Kartika, Dewi (2025) IMPLEMENTASI METODE TRIPLE EXPONENTIAL SMOOTHING PADA SISTEM PERAMALAN PENJUALAN BERBASIS WEB (Studi Kasus: Planet Fashion Kuningan). S1 / D3 thesis, Universitas Kuningan.

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Official URL: https://rama.uniku.ac.id

Abstract

Fluktuasi permintaan di Planet Fashion Kuningan menyebabkan kesulitan dalam
mengelola stok, yang berisiko menimbulkan kekurangan atau kelebihan stok dalam
memenuhi permintaan pembeli. Dengan metode peramalan yang akurat,
pengelolaan stok bisa dilakukan dengan lebih baik dan membantu meningkatkan
kinerja bisnis. Penelitian ini bertujuan untuk mengembangkan sistem peramalan
penjualan berbasis web guna membantu pemilik usaha menentukan jumlah stok
yang sesuai dengan permintaan pasar setiap bulan. Metode yang digunakan adalah
Triple Exponential Smoothing (Holt-Winters) model Multiplicative Seasonal, yang
mempertimbangkan faktor level, tren, dan musiman dalam analisis data penjualan.
Peramalan ini dilakukan berdasarkan data historis guna menghasilkan prediksi
yang lebih akurat. Hasil penelitian menunjukkan bahwa sistem informasi yang
dikembangkan mampu memberikan prediksi penjualan dengan tingkat akurasi
tinggi. Pengujian akurasi menggunakan Mean Absolute Percentage Error (MAPE)
pada enam sampel jenis produk menunjukkan nilai error dibawah 10%, yang masuk
dalam kategori sangat baik. Sistem ini dapat membantu pemilik usaha dalam
mengambil keputusan yang lebih tepat terkait pengelolaan stok. Keakuratan sistem
juga didukung oleh skor validasi pengguna sebesar 86,4%, sehingga mampu
memenuhi permintaan pasar secara optimal serta meningkatkan efisiensi
operasional dan daya saing Planet Fashion Kuningan. Dengan adanya sistem
peramalan ini, diharapkan bisnis dapat beradaptasi lebih baik terhadap perubahan
permintaan dan menghindari potensi kerugian akibat kesalahan dalam pengelolaan
stok.
Kata Kunci: Peramalan Penjualan, Triple Exponential Smoothing, Holt-Winters

Fluctuations in consumer demand at Planet Fashion Kuningan have created
significant challenges in inventory management, often resulting in either stock
shortages or surpluses that hinder the business’s ability to meet customer needs
effectively. The use of an accurate forecasting method enables improved inventory
management and contributes positively to overall business performance. This study
aims to develop a web-based sales forecasting system to assist business owners in
determining optimal monthly stock quantities aligned with market demand. The
forecasting model employed is the Triple Exponential Smoothing (Holt-Winters)
Multiplicative Seasonal method, which integrates level, trend, and seasonal
components in analyzing sales data. Forecasting is based on historical sales data
to generate accurate future predictions. The results demonstrate that the developed
information system is capable of producing highly accurate sales forecasts.
Accuracy testing using the Mean Absolute Percentage Error (MAPE) method on
six product samples yielded error values below 10%, all of which are classified
within the "excellent" accuracy range. The implementation of this forecasting
system can support business owners in making informed decisions regarding
inventory control. Its reliability is further supported by a user validation score of
86.4%, enabling them to better meet market demand and enhance both operational
efficiency and business competitiveness. By adopting this system, Planet Fashion
Kuningan is expected to respond more effectively to demand fluctuations and
minimize potential losses due to stock mismanagement.
Keyword: Sales Forecasting, Triple Exponential Smoothing, Holt-Winters

Item Type: Thesis (S1 / D3)
Uncontrolled Keywords: Kata Kunci: Peramalan Penjualan, Triple Exponential Smoothing, Holt-Winters Keyword: Sales Forecasting, Triple Exponential Smoothing, Holt-Winters
Subjects: H Social Sciences > HF Commerce
Divisions: Fakultas Ilmu Komputer > S1 Sistem Informasi
Depositing User: S.Kom Dewi Kartika
Date Deposited: 23 Sep 2025 03:36
Last Modified: 23 Sep 2025 03:36
URI: https://rama.uniku.ac.id/id/eprint/3328

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