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Fransiska Diana Hermanto
Universitas Katolik Darma Cendika
Decision Sciences, Operations Research & Management Engineering Environmental Science Industrial & Manufacturing Engineering Transportation

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Penerapan Algoritma Apriori Dalam Analisis Pola Pembelian Pelanggan Pada Usaha Kafe Fransiska Diana Hermanto; Agrienta Bellanov
Industrial & System Engineering Journals (ISEJOU) Vol. 4 No. 1 (2025): ISEJOU, Vol 4, No 1 Desember 2025
Publisher : Universitas Katolik Darma Cendika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37477/isejou.v4i1.888

Abstract

The increasing volume of sales transaction data in café businesses requires proper data management so that it can be utilized to support business decisionmaking. However, transaction data are often not optimally analyzed, causing customer purchasing patterns to remain unidentified. This study aims to identify customer purchasing patterns at Little Flock Cafe using the Apriori algorithm. The method employed is applied research with a quantitative approach. The data analyzed consist of one month of sales transaction records obtained through documentation of café sales data. The transaction data are represented in a boolean table and processed using the R software with the arulespackage. Minimum support and confidence parameters are applied to generate association rules among products. The results indicate several menu combinations that are frequently purchased together with lift values greater than one, indicating positive relationships among items. These purchasing patterns can be utilized to support menu arrangement strategies, promotional bundle development, and marketing effectiveness improvement. Therefore, the application of the Apriori algorithm is proven to provide useful insights for data-driven decision-making in café sales management.
Analisis Kelayakan Usaha Bisnis Minuman Sparkling Watermelon Di Universitas Katolik Darma Cendika Armadeo Ruben Canariesa; Fransiska Diana Hermanto
Industrial & System Engineering Journals (ISEJOU) Vol. 3 No. 2 (2025): ISEJOU, Vol 3, No 2 Juni 2025
Publisher : Universitas Katolik Darma Cendika

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Abstract

Penelitian ini bertujuan untuk menganalisis kelayakan bisnis minuman sparkling watermelon sebagai usaha mikro di lingkungan mahasiswa universitas katolik darma cendika. Permasalahan yang diangkat adalah belum tersedianya produk minuman ringan berkarbonasi rasa semangka yang menyasar segmen mahasiswa, meskipun terdapat potensi pasar yang besar. Metode penelitian menggunakan pendekatan deskriptif kuantitatif dan kualitatif. Data diperoleh melalui survei daring, observasi lapangan, wawancara, dan studi biaya. Analisis dilakukan pada lima aspek kelayakan: pasar, teknis, manajerial, sosial-lingkungan, dan finansial. Hasil studi menunjukkan bahwa usaha ini layak dijalankan. Analisis finansial menghasilkan nilai net present value (NPV) sebesar Rp254.110.921 (positif), payback period pada bulan ke-7, benefit cost ratio (BCR) sebesar 3,25, profitability index (PI) sebesar 1517,89, dan internal rate of return (IRR) sebesar 41% yang melebihi tingkat diskonto 20%. Dari hasil tersebut, dapat disimpulkan bahwa usaha Sparkling Watermelon memiliki prospek usaha yang menguntungkan dan berkelanjutan untuk dikembangkan di kalangan mahasiswa.
Co-Authors Armadeo Ruben Canariesa