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Journal : Jurnal Bisnisman : Riset Bisnis dan Manajemen

Analisis Pengendalian Kualitas Produk Menggunakan Metode Statistical Process Control (SPC) Pada PT Difa Kreasi Ningrum, Harini Fajar
Jurnal Bisnisman : Riset Bisnis dan Manajemen Vol 1 No 2 (2019): Jurnal Bisnisman : Riset Bisnis dan Manajemen
Publisher : Universitas Nusa Putra

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Abstract

PT Difa Kreasi is a manufacturing company engaged in printing and packaging. One of the carton box packaging products produced is the angle corner. Angle corner making is carried out by the production division using a jigsaw and bending machines. Operation in this process requires a high degree of accuracy, so it is deemed necessary to implement quality control so that quality control is maintained and avoids the occurrence of fatal production defects. The author is interested in conducting research related to quality control to reduce product defects using the Statistical Process Control (SPC) method. From the study held, it was concluded that the amount of angle corner production during April 2016 was 76,151 pcs with a total of 4,402 pcs or 1.77% defects, with the most dominant type of damage being the wrong size of 46.1%, imperfect shape of 30.3%, and rough cuts of 23.6%. Based on the results of the control chart p (p-chart), it can be seen that there are still product defects that are outside the control limits, the point is fluctuating and irregular. Therefore it is necessary to make improvements regularly to achieve maximum results, for example, increasing the ability of operators by conducting training, doing preventive maintenance on machines, and others.
Analisis Prediksi Penjualan Produk PT. Joenoes Ikamulya Menggunakan 4 Metode Peramalan Time Series Wiharja, Andry Fernandus; Ningrum, Harini Fajar
Jurnal Bisnisman : Riset Bisnis dan Manajemen Vol 2 No 1 (2020): Jurnal Bisnisman : Riset Bisnis dan Manajemen
Publisher : Universitas Nusa Putra

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Abstract

The need of information is important in the strict of business competition. The quality and result of data information which have been processed affects the strategy and the succeeded in the future. Joenoes Ikamulya is a company concerns in selling product and it use the selling data to be transformed into useful information for the company itself. By counting the forecasting with several forecasting time series method and the error in each method, it is expected that the company could have information and the best result in the forecasting. The results from prediction system were made by 4 forecasting time series method, they are Naïve Approach Method, Single Moving Average Method (with n = 1, 2, 3, 4, 5), Weighted Moving Average Method, Exponential Smoothing Method (with α = 0.1, 0.5, 0.9), and Trend Projection Method. The result from forecasting chosen from Weight Moving Average method is used as selling product prediction D Boday Wash and Evany, however, the result from Trend Projection method is used as selling profuct prediction for Aganol, Ligent, dan Porstex.