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All Journal Jurnal Manuhara: Pusat Penelitian Ilmu Manajemen Dan Bisnis ENCRYPTION: Journal of Information And Technology
Nurul Aslamiah Istiqomah
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Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance

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UI/UX Design of the Mobile Application 'Kalem' Using the Double Diamond Method Rembulan Cahyaninghati; R.M Chairil Andri; Nurul Aslamiah Istiqomah
ENCRYPTION: Journal of Information And Technology Vol. 3 No. 1 (2024): ENCRYPTION: Journal of Information And Technology, July 2024
Publisher : ASIAN PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58738/encryption.v3i1.577

Abstract

Abstract This research aims to design a user interface (UI) for a mobile application named "Kalem" to assist users in tracking their menstrual cycles and to analyze user experience (UX). The Double Diamond methodology, encompassing the Discover, Define, Develop, and Deliver phases, was employed to ensure a comprehensive approach to UI/UX design. The design process commenced with the Discover phase to identify user needs and problems. Subsequently, the Define phase was used to formulate the primary problem and requirements that the application must fulfill. In the Develop phase, design ideas were developed into testable prototypes. Finally, the Deliver phase resulted in a final prototype ready for user testing. The usability testing phase utilized the System Usability Scale (SUS) to measure and assess the ease of use and satisfaction of users. Based on the SUS calculation, the obtained score of 86.0753 indicates a positive result, placing the Kalem application design in the 'acceptable' category, suggesting that users are satisfied with its usability.
Implementasi Metode Extreme Programming dalam Pengembangan Website E-Commerce Percetakan (Studi Kasus: Wijaya Copy Center): Studi Kasus: Wijaya Copy Center Fayza Namira Musahid; Hadi Wijaya; Nurul Aslamiah Istiqomah
Jurnal Manuhara : Pusat Penelitian Ilmu Manajemen dan Bisnis Vol. 4 No. 3 (2026): Jurnal Manuhara: Pusat Penelitian Ilmu Manajemen dan Bisnis
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/manuhara.v4i3.2694

Abstract

Service digitalization has become an important strategy for businesses to improve operational effectiveness and service quality. However, the ordering process at Wijaya Copy Center was still conducted manually through WhatsApp, causing file accumulation, undocumented order histories, and inefficient service management. This study aims to develop a printing e-commerce website using the Agile Extreme Programming (XP) method through a case study approach involving observation and 5W+1H interviews with the business owner. The system was developed iteratively through the planning, design, coding, testing, and release phases using Next.js and TypeScript. System evaluation was conducted using Black Box Testing, the System Usability Scale (SUS) with respondents determined using the Lemeshow formula, and Miles and Huberman qualitative analysis with the Technology Acceptance Model (TAM) approach. The results show that all system features functioned properly based on Black Box Testing. The SUS evaluation achieved a score of 80.63, categorized as Acceptable, Excellent, and Grade A. The TAM analysis indicated that the website has been integrated into daily operations, improved order management, increased service efficiency, and generated structured customer and transaction data that support operational monitoring and business decision-making. Therefore, the website effectively supports the digitalization of printing services and enhances business process efficiency at Wijaya Copy Center.
Co-Authors Fayza Namira Musahid Hadi Wijaya R.M. Chairil Andri Rembulan Cahyaninghati