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Journal : Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika

IMPLEMENTASI PERAMALAN PRODUKSI DI PT X DENGAN MENGGUNAKAN GREY METHOD Rendiyatna Ferdian; Asep Anwar; Tiaradia Ihsan
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 4 No. 3 (2023): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v4i3.469

Abstract

The stages of a good production process begin with carrying out production planning and forecasting. This stage is carried out to reduce the impact of uncertainty in the future. There are many methods that can be used in forecasting, but there are often obstacles to the lack of data owned to do forecasting. Gray system theory is one of the theories developed to reduce the problem of lack data owned. This research tries to forecast the needs of PT X using the grey method. Based on the results of forecasting using the Grey Method, the method can produce forecasting with a good level of accuracy and is on the criteria of "Qualified" or good enough with an error ratio value of C of 0.36
USULAN PERBAIKAN LAYOUT LANTAI PRODUKSI PT XYZ MENGGUNAKAN METODE ALGORITMA BLOCPLAN DAN ALGORITMA CORELAP Tiaradia Ihsan; Rendiyatna Ferdian; Asep Anwar
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 4 No. 3 (2023): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v4i3.514

Abstract

PT XYZ is a company that engaged in the footwear manufacturing industry. In the production process, one of tool that required is cutting dies to form the desired designs or patterns. The production process that uses cutting dies is carried out in the moldshop section. Cutting dies are made from sheet plates that are cut to size, then processed to form a pattern or design that will be used in the main production section. Several departments were placed not in accordance with the production process flow, causing delays in the delivery of cutting dies. This also causes longer material handling time and there is irregular material flow such as cross material flow and alternating flow which also results in queuing processes. For this problem, it is necessary to design a layout to produce a shorter total distance and better production flow using the BLOCPLAN Algorithm and CORELAP Algorithm methods. From the design results, the proposed layout of the BLOCPLAN Algorithm was obtained which was able to produce a total distance of 2385.5 meters per day, whereas if using the CORELAP Algorithm it was 1514.63 meters per day. Therefore, it is recommended to use the layout from the CORELAP Algorithm calculation so that it can produce an efficiency of 20.60%.