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USULAN SISTEM PEMESANAN UNTUK MENINGKATKAN SERVICE LEVEL PADA SISTEM HEIJUNKA
- Source :
- J@ti Undip: Jurnal Teknik Industri, Vol 3, Iss 3, Pp 191-202 (2012)
- Publication Year :
- 2012
- Publisher :
- Diponegoro University, 2012.
-
Abstract
- PT X merupakan distributor yang melayani permintaan suku cadang untuk wilayah Jawa Tengah dan Yogyakarta. Salah satu ukuran kepuasan pelanggan adalah service level.Berdasarkan data perusahaan pada bulan Januari – April 2007, service level global untuk keseluruhan item masih berada dibawah target service level yang ditetapkan oleh perusahaan. Pada penelitian ini diberikan usulan perbaikan pada sistem peramalan dan model pemesanan untuk item kritis, yaitu item 90915-TE001 dan 85214-0A010.Untuk mengatasi fluktuasi demand, peneliti mengusulkan adanya safety stock yang ditentukan berdasarkan besarnya fluktuasi demand dan target service level yang ingin dicapai. Dari hasil penelitian didapatkan bahwa model peramalan yang sesuai adalah Holt Exponential Smoothing untuk item 90915-TE001, dan Single Exponential Smoothing untuk item 85214-0A010. Selain itu, perhitungan safety stock dan MIP berdasarkan model usulan, meningkatkan rata – rata aktual service level hingga 99.38% pada sistem heijunka. Kata Kunci: service level, peramalan, pemesanan heijunka Abstract PT X, distributor wich serves the demand of genuine parts in central java and DIY.As a Distributor Company, PT X has two kinds of responsibilities , to customer as the supplier, to always improve the satisfication of customer. One of satisfication of customer is service level. According to company data from january to april 2007, global service level for all items still stay below the service level target which is decided by company.In this research, given correction suggestion in forecasting system and ordering model for critic items, those are item 90915-TE001 and 85214-OA010. For solving the demand fluctuation, researcher suggests for safety stock that is decided by the value of demand fluctuation and service level target will be reached.From the research, obtained that the suitable forecasting model is Holt Exponential Smoothingfor item 90915-TE001, and Single Exponential Smoothing for item 85214-OA010. Beside that, calculation of safety stock and MIP according to suggestion model, improve average actual service level until 99,38% in Heijunka System Keywords: service level, forecasting, order, heijunka
- Subjects :
- Industrial engineering. Management engineering
T55.4-60.8
Subjects
Details
- Language :
- Indonesian
- ISSN :
- 19071434 and 25021516
- Volume :
- 3
- Issue :
- 3
- Database :
- Directory of Open Access Journals
- Journal :
- J@ti Undip: Jurnal Teknik Industri
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.286b8ebf57c04959bddd30e522ccb4bf
- Document Type :
- article
- Full Text :
- https://doi.org/10.12777/jati.3.3.191-202