Journal of Applied Informatics and Computing <p>Journal of Applied Informatics and Computing&nbsp;(JAIC) is a journal published by Department of Informatic Engineering, Politeknik Negeri Batam. The JAIC is issued 2&nbsp;times a year in electronic form. The electronic pdf version is accessible on the internet free of charge. We encourage all interested contributors to submit their work for consideration. <em>e</em>-ISSN:&nbsp;2548-6861</p> en-US <p>Authors who publish with this journal agree to the following terms:</p> <ul> <li>Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a&nbsp;<a href="">Creative Commons Attribution License</a>&nbsp;that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.<br> </li> <li>Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.<br> </li> <li>Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (<a href="">See The Effect of Open Access</a>).</li> </ul> (Dwi Ely Kurniawan, M.Kom) (Nelmiawati, B.CS., M.Comp.Sc.) Fri, 05 Jul 2019 00:00:00 +0000 OJS 60 Desain Mesin Compiler untuk Penganalisa Leksikal, Sintaksis, Semantik, Kode Antara dan Error Handling Pada Bahasa Pemrograman Sederhana <p>In compilation techniques, the processes and stages carried out relate to translating source languages into target languages (object programs). Source languages are high-level programming languages that are easy to understand and easy to learn by humans, while target languages are low-level languages that are only understood by machines. In this study a compiler machine called Automatic LESSIMIC Analyzer is used which can be used to analyze, including lexical, syntactic, and semantic analysis. Compiler machines that are designed can also synthesize intermediate code, using assembler codes. The compiler engine will produce an analysis of the program code that the user enters in the form of an error message, if the program code is not in accordance with the grammar that applies generally in programming languages. In this research, the simple program code that is inputted is C ++ programming language, and successfully analyzes the lexical, semantic, syntactic, intermediate code generation and successfully detects errors from the program code entered with a success rate of 99%.</p> Fauziah Fauziah, Andez Apriansyah, Tri Ichsan Saputra, Yunan Fauzi Wijaya ##submission.copyrightStatement## Mon, 01 Apr 2019 03:46:38 +0000 Aplikasi Penghitung Kendaraan Pada Jalur Pantura Menggunakan Blob Deteksi Dan Kalman Filter <p>Jalur puntara jawa merupakan jalan raya wilayah utara jawa membentang dari merak sampai ke banyuwangi. Jalur pantura ini merupakan jalur padat yang dilalui oleh kendaraan baik roda 4 maupun lebih. Beban jalan pantura per tahun mencapai 1 juta ton. Selain itu juga dengan beban ini merupakan penyumbang penggunaan BBM (bahan bakar minyak) yang lebih sebesar 42 ribu kiloliter dan mengakibatkan pemberi emisi udara cukup banyak sebesar 350 ton per hari.&nbsp; Dengan demikian semakin banyak kendaraan yang melintas jalur pantura, sehingga perlu diketahui tentang jumlah kendaraan yang melintas dijalur pantura secara otomatis oleh sistem. Data ini dapat dijadikan rujukan beban jalan pantura secara tepat. Pada penelitian ini, menggunakan beberapa algoritma dari blob detection dengan menggunakan library openCV dan kalman filter. Hasil dari deteksi dengan menggunakan bolb deteksi masih terdapat beberapa error yang cukup besar dan menggunakan kalman filter didapatkan 78.81 %.</p> A Sumarudin, Darsih Darsih, Iryanto Iryanto, Adi Suheryadi ##submission.copyrightStatement## Wed, 10 Apr 2019 13:23:28 +0000 Analisis Strategi E-Marketing Dalam Upaya Peningkatan Penjualan Travel Agent Online <p style="text-align: justify;">Every year the graph of foreign and domestic tourist arrivals to Bali continues to increase. This is a great opportunity to increase tourist destination visits to Bali. The role of technology will answer the problems that exist in this era of globalization by using computerized systems, so that the use of information technology helps effectiveness and efficiency in working on information system processes. After analyzing the Business Model Canvas (BMC) and E-marketing Business data using social media, the results obtained were an increase in sales of online travel agents in increasing sales turnover. This study uses the Break Event Point (BEP) analysis method to calculate the valuation of online travel agent company, so that optimization of the increase in Travel Agent Online sales can be done well.</p> Fitria Pebri Evariyanti, Ni Made Estiyanti, Sephy Lavianto ##submission.copyrightStatement## Fri, 03 May 2019 04:04:53 +0000 Penerapan Sistem Absensi Sekolah Menggunakan Fingerprint Terintegrasi Dengan Smartphone Android <p style="text-align: justify;">The need of student attendance information in schools is a major factor in success of the academic process. Often there are validation and identification errors in the student attendance process (human error or manipulation process) as well as the slowness of information obtained, since the attendance is recorded manually in each class. This has an impact on success of the academic process directly and the community at large. Because the importance of attendance information, various studies have offered the system in the process of student attendance, with various technologies. One popular technology and believed to be validating and identifying well is the fingerprint. Therefore, this paper proposes the introduction of attendance system in schools by utilizing fingerprint technology integrated with android smartphone so that information can be delivered quickly. This study use Fingerprint X-100C as a means of identification of student data at the time of absence then the attendance data will be sent to the system database by SOAP (Simple Object Access Protocol) Web Service. The system will validate and transmit that information on the android Smartphone via the newly created XML Service. The success rate of this system in processing absence reach&nbsp;around 90,47%&nbsp;with delay time of sending information&nbsp;0.0024 s&nbsp;This system has been tested and applied to SMK N 1 Indramayu.</p> A Sumarudin, Willy Permana, Adi Suheryadi, Kikis Maulana, Noufal Ibrahim ##submission.copyrightStatement## Tue, 07 May 2019 04:22:27 +0000 Visualisasi Kualitas Penyebaran Informasi Gempa Bumi di Indonesia Menggunakan Twitter <p style="text-align: justify;">Indonesia is one country with a high level of natural disasters, such as earthquakes, so the dissemination of information about early warning is very important.. Social media Twitter became one of the places of broadcasting information about earthquake disaster early instruction in Indonesia through BMKG account. However, the quality of information from Twitter's social media is unknown, therefore visualization is made to analyze the quality of information with Twitter social media. This research is done in three stages: retrieving, preprocessing and visualization. Retrieval process to capture BMKG Tweet account data on Twitter. Preprocessing phase of work to get the results of the analysis of the quality of earthquake information. After that done data processing timeliness, relevance, completeness of data along with the accuracy of data created based on graphical visualization information.</p> Mira Chandra Kirana, Nanda Putra Perkasa, Muhammad Zainuddin Lubis, Maidel Fani ##submission.copyrightStatement## Fri, 10 May 2019 03:25:29 +0000 Simulasi Proses Pengolahan Data pada Komputer Berbasis Multimedia dalam Bentuk 3 Dimensi <p>Computer is electronic device that are able to receive, process inputs, and produce output in the form of information.Studying data processing can be obtained from various sources ranging from studying with the experts or reading books.The learning process so far is difficult to understand if it is just an explanation or conventional teaching aids, so that students have their own constraints in understanding the lesson.Therefore media information is built in the form of simulating data processing on multimedia-based computers in 3D.The information provided in the simulation video is in accordance with the reference that has been validated by the lecturer in the field of operating system competence. In testing the Paired Sample t-Test there was an increase in the value of the quiz when using the application rather than using the book in understanding the material of the text data processing by 20.77% and the processing of sound data by 23.16%.And the survey of satisfaction with the application was carried out on 30 students and obtained an overall average yield of 91.70%.So based on the research carried out as a whole the application can be as an interactive alternative media in learning the processing of data on a computer based on the actual process that occurs on a computer in the form of 3-dimensional animation.</p> Ade Sukma Aulia, Shumaya Resty Ramadhani, Anggy Trisnadoli ##submission.copyrightStatement## Tue, 21 May 2019 01:44:21 +0000