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Sistem Pendukung Keputusan Pemilihan Mobil Bekas Berbasis Web Menggunakan Metode Weighted Product Prayogi, Nandang; Sudarmaningtyas, Pantjawati; Arrosyidi, Achmad
Journal of Applied Computer Science and Technology Vol. 6 No. 2 (2025): Desember 2025
Publisher : Indonesian Society of Applied Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52158/jacost.v6i2.1224

Abstract

Limited information about vehicle conditions and manual selection methods often leaves prospective used car buyers uncertain. This problem occurs at the Sumber Rejeki Showroom, which has not yet adopted a decision support system to assist buyers in selecting used cars. This study aims to develop a web-based decision support system for used car selection using the Weighted Product (WP) method. Using a quantitative approach, the study involves collecting car attribute data, assigning criterion weights, and testing the system. Validation is conducted by comparing system-generated rankings with manual WP calculations and by performing white box testing to verify the correctness of the system logic. The system development follows the intelligence, design, choice, and implementation stages. The results show that the system’s ranking aligns exactly with manual calculations, confirming the proper application of the WP method. White box testing indicates error-free WP computations, and a Cyclomatic Complexity score of 10 suggests that the code is maintainable. Overall, the study demonstrates that the developed web-based decision support system can effectively support used car selection, enhance decision-making efficiency, and increase user confidence.
Peningkatan Kompetensi Teknologi Informasi Siswa MAN Kota Surabaya melalui Pelatihan Desain Basis Data untuk Pengembangan Aplikasi Mobile Titik Lusiani; Didiet Anindita Arnandy; A.B. Tjandrarini; Nunuk Wahyuningtyas; Achmad Arrosyidi
Jurnal Pengabdian Masyarakat Vol. 2 No. 1 (2025): November
Publisher : LPPM Sekolah Tinggi Ilmu Komputer PGRI Banyuwangi

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Abstract

Keterampilan merancang basis data merupakan kompetensi krusial dalam pengembangan aplikasi mobile modern. Kegiatan Pengabdian kepada Masyarakat (PKM) ini bertujuan untuk meningkatkan kompetensi teknologi informasi siswa MAN Kota Surabaya melalui pelatihan desain basis data yang difokuskan pada aplikasi mobile. Metode pelaksanaan mencakup identifikasi kebutuhan, penyusunan materi, pelatihan tatap muka, praktik pembuatan Entity-Relationship Diagram (ERD), normalisasi, serta pemetaan skema basis data. Evaluasi dilakukan dengan pre-test dan post-test, serta penilaian hasil rancangan database peserta. Hasil menunjukkan peningkatan rata-rata skor pengetahuan siswa dari  rata-rata 73 menjadi 97 setelah pelatihan dan sebagian besar berhasil menghasilkan ERD dan skema tabel sesuai prinsip normalisasi dasar. Kegiatan ini berkontribusi signifikan terhadap literasi digital siswa dan kesiapan mereka dalam pengembangan aplikasi mobile berbasis data. Kegiatan ini mendukung penguatan literasi digital dan kesiapan siswa menghadapi kebutuhan kompetensi industri teknologi saat ini [1], [2].