Arlinta Christy Barus, Johannes Harungguan, Efren Manulu
{"title":"PENGUJIAN API WEBSITE UNTUK PERBAIKAN PERFORMANSI APLIKASI DITENUN","authors":"Arlinta Christy Barus, Johannes Harungguan, Efren Manulu","doi":"10.54074/jati.v1i2.33","DOIUrl":"https://doi.org/10.54074/jati.v1i2.33","url":null,"abstract":"The DiTenun application is an intelligent device for producing Indonesian weaving motifs which was built in 2016 entitled \"Intelligent Device for Producing Indonesian Weaving Motifs\". Seeing the existence of problems in the DiTenun application where performance becomes less good when the number of users increases, it is carried out to perform performance testing with Load Test levels in virtual user numbers. The server used in the DiTenun application is a server from the DEL Institute of Technology, so that the development of the DiTenun application comes from the IT DEL server. For now, the DiTenun application uses the application of the API as a means and process of development and development carried out by the developer. Therefore, in this study, API testing will be carried out on the DiTenun application by measuring the level of performance usingJMeter to do the Performance test and measuring the level of the number of virtual users interacting with the system simultaneously using the Load Test. The researcher will also measure the baseline of the DiTenun application web service from the API response time based on the data load being called. After the analysis, based on the performance testing performed on the API using the Load Testing method, it was found that the performance of most of the APIs decreased with the increase in the number of users accessing, although no errors were found in the tests carried out. As for the results of the baseline web service measurement, the researcher obtained the results of the response time which can be used as a reference for an API that will be run in a system on the server that has been used by the researcher. The result could be used by DiTenun to improve the performance of DiTenun.","PeriodicalId":136029,"journal":{"name":"Journal of Applied Technology and Informatics Indonesia","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130885472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Application of Double Pictures to Audio Watermarking using Discrete Cosine Transform (DCT) and Singular Value Decomposition (SVD) Methods","authors":"Togu Novriansyah Turnip, Tegar Arifin Prasetyo, Nevi Aktasia Banjarnahor, Winda Mariana Pasaribu, Sopian Manurung","doi":"10.54074/jati.v1i2.32","DOIUrl":"https://doi.org/10.54074/jati.v1i2.32","url":null,"abstract":"One way to control the development of arbitrary distribution of audio is to apply audio watermarking. Audio Watermarking is used to identify the ownership rights of audio files by embedding a watermark while paying attention to the audio quality and the watermark's resistance to amplify, resampling, and invert attacks. Discrete Cosine Transform (DCT) and Singular Value Decomposition (SVD) methods are frequency-domain methods that have a good robustness. The DCT and SVD methods are combined with inserting and extracting watermarks using two images as watermarks. From the test results, the effect of inserting an audio watermark with two images does not significantly impact the durability of the watermark and the quality of the audio inserted with the watermark. However, the alpha value has a significant effect. The higher the alpha value, the lower the audio SNR value by an average of 1.93 dB from an alpha value of 0.0008 and 0.001 for each type of classical, jazz, and rock audio genre.","PeriodicalId":136029,"journal":{"name":"Journal of Applied Technology and Informatics Indonesia","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122621679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Implementation of Gamification and Augmented Reality using Marker-Based Method (Case Study: TB Silalahi Center Museum)","authors":"Togu Novriansyah Turnip, Monalisa Pasaribu, Fitri Purnama Hutabarat, Hasoloan Davinson Hutapea, Winda Lorenza Sinurat","doi":"10.54074/jati.v1i2.31","DOIUrl":"https://doi.org/10.54074/jati.v1i2.31","url":null,"abstract":"By utilizing current technological developments, an android application was developed for the TB Silalahi Center Balige Museum with the application of Gamification concepts and Augmented Reality (AR) technology with marker-based methods. The gamification approach was used to provide challenges and rewards since they can encourage someone to accomplish a task, in this case, to find artifact items and information contained in artifact. The utilization of 3D object with a QR Code marker on the artifact also enables the combination of the virtual world and the real world. This application was developed to improve the experience of visitors who come to the Museum, where visitors can carry out activities by playing games and interacting with objects in the museum. The final result of the project is a application with the integration of gamification and storytelling and AR technology. This application was evaluated with the usability testing and user satisfaction reaches 72,23% meaning the application can be used and can well perform its functions.","PeriodicalId":136029,"journal":{"name":"Journal of Applied Technology and Informatics Indonesia","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121118824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Pembelajaran Berbasis Proyek Pada Pokok Bahasan Bahan Alam Untuk Meningkatkan Kreativitas Siswa Kelas VIII SMP Negeri 1 Sigumpar","authors":"R. Siagian","doi":"10.54074/jati.v1i2.39","DOIUrl":"https://doi.org/10.54074/jati.v1i2.39","url":null,"abstract":"\u0000 \u0000 \u0000 \u0000Penelitian ini dilatarbelakangi oleh rendahnya keikut sertaan siswa Sekolah Menengah Pertama Negeri 1 Sigumpar dalam mengikuti lomba karya Ilmiah yang merupakan hasil karya inovasi sendiri. Selama ini siswa dari pedesaan dianggap tidak kreatif dan sulit berinovasi. Siswa SMP diangap belum waktunya untuk memasuki tahapan penelitian. Sesuai dengan taksonomi Bloom dan Anderson,kompetensi mencipta tidak hanya untuk tingkatan SMA saja, tetapi sudah dimulai bahkan dari tingkat Sekolah Dasar. Dengan belajar mencipta dari bahan bahan yang ada dilingkungan sekitar, konstruksi berpikir anak akan terbentuk dan akan semakin kritis dan inovatif. Pembelajaran berbasis Science, Technology, Engineering, dan Mathematics (STEM) sangat perlu diberdayakan sejak dini. Hal tersebut sesuai dengan tuntutan merdeka belajar yang sedang di rencanakan pemerintah saat ini. Pembelajaran berbasis STEM menjadikan siswa bebas berkreasi dan menerapkan ide dan kreasinya. Penelitian ini dilakukan di SMP N 1 Sigumpar dengan tujuan penelitian untuk mengetahui apakah penerapan model pembelajaran berbasis proyek pada pokok bahasan bahan alam efektif dilakukan. Alam dapat menjadi bahan karya inovatif Siswa dan meningkatkan hasil belajar siswa. Metode penelitian yang dilakukan adalah kuasi Eksperimen dengan desain penelitian one group pretest – posttest design. Metode pengumpulan data yang digunakan pada penelitian ini adalah dengan observasi, soal dan uji coba dilakukan pada kela VIII A sebanyak 30 orang siswa. Analisis data dilakukan secara deskriptif dan kualitatif. Perhitungan N-Gain dilakukan pada hasil pretest dan posttest. Sedangkan pada hasil instrument observasi dilakukan rekapitulasi serta mean hingga penentuan kriteria. Penelitian menunjukkan bahwa pembelajaran berbasis proyek meningkatkan kreatifitas siswa dan hasil belajarnya . Sehingga metode pembelajaran ini sangat baik untuk diterapkan karena berdasarkan pengalaman siswa semakin semangat belajar. \u0000 \u0000 \u0000 \u0000 \u0000","PeriodicalId":136029,"journal":{"name":"Journal of Applied Technology and Informatics Indonesia","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125799155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lit Malem Ginting, Marojahan MT. Sigiro, G. Lumbantoruan, Januard Lumbangaol
{"title":"Prediksi Indikator Perawatan Menggunakan Random Forest Classification dan Classification and Regression Trees","authors":"Lit Malem Ginting, Marojahan MT. Sigiro, G. Lumbantoruan, Januard Lumbangaol","doi":"10.54074/jati.v1i2.40","DOIUrl":"https://doi.org/10.54074/jati.v1i2.40","url":null,"abstract":"Electronic medical record is a hospital information system facility that contains patient social and medical data to facilitate patient data documentation, improve health services, and access patient data. Medical records can be used to predict length of stay and estimated costs during treatment, so that patients can choose the desired treatment. The method for predicting length of stay uses the Random Forest Classification and Classification and Regression Trees (CART) algorithm which describes the relationship between the dependent and independent variables by producing a binary tree as a decision in the prediction. The model is built by changing the variables into multiclass and binary classes and using hold out split data and cross validation to measure model performance. Each model is compared and the model with the highest accuracy is selected as the best model. The highest model accuracy in the Random Forest Classification is 61.70% and the CART algorithm is 63%. The CART algorithm is the best model for predicting length of stay in this study because it produces the highest accuracy of 63%. Based on the prediction of length of stay, the estimated total cost of hospitalization can be calculated by considering the cost of drugs and inpatient rooms.","PeriodicalId":136029,"journal":{"name":"Journal of Applied Technology and Informatics Indonesia","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122128498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Adrianto Prihartantyo, Dedy Anwar, Esra Yohanna Siburian, Selma Ida Valencia
{"title":"Pengaruh Penggunaan Katalis Heterogen Kalium Hidroksida dengan Pendukung Karbon Aktif dan Katalis Bentonit Aktif Asam Terhadap Produksi Biodiesel dari Minyak Biji Karet","authors":"Adrianto Prihartantyo, Dedy Anwar, Esra Yohanna Siburian, Selma Ida Valencia","doi":"10.54074/jati.v1i2.37","DOIUrl":"https://doi.org/10.54074/jati.v1i2.37","url":null,"abstract":"\u0000 \u0000 \u0000 \u0000Biodiesel adalah bahan bakar alternatif mesin diesel yang dapat diproduksi dari minyak biji karet. Perkebunan tanaman karet di Indonesia yang luas menjadikan potensi biji karet sebagai bahan baku untuk produksi biodiesel semakin tinggi. Produktivitas biodiesel dapat ditingkatkan melalui pemanfaatan biji karet dikarenakan utilisasi biji karet yang cukup rendah dan bukan merupakan sumber bahan pangan. Kandungan asam lemak yang dimiliki minyak biji karet yang cukup tinggi dapat menyebabkan terjadinya reaksi saponifikasi dengan katalis alkali dan sulitnya proses pemisahan produk. Untuk mengatasi hal ini, dapat dilakukan dengan dua langkah proses yaitu acid pretreatment dan transesterifikasi menggunakan katalis KOH dengan support karbon aktif. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan katalis KOH support karbon aktif untuk menghasilkan biodiesel. Proses transesterifikasi dioptimasi dengan mengamati pengaruh dari konsentrasi katalis KOH/AC (1% - 3.5% b/b), rasio minyak-metanol (1:6 – 1:9) dan temperatur reaksi (45 – 65oC) dengan menggunakan metode response surface. Hasil penelitian menunjukkan bahwa jumlah katalis KOH/AC yang digunakan mempengaruhi yield biodiesel yang diperoleh. Pada konsentrasi katalis yang lebih dari 1,76%wt akan menurunkan yield, hal ini didasarkan pada ketika jumlah tertentu dari situs aktif tidak tersedia dalam media reaksi, konversi reaktan menjadi kurang sempurna dan menghasilkan yield biodiesel yang lebih sedikit. Yield optimum yang diperoleh untuk setiap variasi yaitu sebesar 0,7973 pada konsentrasi katalis KOH/AC 1,7616 (%wt), rasio mol metanol 7,8822 (mol/mol) dan temperatur 57,8879 . Bilangan setana diperoleh melalui kalkulasi dengan menggunakan persamaan Bambgoye-Hansen yang didasarkan pada komposisi metil ester pada biodiesel. Bilangan setana biodiesel pada yield optimum yaitu bernilai 60,82. \u0000 \u0000 \u0000 \u0000","PeriodicalId":136029,"journal":{"name":"Journal of Applied Technology and Informatics Indonesia","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127738665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lit Malem Ginting, Marojahan MT. Sigiro, Esra Delima Manurung, Juan Jasa Putra Sinurat
{"title":"Perbandingan Metode Algoritma Support Vector Regression dan Multiple Linear Regression Untuk Memprediksi Stok Obat","authors":"Lit Malem Ginting, Marojahan MT. Sigiro, Esra Delima Manurung, Juan Jasa Putra Sinurat","doi":"10.54074/jati.v1i2.36","DOIUrl":"https://doi.org/10.54074/jati.v1i2.36","url":null,"abstract":"Obat memiliki peranan yang sangat penting dalam dunia kesehatan, karena obat merupakan salah satu sarana untuk meningkatkan kualitas kesehatan. Oleh sebab itu obat perlu dikelola dengan baik. Pentingnya persediaan stok obat, membuat rumah sakit harus menyiapkan stok obat untuk pasien dalam jangka waktu yang tepat dan berkesinambungan. Oleh sebab itu dilakukan prediksi stok obat untuk menghindari kekosongan persediaan stok obat. Metode yang digunakan untuk memprediksi stok obat adalah metode Support Vector Regressioen dan Metode Multiple Linear Regression. Metode SVR digunakan untuk kasus regresi. Pada kasus regresi, output yang dihasilkan dalam bentuk bilangan nyata (riil) atau data sekuensial (kontinu). Sedangkan MLR digunakan untuk menentukan hubungan matematis antara sejumlah variabel acak dan meninjau beberapa variabel independen terkait dengan satu variabel dependen. Setelah melakukan eksperimen terhadap kedua algoritma tersebut maka diperoleh hasil bahwa algoritma MLR lebih baik untuk memprediksi stok obat karena memiliki MSE sebesar 1.41348% sedangkan algoritma SVR dengan MSE sebesar 0.00135%","PeriodicalId":136029,"journal":{"name":"Journal of Applied Technology and Informatics Indonesia","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114858421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"APLIKASI APOTEK BERBASIS WEB MENGGUNAKAN ARSITEKTUR MICROSERVICES (STUDI KASUS APOTEK GLEN, KAB.TOBA)","authors":"Noplin Siagian, Tiarro Elprida Tamba, Hansen Henok O Situmorang, Hernawati Samosir","doi":"10.54074/jati.v1i2.35","DOIUrl":"https://doi.org/10.54074/jati.v1i2.35","url":null,"abstract":"Dalam bidang kesehatan, teknologi informasi berkembang pesat bagi masyarakat khususnya di pedesaan. Salah satu penerapannya di bidang kesehatan pada sistem informasi. Apotek Glen merupakan salah satu toko obat di wilayah Kabupaten Toba. Saat ini sistem layanan apotek seperti transaksi penjualan obat-obatan masih dilakukan dengan cara manual yaitu dengan mencatat ke dalam buku sehingga dibangun aplikasi Apotek Glen berbasis web yang menggunakan arsitektur microservices. Alasan Aplikasi Apotek menggunakan arsitektur microservices adalah karena lebih skalabel (terukur) dan fleksibel sehingga dapat memenuhi kebutuhan pengguna. Namun pada umumnya beberapa aplikasi dibangun menggunakan arsitektur monolitik karena banyak diimplementasikan oleh developer.Tujuan utama penelitian dari aplikasi apotek yang dibangun adalah untuk mengimplementasikan arsitektur microservices dan menganalisis kedua arsitektur tersebut berdasarkan beberapa indikator yaitu struktur aplikasi, bahasa pemrograman, database dan deployment. Metode penelitian yang digunakan dalam pengembangan aplikasi apotek Glen berbasis web dilihat dari arsitektur microservices, dan arsitektur monolitik. Aplikasi yang menggunakan arsitektur monolitik diuji secara manual, sedangkan aplikasi yang menggunakan arsitektur microservices diuji menggunakan Postman. Hasil dari penelitian ini adalah aplikasi apotek berbasis web menggunakan arsitektur microservice dan perbedaan arsitektur microservices dengan arsitektur monolitik yang masing-masing memiliki karakteristik tersendiri. Arsitektur monolitik merupakan sebuah arsitektur yang menjalankan semua layanan yang berada dalam sebuah server sedangkan arsitektur microservices merupakan sebuah arsitektur yang bersifat independent yang terdiri dari berbagai service kecil yang memiliki tanggung jawab sendiri dan setiap service dapat saling berkomunikasi satu sama lain menggunakan API (Application Programming Interface).","PeriodicalId":136029,"journal":{"name":"Journal of Applied Technology and Informatics Indonesia","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121403081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Deteksi Fraud Pada Klaim Layanan Rumah Sakit Menggunakan Model Neural Network","authors":"H. Simanjuntak","doi":"10.54074/jati.v1i1.30","DOIUrl":"https://doi.org/10.54074/jati.v1i1.30","url":null,"abstract":"Salah satu masalah yang dihadapi BPJS Kesehatan Indonesia adalah adanya ketidaksesuaian pengelolaan dana jaminan sosial, dimana pendapatan yang diperoleh melalui iuran peserta BPJS tak sebanding dengan nilai klaim yang harus dibayar. Salah satu penyebab masalah tersebut adalah adanya klaim dana pelayanan rumah sakit yang tidak sesuai atau disebut juga fraud (kecurangan). Penelitian ini bertujuan melakukan prediksi potensi terjadinya kecurangan atau fraud pada klaim layanan rumah sakit dengan menggunakan data mining framework dan model Neural Network. Ada dua proses utama yang dilakukan yaitu Pemahaman bisnis dan Pembangkitan Model yang masing-masing memiliki 4 subproses. Beberapa alternatif persiapan data dilakukan yang meliputi pemilihan fitur, mengurangi dimensi, transformasi data non numerik, dan proses training yang menggunakan 5 Fold Cross Validation. Model Neural Network menghasilkan nilai akurasi dan precision lebih dari 50%, dan nilai recall mencapai 78%.","PeriodicalId":136029,"journal":{"name":"Journal of Applied Technology and Informatics Indonesia","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128301952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"User Responses of Information System Development for Examination Administration in Del Institute of Technology","authors":"Julius Martogi Hamonangan Samosir, Ester Saulina Hutabarat, Henny Flora Panjaitan, Romauli Sianipar, Monalisa Pasaribu","doi":"10.54074/jati.v1i1.6","DOIUrl":"https://doi.org/10.54074/jati.v1i1.6","url":null,"abstract":"Knowing and investigating the perspective of user is necessary in order to find out how effective an application is built for a particular purpose. This study explored the user response of Information System of Examination Administration in Del Institute of Technology. This research focused on how users think and response the information system and its interface. Using quantitative methodology, this study analyzed the data collected using the including ANOVA or T-table formulation to decide whether the information system is needed to be built with the design inserted. Result suggested that the examination administration system is needed with some recommended functions and interfaces. This study contributes in giving insight of developing examination administration information system through the perspective of the users or future users.","PeriodicalId":136029,"journal":{"name":"Journal of Applied Technology and Informatics Indonesia","volume":"167 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124667801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}