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CV Berkah Kecambah Tauge Aling is a company engaged in the field of food or vegetable bean sprouts made from green beans. In the production of CV Berkah Kecambah Tauge Aling there was a product defect in January 2023 which occurred, namely the result of the defect rate which was known to have the highest number of defects in the yellow color defect of 1818 packages, with a defect percentage of 58.3%. Then the Bad Smell defects with a total of 879 defects, a percentage of defects obtained by 28.2%, the type of defective packaging torn with a total of 423 defects, a percentage of defects of 13.6%. it is known that the diagram (p-chart) with the type of product defect still has 13 points exceeding the upper control limit or UCL and there are 12 points exceeding the lower control limit or LCL with a proportion of 0.148. Judging from the results of DPMO calculations and Sigma Levels, an average DPMO of 49619 is obtained, so that if there is a product defect of 49619 out of 1,000,000 opportunities in the Sprouts production process at CV. The Blessing of Aling Bean Sprouts. In the FMEA diagram to find out the factors and RPN values that result in product defects including human factors, machines, materials, methods, and the environment, the results of the FMEA analysis cause the biggest defects, namely yellowing defects with an RPN value of 810.

PT Kusuma Mulia Plasindo Infitex is a company engaged in the manufacturing sector that produces polypropylene and HD (Hight density Polyethylene) plastic products. The problem that occurred at PT Kusuma Mulia Plasindo Infitex was that the number of defective products on HD plastic products of 98,327 kg contained 4,194 kg of defective products. The purpose of this study is to determine the factors that cause defects and suggestions for improvements to minimize defective products. This study uses the six sigma method which is useful for finding the root causes of problems that are adjusted to the characteristics of the data they have. The 5 stages of six sigma are DMAIC(define, measure, analyze, improve, control) and kaizen is the Five M-Checklist. So from the results of data processing, the value is obtained in the form of DPMO 8393.048 and a sigma value of 2.49. Proposed improvements include providing training in plastic welding, providing additional 5-10 minute breaks and supervision while working. Perform routine machine maintenance every month and cleaning every day. Adding ventilation and blowers in the production room. Carry out the production process according to the existing SOP at the company, especially in mixing materials according to the SOP for raw materials that have been made by the company.

Penelitian ini bertujuan untuk melakukan upaya efisiensi pada proses pengemasan produk bandeng vacuum spesial di PT Bandeng Juwana menggunakan metode six sigma menggunakan indikator nilai sigma dan DPMO (defect per million opportunity). Penelitian ini menggunakan Ishikawa diagram, FMEA (failure mode & effect analysis), & AHP (analytical hierarchy process). Terdapat 7 jenis defect yang teridentifikasi yaitu defect loss vacuum, patah anatomi, kelunakan, size, daging rontok, dan over fat. Berdasarkan prinsip pareto defect loss vacuum dan patah anatomi dipilih untuk dilakukan improvement dengan jumlah defect 88,04% dari total defect. Berdasarkan hasil penilaian FMEA, RPN terbesar yaitu tidak ada standar jarak sealer RPN 42 dan SOP pengerjaan ikan lengket pada kertas alas RPN 90. Alternatif solusi yang dipilih menggunakan metode AHP yaitu membuat SOP pengerjaan ikan lengket pada kertas alas. Jika alternatif solusi diterapkan maka terdapat peningkatan nilai sigma dari 3,7 menjadi 3,82, dan penurunan nilai DPMO dari 13.588,96 menjadi 10.066,81.

The quality of hospital services will affect patient satisfaction and also their loyalty in using these facilities and the rapid development of health services currently requires hospital managers to run their business well. in the hospital. This study uses the method of literature review (literature review) with search engines used in literature searches including Google Scholar and Research gate with the keywords Service Quality Improvement, Lean Six Sigma, Hospitals. The resulting articles were selected based on publications published between 2018 and 2023. The results showed that the application of lean six sigma in hospitals in improving the quality of their services can be carried out through the DMAIC (Define, Measure, Analyze, Improve, Control) approach. The conclusions of this study indicate that the application of lean six sigma can reduce difficulties, increase speed, and separate activities that have added value or value added from activities that have no added value or non-value added in hospitals, such as improving service quality by setting priorities by according to the highest gap required by the patient.

PT. Kali Jaya Putra is a manufacturing company that focuses on the production of wood floors. One of the products produced is solid flooring. In a series of production processes, product defects are still found up to 7.5% of total production, defects that often occur such as cracks, pinholes, roughness, and also twists which certainly affect product quality. The research conducted aims to determine the percentage of defective products, the causes of defects and the resulting impacts or effects, and to provide recommendations for improvements to minimize the percentage of defects in solid flooring products at PT Kali Jaya Putra. The method used is Six Sigma and Failure Mode and Effect Analysis (FMEA). The results of this study are that the most dominating defects are crack (53.75%), followed by pinhole defects (36.77%), twist (8.62%), and roughness (0.85%). The causes of defects in products are caused by several factors such as humans, machines, methods, materials, and the environment. Based on FMEA, it is known that the cause of the defect with the highest RPN is 384, namely operator negligence in material sorting. As for recommendations for improvement that can be given, namely conducting training on the grading of raw materials in the hope of minimizing operator errors in sorting raw materials.

Quality control is one of the obstacles experienced by PT. Wahana Kasih Mulia on CV. KKN. Quality control is an important thing that must be done by companies to minimize defective products. To be able to analyze product defects, researchers use the six sigma model, by formulating the Define, Measure, Analyze, Improve, Control (DMAIC) stages. The purpose of this study was to determine the level of quality control using the DMAIC method with the Six Sigma model applied to manufacturing companies. The results showed that from the measurement of the number of Omiland brand baby mattress products in the January-October 2021 period, it was found that defective products came from three main causes of disability. The distribution data of the number of product quality characteristics and company performance are at the sigma level of 3.50 with a DPMO value of 27,082.275. This shows that the company has not been able to meet process quality standards. Based on this research, the recommendations for improvement given are that the company needs to provide periodic training to employees, perform maintenance on machines, apply a clearer and more detailed Standard Operating Procedure (SOP), conduct tighter supervision of newly arrived raw materials and the company needs to place quality control at every stage of the production process.