning Management System be benefited a lot. Moodle is equipped with a mobile application that can be installed on Android devices. However, this application has many features that can be used, some of the existing features is to look at the class that followed and quizzes are held. By utilizing web services, an application designed to address the shortcomings of existing applications. This application provides classes and quiz creation feature on mobile devices. Users who are registered as holding quizzes and teachers can create questions over and Android device users can be registered for the quiz via Android devices. Based on the testing results, this application can working properly on Android versions 4.0 - 4.3 or Jelly Bean and web services that can be used in sync with applications on the web. catatan:Fulltext paper ini di publikasikan pada prosiding Seminar Nasional "Rekayasa Teknologi Industri dan Informasi" (RETII 2014), pada 13-14 Desember 2014 di Yogyakarta.
Perancangan Dan Pembuatan Pengamanan Video Chat Dengan Menggunakan Metode Enkripsi RC4 Putra, Stevie Suwanto; Budhi, Gregorius Satia; Andjarwirawan, Justinus
Jurnal Infra Vol 3, No 1 (2015)
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Abstract

Technological development at this time has been growing rapidly with the internet. Along with the development the more the usefulness of the Internet. Not only used for browsing, now the Internet is also used for communication. Such as email, chat, and etc. The increasing development of communication technology, then people start to think about the secure of the communication technology. As in a video chat, only the person entitled to know the information in the video chat. But the encryption process on existing processes such as blackbox said due to lack of transparency.Of these problems lead to the idea to make a video chat application that uses cryptographic security techniques. Data of video chat will be encrypted using RC4 method. Research shows when the data that has been encrypted can be displayed when password is correct. It shows when data that has been encrypted safer than the data that is not encrypted.
Pembuatan Website Online Marketplace untuk PT. X Cahyadi, Rendy; -, Yulia; Andjarwirawan, Justinus
Jurnal Infra Vol 3, No 1 (2015)
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Abstract

PT. X is a company which provides IT consultation, mobile software development, and website development. PT. X observing physical business transaction which have many problems, especially in terms of times and space. Improvement in technology can be allocated to ease business process which happens physically, to online. Although seems ease the transaction, there is still many problems occur in marketplace website such as reliability which makes the user refuse to transact online.The creation of marketplace website can be a solution to ease trading and information sharing. Websites marketplace that has been made also able to become the third party in transaction between buyers and sellers, in hopes of minimizing fraud. The making of marketplace will use the No-CMS framework because this framework have a content management system.The results obtained from the making of the application is considered to be quite good and in accordance with the requirements of PT. X. It can be concluded from the results of questionnaires to the owner of PT. X which gives very good overall score. On the user side, the website is also considered to be sufficient customer needs with a total score of 80% good and 20% very good on the questionnaire.
Benchmarking Software dan Website Report untuk Memudahkan Kategorisasi Device Berbasis Android Berdasarkan Performa Tjandra, Michael Christian; Andjarwirawan, Justinus; Palit, Henry Novianus
Jurnal Infra Vol 3, No 1 (2015)
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Abstract

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.
Perancangan dan Pembuatan Website Social Commerce Marketplace dengan Memanfaatkan API Media Sosial Suwignyo, Ariani Kartika; Andjarwirawan, Justinus; Palit, Henry Novianus
Jurnal Infra Vol 3, No 2 (2015)
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Abstract

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 customer base.
Pembuatan Aplikasi Mobile Tourism Guide Kota Malang dan Kota Batu Berbasis Android Hartanto, Kelvin; Andjarwirawan, Justinus; Setiawan, Alexander
Jurnal Infra Vol 3, No 2 (2015)
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Abstract

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 the tourists and residents can understand clearly. This application also has many features such as nearby, get route, GPS, maps, tourism tour, review, and rating. The application is designed to operate on smartphones with Android operating system.From the test results, the application can perform the function of maps, get the route, nearby as well as other functions such as ratings, and reviews. So that a user who will be traveling to the city of Malang and Batu can use the features of this application.
Co-Authors A.A. Ketut Agung Cahyawan W Agnes Yustivani De Sirat, Agnes Yustivani Agus Setiawan Suhariono Agustinus Noertjahyana Aldi Renaldi Gunawan, Aldi Renaldi Alexander Setiawan Alvin Ferdinandus, Alvin Andreas Handojo Andy Gunawan Anita Nathania Purbowo Anton Wahyudi Ariani Kartika Suwignyo, Ariani Kartika Atmodjo, Kristoforus Gumilang Kurniawan Bernardo Taufiq Mangunwijaya, Bernardo Taufiq Bobby William Therry, Bobby William Daniel Satriautama, Daniel David Harjowinoto, David Della Nova Ongkodjojo Dennis Yuputra Permana Devi Christiani Angir, Devi Christiani Djohan, Timotius Revelano Saliby Djoni Haryadi Djoni Haryadi Setiabudi Eddy Setyawan Edward Budiman Sutanto Eko Bayu Kusumo Eric Prabowo Cundomanik, Eric Prabowo Ferry Tanggo Gestel, Bert van Go David Gunawan Gregorius Satia Budhi Gregorius Satiabudhi Hans Aditya Admaja, Hans Aditya Hans Christian Herjanto, Hans Christian Harris Boedijono, Harris Harry Timothy Tumalewa Heinrich Wiradinata Henry Novianus Palit Ibnu Gunawan Irawan Hady, Irawan Iwan Setiawan Janice Elvina Leuw Julio Christian Salim, Julio Christian Julius Wonodihardjo Kartika Gunadi Kelvin Hartanto, Kelvin Kevin Darmawan Limantoro Kristo Radion Purba Lewi S. Kristianto Liliana Liliana Lily Puspa Dewi Malvin Yuwono Kurniawan, Malvin Yuwono Michael Christian Tjandra Paul Agustinus Pieter Sindu Wijaya Purwoko, Agus Rendy Cahyadi Resmana Lim Richard Pangalila, Richard Robby Christianto Wijaya, Robby Christianto Robert Gosal, Robert Rufus Dian Oeinata Sandy Sunaryo Sanjaya, Cenius Silvia Rostianingsih Stevie Suwanto Putra Sugeng Hadi Wijaya, Sugeng Hadi Tanjung, Hana Tommy Jonathan, Tommy Viky George Lettu Radja Pono, Viky George Lettu Wahyu Christianto Wahyu Ricky Handoko William Febrianto Sulisthio willy wardhana gunawan Wong Fanny Christiana, Wong Fanny Yendry Ferdinand Tandoro Yohan Alvin Limanto, Yohan Alvin Yohanes Raymond Budiono, Yohanes Raymond Yulia - Yulia Yulia Yvonne Nathania, Yvonne