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Rafif Syari Hidayah
Universitas Mercu Buana

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Construction and Management of a Cosmos-Based Operating System Using Visual Studio Development and VMware Virtualization Technology Mohamad Yusuf; Zidane Fahrezi; Rafif Syari Hidayah; Yudha Andika Istanto; Gilas Adi Saputra
Journal Collabits Vol. 1 No. 1 (2024)
Publisher : Journal Collabits

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/collabits.v1i1.25559

Abstract

Operating systems play an important role in bridging hardware and software on various computing devices. This research focuses on building an operating system based on Cosmos, an open source project that allows the creation of operating system kernels quickly and efficiently. In the process, we leverage Visual Studio development tools to develop and maintain the kernel, while VMware virtualization technology is used to test and manage development. This research contributes to further understanding of the development of Cosmos-based operating systems with optimal use of Visual Studio development tools and VMware virtualization technology
Online Food Ordering App Rafif Syari Hidayah; Rehan Saputra; Krisna Septiawan; Muhammad Aditya Ramadhan; Misni Misni
Journal Collabits Vol. 3 No. 2 (2026)
Publisher : Journal Collabits

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/collabits.v3i2.31236

Abstract

Online food ordering systems have become an important component of digital commerce because users increasingly expect fast, convenient, and reliable transaction processes. However, system development should not focus only on functional ordering features; it should also consider usability, transaction security, and the ability to transform transaction records into information for future analytical use. This study aims to design and develop a web-based Online Food Ordering Application using the Software Development Life Cycle (SDLC) Waterfall approach. User and seller requirements are translated into major functions including registration and authentication, food and beverage browsing, shopping cart management, checkout, payment, order history, product management, and order confirmation. A conceptual framework is introduced to explain the relationships among user needs, system design, usability, security, transaction efficiency, and the analytical utilization of transaction data. The application was implemented using PHP with HTML and CSS for the interface and a database for operational records. Functional validation was conducted using black-box testing on the documented login, menu, and payment scenarios. All documented scenarios produced the expected outputs and were categorized as passed. The results show that the prototype supports the basic food ordering workflow. Nevertheless, the present evaluation is limited to functional testing and does not yet provide quantitative usability measurements, comprehensive security testing, transaction-time benchmarking, or experimental evaluation of recommender and Business Intelligence modules. The stored transaction and order-history data are therefore positioned as a foundation for future behavioral analytics, Business Intelligence dashboards, and personalized food recommendation development. TRANSLATE with x English Arabic Hebrew Polish Bulgarian Hindi Portuguese Catalan Hmong Daw Romanian Chinese Simplified Hungarian Russian Chinese Traditional Indonesian Slovak Czech Italian Slovenian Danish Japanese Spanish Dutch Klingon Swedish English Korean Thai Estonian Latvian Turkish Finnish Lithuanian Ukrainian French Malay Urdu German Maltese Vietnamese Greek Norwegian Welsh Haitian Creole Persian     TRANSLATE with COPY THE URL BELOW Back EMBED THE SNIPPET BELOW IN YOUR SITE Enable collaborative features and customize widget: Bing Webmaster Portal Back