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All Journal JUSTIN (Jurnal Sistem dan Teknologi Informasi) Proceeding Applied Business and Engineering Conference
Nirad, Dwi Welly Sukma
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Optimization of Tsunami and Earthquake Awareness Through Digital Mapping Using a Decision Support System with Simple Additive Weighting (SAW) in Padang City Vadreas, Andrew Kurniawan; Fryonanda, Harfebi; Arsyah, Ulya Ilhami; Maulana, Raihan Efel; Nirad, Dwi Welly Sukma
ABEC Indonesia Vol. 12 (2024): 12th Applied Business and Engineering Conference
Publisher : Politeknik Negeri Bengkalis

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Abstract

Padang is a city that is prone to earthquakes and tsunamis due to its location between the India and Asia plateson the west coast and being crossed by the Great Sumatran fault. The Padang coastal region is a strong source ofearthquakes and tsunamis. Despite having experienced earthquakes in 2006, 2007, and 2009, Padang still facesdifficulties in managing tsunami evacuation because of the lack of infrastructure and straight roads from the coast tohigher ground. The presence of rivers in Padang causes the tsunami waves to be concentrated within a 200-meter radiusand the evacuation routes are hindered by the presence of bridges that are not durable against tsunamis and earthquakes.Additionally, traffic congestion after an earthquake exacerbates the evacuation problems. This study aims to map the riskand potential of earthquakes and tsunamis in Padang 3 KM from the coast by comparing population and building datawith the availability of shelters. The Simple Additive Weighting (SAW) method, as part of Geographic InformationSystem, is used to analyze demographic data and shelter locations. The results show that Koto Tangah is the area with thehighest risk level for earthquakes and tsunamis.
Sistem Informasi Manajemen dan Peramalan Penjualan Obat pada Apotek Iliran Farma dengan Metode Holt-Winters Asfar, Thomas Nobel; Rahmadoni, Jefril; Nirad, Dwi Welly Sukma
JUSTIN (Jurnal Sistem dan Teknologi Informasi) Vol 14, No 2 (2026)
Publisher : Jurusan Informatika Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/justin.v14i2.100181

Abstract

Pengelolaan persediaan obat merupakan komponen penting dalam operasional apotek untuk mendukung pelayanan kefarmasian yang berkualitas. Penelitian ini mengkaji permasalahan pengelolaan stok obat di Apotek Iliran Farma, Kota Padang, Sumatera Barat, yang menggunakan sistem informasi dengan fungsionalitas terbatas sehingga kurang efisien. Sistem ini tidak memiliki fitur peringatan stok minimum, pelacakan nomor batch, pemantauan tanggal kedaluwarsa, maupun peramalan penjualan berbasis data historis yang menyebabkan risiko kehabisan stok, penumpukan obat kurang laku, serta kesulitan dalam pelacakan obat bermasalah. Tujuan penelitian ini adalah membangun sistem informasi manajemen dan peramalan penjualan obat berbasis web dengan metode Holt-Winters untuk meningkatkan efisiensi pengelolaan persediaan dan mendukung perencanaan pengadaan obat secara akurat. Metodologi penelitian meliputi studi literatur, observasi, wawancara, dan analisis dokumen, dengan metode pengembangan sistem menggunakan model Waterfall. Pengembangan sistem informasi ini dikembangkan menggunakan pendekatan Waterfall, dengan Hono dan FastAPI untuk backend, React untuk frontend, serta PostgreSQL sebagai basis data. Hasil pengujian black box mengonfirmasi bahwa semua fungsionalitas berjalan sesuai spesifikasi. Fitur peramalan penjualan menghasilkan nilai agregat Mean Absolute Percentage Error (MAPE) sebesar 18,8%, yang menunjukkan tingkat akurasi prediksi yang baik. Simulasi proses bisnis menunjukkan peningkatan efisiensi yang signifikan: 80,7% pada manajemen inventori, 91,8% pada penanganan obat kedaluwarsa, dan 8,8% pada proses penjualan. Sistem ini terbukti mampu meningkatkan efisiensi operasional, akurasi perencanaan, serta pengambilan keputusan berbasis data.
Co-Authors Andrew Kurniawan Vadreas Arsyah, Ulya Ilhami Asfar, Thomas Nobel Fryonanda, Harfebi Maulana, Raihan Efel Rahmadoni, Jefril