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All Journal Jurnal Teknologi INTEK: Informatika dan Teknologi Informasi JIEMS (Journal of Industrial Engineering and Management Systems) G-Tech : Jurnal Teknologi Terapan Indonesian Journal of Computing, Engineering, and Design Jurnal Restikom : Riset Teknik Informatika dan Komputer Journal of Community Services: Sustainability and Empowerment Jurnal Teknologi
Rafie Djajasoepena
Sampoerna University
Arts Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Analisis Keterkaitan Pengguna dengan Aplikasi Gim pada Ponsel Pintar di Jabodetabek Rafie Djajasoepena; Putri Yuni Lestari
INTEK : Jurnal Informatika dan Teknologi Informasi Vol. 5 No. 2 (2022)
Publisher : Universitas Muhammadiyah Purworejo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37729/intek.v5i2.1964

Abstract

Peran ponsel pintar sebagai alat komunikasi lekat dengan masyarakat di Indonesia, lebih khusus di Jabodetabek. Pelanggan ponsel di Indonesia di tahun 2020 menunjukkan bahwa tiap 1 warga negara melanggan 1,3 seluler, angka ini sungguh besar. Sejumlah aplikasi dapat terinstalasi pada ponsel pintar, termasuk di dalamnya aplikasi gim. Gim pada ponsel dapat dimainkan secara luring maupun daring, dan pengguna menghabiskan waktu luang bersama gim ponsel ini. Tujuan dari penelitian ini adalah untuk menganalisa keterkaitan pengguna ponsel pintar di Jabodetabek berdasarkan gender, jumlah gim yang terinstalasi pengguna, preferensi gim daring atau luring, dan preferensi gim berbayar atau gratis. Responden pria (59%) ditemukan lebih banyak bila dibandingkan dengan responden wanita (41%) pada penelitian ini. Lalu ditemukan mayoritas 34% responden menginstalasi 3 atau lebih aplikasi gim, bila dibandingkan dengan jumlah yang lain. Berikutnya didapati 150 responden (76%) ditemukan memilih gim gratis. Sesi malam hari (48%) merupakan waktu yang dipilih untuk bermain gim. Terakhir bila dibandingkan berbayar, dan 42% responden memilih untuk bermain gim luring dan daring.
ANALYTICAL HIERARCHY PROCESS AND TOPSIS APPROACH TO PERFORM SUPPLIER SELECTION IN CONSTRUCTION INDUSTRY Filscha Nurprihatin; Riki Antonius; Glisina Dwinoor Rembulan; Rafie Djajasoepena; Eko Sulistyo
JIEMS (Journal of Industrial Engineering and Management Systems) Vol 15, No 2 (2022): Journal of Industrial Engineering and Management Systems
Publisher : Universitas Bunda Mulia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30813/jiems.v15i2.4124

Abstract

Suppliers play an important role as suppliers of production raw materials, making companies must choose suppliers correctly. This paper discusses the best supplier selection to avoid financial and non-financial losses This paper uses four criteria for determining the best supplier, such as price, lead time, payment terms, and quality & service. A reasonable price following initial planning is always expected by the customers. Lead time is an essential consideration to ensure on-time delivery. Failure to perform on-time delivery will direct in poor payment terms. Besides, any products that do not meet quality standards will always lead to waste. Analytical Hierarchy Process (AHP) and Technique Order Preference by Similarity to Ideal Solution (TOPSIS) are used to select and determine the best supplier for the company. Pairwise comparisons are performed by making comparisons between each criterion and the alternatives made at each level of the hierarchy in pairs to get the value of the importance of the elements in the form of a qualitative opinion. The weight values for price, lead time, payment terms, and quality and service criteria are 0.0709, 0.1409, 0.2682, and 0.5200, respectively. According to AHP, alternative weight values in each criterion are 0.3899, 0.3063, and 0.3038, namely supplier A (rank 1), supplier B (rank 2), and supplier C (rank 3), respectively. However, the results of supplier selection using the TOPSIS method are supplier B (rank 1), supplier C (rank 2), and supplier A (rank 3) with values of 518.4025, 469.2017, and 412.3928, respectively.
Perancangan Sistem Manajemen Dokumen Berbasis Paperless Buku Syarat Kecakapan Umum Pramuka Siaga Rafie Djajasoepena; Eko Sulistyo; Putri Yuni Lestari; Ery Eryanto; Muhammad Agni Catur Bhakti
Jurnal RESTIKOM : Riset Teknik Informatika dan Komputer Vol 5 No 1 (2023): April
Publisher : Program Studi Teknik Informatika Universitas Nusa Putra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52005/restikom.v5i1.114

Abstract

Buku Syarat Kecakapan Umum (SKU) digunakan adik-adik Pramuka Siaga dalam mendokumentasikan sejumlah pencapaian keahlian terkait Pramuka Indonesia. Tiap keahlian yang telah dicapai merupakan hasil uji dari Pembina maupun Pembantu Pembina yang kemudian memberi verifikasi dengan membubuhkan tanggal uji dan tandatangan. Buku SKU berukuran saku ini rentan untuk hilang dan rusak. Hal ini dapat merugikan adik-adik Pramuka Siaga baik perorangan maupun beregu yang tengah berupaya untuk naik tingkat ke Siaga, Mula, Tata, dan Bantu. Perlu diteliti dan dirancang sebuah sistem manajemen dokumen paperless yang tersentralisasi agar buku SKU dapat tetap merekam pencapaian keahlian adik-adik Pramuka Siaga dengan menghindari duplikasi dokumen. Sistem manajemen dokumen memfasilitasi Pembina untuk dapat memberikan persetujuan hasil uji di tiap butir keahlian, dan adik-adik juga dapat memonitor pencapaian mereka. Adik-adik Pramuka Siaga dapat menggunakan ponsel pintar dalam memantau progres pencapaian, dan Pembina juga dapat membubuhkan tandatangan elektronik melalui perangkat komputer seperti desktop maupun laptop. Kombinasi teknologi antara media penyimpanan berbasis awan tersinkronisasi Google Drive dan fitur tandatangan elektronik pada dokumen Portable Document Format (PDF) dapat memberi solusi pada permasalahan serta memberikan kemudahan di masa yang akan datang dengan tetap berpegang pada aturan yang telah ada selama ini.
Analisa Data Pencatatan Aktivitas Olahraga pada Wearable Device Eko Sulistyo; Rafie Djajasoepena
INTEK : Jurnal Informatika dan Teknologi Informasi Vol. 6 No. 1 (2023)
Publisher : Universitas Muhammadiyah Purworejo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37729/intek.v6i1.3049

Abstract

Perangkat dengan sensor memudahkan kehidupan manusia dalam merekam data digital. Perangkat yang dikenakan banyak ditemukan di pasar daring-luring Indonesia dengan sejumlah merek, tipe dan harga yang terjangkau. Manfaat dari wearable device ini demikian luas meskipun telah spesifik terkait dengan olahraga dan kesehatan, hingga perlu diketahui seberapa optimal perangkat ini berkontribusi pada pengguna. Tujuan dari penelitian ini untuk mengetahui manfaat yang didapatkan dari penggunaan wearable device beserta hal-hal yang melingkupinya. Penelitian ini menggunakan metode kuantitatif dengan data primer dan pengukuran deskriptif. Responden yang berdomisili di Jabodetabek dan lainnya ini gemar berolahraga dengan sebaran intensitas terbanyak mulai sekali hingga tiga kali dalam sepekan. Didapati mayoritas (48,41%) responden gemar berolahraga di indoor dan outdoor. Selanjutnya mayoritas responden (59,15%) tidak merekam hasil olahraga pada perangkat yang dikenakan tersebut. Sebanyak 96,5% responden sangat setuju dan setuju bahwa wearable device memberi manfaat, demikian juga 82.8% responden juga sangat setuju dan setuju bahwa perangkat yang dikenakan ini berdampak pada gaya hidup sehat.
Inventory Lot Sizing Decisions for Material Requirements Planning to Minimize Inventory Costs Filscha Nurprihatin; Rafie Djajasoepena; Vanessa Bertholdo Vargas; Moacyr Machado Cardoso Junior; Ali Vaezi
JIEMS (Journal of Industrial Engineering and Management Systems) Vol 16, No 2 (2023): Journal of Industrial Engineering and Management Systems
Publisher : Universitas Bunda Mulia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30813/jiems.v16i2.4722

Abstract

Inventory control is one of the most important factors in achieving optimal organizational performance. Material Requirement Planning (MRP) is a common method used by businesses to manage inventories. This study focuses on a hydraulic firm that has been in operation since 2016. This research examines the planning of eleven components to get the best planning for the company. This study contributes to the integration of Moving Average (MA) and Exponential Smoothing (ES) forecasting techniques alongside the MRP and three lot sizing techniques, such as LFL, EOQ, and LUC. The minimum error values between MA and ES are evaluated and followed by the comparison between three lot sizing techniques. The result shows that ES (α=0.1) is selected as the best forecasting technique, and LUC presents the lowest total inventory cost. However, LUC is only 0.05 percent lower than what LFL presents. A larger difference is shown by EOQ with 14.57 percent higher than LUC which makes EOQ unlikely to be selected.
Enhancing Respiratory Disease Diagnosis through FMCW Radar and Machine Learning Techniques Ariana Tulus Purnomo; Raffy Frandito; Edrick Hansel Limantoro; Rafie Djajasoepena; Muhammad Agni Catur Bhakti; Ding-Bing Lin
G-Tech: Jurnal Teknologi Terapan Vol 8 No 1 (2024): G-Tech, Vol. 8 No. 1 Januari 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i1.3693

Abstract

Respiratory diseases require early diagnosis and continuous monitoring, but existing methods involve risky physical contact. This study proposes a new system that uses FMCW radar and machine learning to monitor breathing without contact. FMCW radar can detect respiratory movements in real-time, while machine learning can classify respiratory waveforms. This study evaluates the system with cross-validation Shuffle Split, K-fold, and Stratified K-fold. The results show that Random Forest has the highest accuracy of 94.6% and Naïve Bayes has the shortest time of 0.055 seconds. Shuffle Split performs best overall. This study shows the feasibility and potential of the system for the detection, response, and tracking of respiratory diseases in emergencies.
Battle Royale Console Game Performance Analysis (Case Study: East Jakarta, Indonesia) Azizah Rahim, Noorfi; Totong, Allister; Ikhsan Effendy, Muhammad; Djajasoepena, Rafie; Maindratama, Abdullah; Eryanto, Ery; Wandy, Wandy
Jurnal Teknologi Vol 17 No 1 (2024): Jurnal Teknologi
Publisher : Jurnal Teknologi, Fakultas Teknik, Universitas AKPRIND Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/jurtek.v17i1.4695

Abstract

Battle Royale (BR) genre games are still played and have massive players around the globe. They are characterized by survival and exploration elements, featuring last-man-standing gameplay that motivates players to be the final contestant in the game. This BR can now be played on single platforms and cross-platform. Apex Legends is a free-to-play hero shooter where competitors from across the frontier join forces to battle for glory, fame, and fortune. Apex Legends can be played on PlayStation, Xbox, Steam, and Switch. This research aims to understand the data captured by the game Apex Legends, played on the PlayStation 5 console and displayed on a 4K television. This data was then analyzed to measure the correlation with game performance during gameplay. This research used a quantitative method, primary data, and descriptive measurements. From the findings, it can be concluded that the FPS for this game performed well since it was still near 60 FPS (59.81) with a standard deviation of 1.07. IO could not be analyzed for network performance since no official parameters for this IO were found on the official web during the research. However, Packet Loss and Choke performed well, with an average of 0 and a standard deviation of around 0. The ping value is enormous, with a significant standard deviation gap; this can happen because the server distance is longer to Tokyo from Jakarta than Singapore. Even though the latency was high, gamers still found the matches enjoyable.   
Solar-Powered Highschool Library Information System Design and Implementation Lestari, Putri Yuni; Triawan, Farid; Lestari, Tika Endah; Harjon, Aditiya; Belfaqih, Idrus Husin; Djajasoepena, Rafie; Ramadhan, Ammar; Wandy, Wandy
Journal of Community Services: Sustainability and Empowerment Vol. 2 No. 02 (2022): September 2022
Publisher : Center for Research and Community Service of Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/jcsse.v2i2.311

Abstract

A school library is important in education, especially in high schools to support day-to-day operations. The purpose of this community service is to develop and install a solar-powered Library Information System for the State Highschool No. 6 Cirebon (SMA Negeri 6 Cirebon), Indonesia, in which the existing library operations were done manually. First, for the library database server, a small-size Raspberry Pi is utilized with a SLiMS library automation system installed and run over the school’s local network. Then, a sufficient energy resource is required to run the computer system; in this case, to support running the Raspberry Pi device. For this, a solar panel set-up is installed at the school to generate the electric power as the renewable energy resouce. Packages of solar panels with the battery are easily found in the online Indonesian marketplace, and this made the implementation of solar energy could become faster. In addition, a series of academic seminars is also held to support the library system operation as well as the school teachers.
Junior Highschool Library Automation System Solution and Implementation Sulistyo, Eko; Bhakti, Muhammad Agni Catur; Nurprihatin, Filscha; Liman, Surya Danusaputro; Lestari, Tika Endah; Islam, Sri Susilawati; Mileniawati, Indah Riantantri; Djajasoepena, Rafie; Ilham, Oryzea Sativa; Effendy, Muhammad Ikhsan; Wandy, Wandy
Journal of Community Services: Sustainability and Empowerment Vol. 3 No. 01 (2023): March 2023
Publisher : Center for Research and Community Service of Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/jcsse.v3i1.346

Abstract

A high school library is a crucial part of educational infrastructures. Textbooks, e-books, and other collections in a library need to be recorded for circulation and administrative support needs. To provide data for statistical analysis, users of the library must tracked and recorded. Several library activities can be supported by a library automation system (SLiMS). East Jakarta's SMP Negeri 174 Jakarta is a public junior high school with a library. This project to install and implement SLiMS along with configuring the local network and library server. As a result, the library's infrastructure has been properly set up to support the library management system. Data entry for books and library members is currently underway. A guestbook option has also been added, and it is now switching from a manual guestbook to an electronic one to in order to precisely record library visitors.
Introducing Smart Machines Technology and Netiquette for Highschool Students Rahim, Noorfi Azizah; Djajasoepena, Rafie; Purnomo, Ariana Tulus; Setiawan, Iwan; Triawan, Farid; Bhakti, Muhammad Agni Catur; Lestari, Tika Endah; Sulistyo, Eko; Solihin, Unang; Eryanto, Ery; Wandy, Wandy
Journal of Community Services: Sustainability and Empowerment Vol. 3 No. 02 (2023): September 2023
Publisher : Center for Research and Community Service of Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/jcsse.v3i2.388

Abstract

Artificial intelligence is evolving and changing what work means in industrial settings. Smart machines are replacing numerous tasks normally done by human workers. Thus, the young generation needs to be prepared and guided, making them aware of what competencies they should acquire before entering the society. The present community service activity aims to communicate the importance of understanding Smart Machines Technology and Netiquette for Highschool-Students in a public senior high school in Cirebon city, namely SMAN 6 Cirebon. A seminar about smart machines and netiquette was conducted. The young generation frequently uses social networking sites to communicate with friends. Ethics in communication must be appropriately implemented in online platforms. In parallel, a digital library system was developed in the school. Literature review, interviews with digital technology professionals, and discussions with school librarians were carried out throughout this community service activity.
Co-Authors AA Sudharmawan, AA Aditiya Harjon Agustin, Charles Ali Vaezi Anak Agung Ngurah Perwira Redi Ariana Tulus Purnomo Bahagia, Katherine Luckman Belfaqih, Idrus Husin Darmawanto, Gabrielle Orla Dewa, Gilang Raka Rayuda Ding-Bing Lin Edrick Hansel Limantoro Effendy, Muhammad Ikhsan Eko Sulistyo Eko Sulistyo Eko Sulistyo Ery Eryanto Eryanto, Ery Fernandez, Nikolas Krisma Hadi Frandito, Raffy Githa, Arum Glisina Dwinoor Rembulan Gunawan, Daisy Christina Gunawan, Samuel Theodore Ikhsan Effendy, Muhammad Ilham Prasetyo Ilham, Oryzea Sativa islam, sri susilawati Iwan Setiawan Kinantya, Valereyna Jingga Kusuma, Felicia Lestari, Putri Yuni Lestari, Tika Endah Liman, Surya Danusaputro Limantoro, Edrick Hensel Lin, Ding Bing Maindratama, Abdullah Media Anugerah Ayu, Media Anugerah Mileniawati, Indah Riantantri Moacyr Machado Cardoso Junior Muhammad Agni Catur Bhakti Muhammad Johan Alibasa Noorfi Azizah Rahim Nurfais, Ahmad Nurprihatin, Filscha Putra, Jeremy Triutomo Putri Yuni Lestari Putri Yuni Lestari Raffy Frandito Ramadhan, Ammar Riki Antonius Syamsuri, Ady Totong, Allister Triawan, Farid Unang Solihin Vanessa Bertholdo Vargas Wandy Wandy