scholarly journals Integrasi Manajemen Perubahan pada Proyek Lean Six Sigma dalam Peningkatan Mutu dan Kinerja Perusahaan

2021 ◽  
Vol 10 (2) ◽  
pp. 113-120
Author(s):  
Ayesha Gilang Prahara ◽  
Catharina Badra Nawangpalupi
Keyword(s):  
Change Management ◽  
Six Sigma ◽  
Lead Time ◽  
Value Added ◽  
Production Quality ◽  
Lean Six Sigma ◽  
Small Enterprise ◽  
Improve Production Quality ◽  
High Level

PT X is a small enterprise producing various types of jute fabric products. As a traditional business, the company still largely rely on the handiness and crafting skills from their workers. Whilst the business competition increases, PT X requires to strengthen the business by improving product quality in an efficient way. Besides high level of defects, PT X has also non-value-added activities in their production resulting in high overtime hours of their workers. Although PT X considers the overtime is acceptable to achieve the production target, there is room for improvement to reduce the defects as well as to shorten the production lead time. This paper aims to tackle the inefficiency and quality of the company. Lean six sigma is proposed to improve the condition and change management is implemented to ensure the commitment and participation of all staff for the success of change. Hence, this paper proposes the combination of change management and lean six sigma to improve production quality, lead time and staff participation. Combining DMAIC methods with change management, a methodology called DMA(C)IC is used with the middle C is for change. The implementation of the integration between change management in lean six sigma has resulted in the reduced number of defects and shorter lead time and the awareness of the workers to improve their working behavior.

scholarly journals PENERAPAN METODE SIX SIGMA DALAM ANALISIS KUALITAS PRODUK (Studi Kasus Produk Batik Handprint Pada PT XYZ di Bali)

2017 ◽  
Vol 6 (2) ◽  
pp. 124
Author(s):  
TRI ALIT TRESNA PUTRA ◽  
I KOMANG GDE SUKARSA ◽  
I GUSTI AYU MADE SRINADI
Keyword(s):  
Quality Control ◽  
Production Process ◽  
Six Sigma ◽  
Production Quality ◽  
Improve Production ◽  
Defect Rate ◽  
Improve Production Quality

The aim of this study was to demonstrate the application of Statistics Quality Control in fierce industries. By observing Batik production process at PT XYZ as a case in this work, we applied Six Sigma Method to analyze defective product and their cause while also measure overall quality goodness. Six Sigma is a method to improve a process and reduce defects in productions into 3.4 defects per million productions. We use handprint batik productions at PT XYZ as a case in this study. The method is involving Define, Measure and Analyze (DMA) phases. By using Six Sigma, it was obtained that the quality of handprint batik are quite good with sigma of 3.105 and defect rate of 54.269 million production (DPMO). There are four defect causes of handprint batik namely: ripped fabric, shallowness, perforation, and mispattern which contribute 41,7%, 35,8%, 15%, 7,5% respectively from overall defects. The main cause of defects is the carelessness of workers in production process. Therefore we need to reduce the carelessness to  improve production quality.

scholarly journals ANALISIS PENGENDALIAN KUALITAS DENGAN MENGGUNAKAN METODE LEAN SIX SIGMA DI PT. XYZ

2021 ◽  
Vol 16 (2) ◽  
pp. 13-24
Author(s):  
Ahmad Fauzi ◽  
Moch Tutuk Safirin
Keyword(s):  
Six Sigma ◽  
Value Added ◽  
Lean Six Sigma ◽  
Value Stream ◽  
Sigma Level ◽  
Big Picture ◽  
Production Output ◽  
Fmea Method ◽  
One Machine

XYZ is a company that produces Medical Devices. One of the products produced is 16x16 hydrophilic sterile gauze. One of the factors that affect the quality of a product is the presence of defects in the product and waste which results in a longer lead time for a product. The investigative stages used in this study are using tools: seven tools, Big Picture Mapping, Value Stream Analysis (VALSAT) and then analyzing the causes of defects using the Ishikawa diagram (fishbone chart) where the output of this study is a proposed improvement using the FMEA method ( Failure Mode Effect and Analysis) to eliminate defects and waste that occur. Based on the research results, it is known that the type of waste identified by the calculation of Value Stream Activity and obtained Value Added with a percentage of 84.4%, Non Value Added by 1.0% and Necessary Non Value Added by 14.5%. From the results of production output in December 2019 to November 2020 amounting to 2,650,200 boxes, the number of defects is 1,316 boxes with an average sigma level of 5.16, while in FMEA it is known that the largest defects are spots with an RPN value of 504 and a suggestion for improvement is to place Experienced operators who have gone through the recruitment and training stages on superior qualifications on one machine according to their skills who understand SOPs and operators are given good comfort in the production process.                                                                                                   Keywords: Lean Six Sigma, Seven Waste, DMAIC, FMEA, kasa steril hidrofil 16x16.

scholarly journals UPAYA PENINGKATAN KUALITAS PELAYANAN JALAN TOL SEMARANG-BAWEN DENGAN INTEGRASI METODE IMPORTANCE PERFORMANCE GAP ANALYSIS, LEAN, DAN SIX SIGMA

2017 ◽  
Vol 12 (2) ◽  
pp. 143
Author(s):  
Diana Puspita Sari ◽  
Ariani Putri Winanda ◽  
Arfan Bakhtiar ◽  
Dyah Ika Rinawati ◽  
Yusuf Widharto
Keyword(s):  
Service Quality ◽  
Six Sigma ◽  
Lead Time ◽  
Gap Analysis ◽  
Value Added ◽  
Value Stream Mapping ◽  
Performance Gap ◽  
Value Stream ◽  
Road Lighting

PT Trans Marga Jateng (TMJ) adalah sebuah perusahaan yang bergerak pada bidang jasa, yaitu mengelola jalan tol Semarang-Bawen. Berdasarkan survey pendahuluan yang dilakukan oleh PT TMJ menunjukkan bahwa kualitas pelayanan PT TMJ masih dianggap kurang memuaskan, sehingga perlu dilakukan penelitian mengenai peningkatan kualitas pelayanan. Kualitas pelayanan dapat diukur dari dua perspektif, yaitu perspektif internal dan perspektif eksternal. Perspektif eksternal dapat diukur dengan metode Importance Performance Gap Analysis (IPGA), sedangkan perspektif internal dapat diukur dengan metode  Lean dan Six Sigma. Sehingga, penelitian ini menggunakan integrasi metode IPGA,  Lean, dan Six Sigma dalam upaya meningkatkan kualitas pelayanan PT TMJ. Berdasarkan hasil penelitian, atribut kualitas pelayanan yang dianggap paling berpengaruh adalah penerangan jalan, kemulusan permukaan jalan, keselamatan mengemudi, dan penanganan kecelakaan. Usulan perbaikan yang diberikan untuk masing-masing atribut adalah penambahan lampu penerangan di titik-titik rawan kecelakaan, pemberian lapisan aspal pada bagian-bagian jalan yang bergelombang, memberikan perhatian khusus terhadap pelaksanaan indikator-indikator keselamatan mengemudi, dan perbaikan value stream pada penanganan kecelakaan. Value stream mapping hasil perbaikan menghasilkan waktu total lead time sebesar 150 menit dan persentase aktivitas value added sebesar 72,6%. AbstractPT Trans Marga Jateng (TMJ) is a company engaged in service sector, which is managing Semarang-Bawen toll road. The result of preliminary surveyconducted by PT TMJ showed that service quality of PT TMJ is still unsatisfactory, so it is necessary to do research on improving service quality. Service quality can be measured from two perspectives, i.e., internal perspective and external perspective. The external perspective can be measured with Importance Performance Gap Analysis (IPGA) method, while the internal perspective can be measured with Lean and Six Sigma method. Thus, this study will use the integration method of IPGA, lean, and six sigma in effort to improve service quality of PT TMJ. Based on the research result, service quality attributes considered the most influential is road lighting, road surface smoothness, driving safety, and accident handling. Suggested improvements for each attribute are road lighting installation at vulnerable points of accidents,asphalt layer installation on bumpy roads, paying particular attention to the implementation of safety driving indicator, and improving value stream of accident handling. Based on future state value stream mapping, total lead time is 150 minutes and value added activity percentage is 72,6%. 

Improving university facilities services using Lean Six Sigma: a case study

2015 ◽  
Vol 13 (1) ◽  
pp. 70-84 ◽  
Author(s):  
Mohsen F. Mohamed Isa ◽  
Mumtaz Usmen
Keyword(s):  
Six Sigma ◽  
Value Added ◽  
Lean Six Sigma ◽  
Content Type ◽  
General Improvement ◽  
Six Sigma Methodology ◽  
Construction Services ◽  
Design And Construction

Purpose – The purpose of this paper is to present a case study on the use of Lean Six Sigma principles and tools to study the improvement in design and construction services at a university. The quality of facilities services at universities has been criticized by users calling for improvement. Design/methodology/approach – Quality of facilities services at universities has been criticized by users calling for improvement. The purpose of this paper is to present a case study on using Lean Six Sigma principles and tools to study improving design and construction services at a university. Findings – It was found that non-value-added general improvement review form (GIRF) process steps involving revisions and rework for the design and construction result in time delays, cost increases and quality deficiencies and render cost estimates unreliable; these are unnecessary and should be minimized or eliminated. It was additionally noted that administrative reviews and approvals embedded in GIRF processes slow down work flow, leading to similar problems. Because such steps may be needed for institutional reasons precluding elimination, it was recommended that efforts be directed toward reducing their durations and costs. Overall, the Lean Six Sigma methodology proved to be successful for the intended purpose. Originality/value – Although universities are aware of their facilities services’ quality issues and have been addressing them, no published information is available on how to systematically evaluate and improve such services to increase customer satisfaction. This paper aims at filling this gap.

scholarly journals ANALISIS NON VALUE ADDING ACTIVITY DAN DEFECT DENGAN PENDEKATAN LEAN SIX SIGMA DI PT. INDUSTRI KEMASAN SEMEN GRESIK - TUBAN

2018 ◽  
Vol 7 (2) ◽  
pp. 24
Author(s):  
MT Safirin
Keyword(s):  
Six Sigma ◽  
Lead Time ◽  
Value Added ◽  
Lean Six Sigma

PT. Industri Kemasan Semen Gresik ( IKSG ) adalah perusahaan yang memproduksikemasan semen jenis jahit. Dalam proses produksnya masih ditemui adanya aktivitasyang tidak bernilai tambah (non value adding activity) atau pemborosan (waste).Beberapa pemborosan gtersebut antara lain adalah waiting delay, motion daninspection, serta lead time yang panjang, sehingga dapat mempengaruhi kepuasankonsumen. Oleh karena itu, diperlukan perbaikan dan peningkatan kualitas secara terusmenerus pada proses-proses tersebut sehingga mampu dihasilkan produk yangberkualitas sesuai dengan spesifikasi atau kebutuhan pelanggan.Untuk memecahkan masalah tersebut, digunakan Metode Lean Six sigma yaitu suatumetode yang bertujuan untuk mereduksi non value added activity dan mengurangijumlah defect. Dari hasil penelitian dapat disimpulkan : a) Cacat yang paling dominanadalah cacat jahitan tidak sempurna. b) Hasil perbaikan lean produksi mampumengurangi: Pemborosan (waste) berkurang dari sebesar 669 menit menjadi 513,45menit, Production lead time berkurang dari sebesar 533 menit (9,28 jam) menjadi499 menit ( 8,32 jam) dan Prosentase Non Value Adding Activity berkurang dari91,26% menjadi 88,90% dan c). Kapabilitas proses pada kemasan semen jenis jahitsebesar 4,50.

scholarly journals Validation of Sustainability Benchmarking Tool in the Context of Value-Added Wood Products Manufacturing Activities

2019 ◽  
Vol 11 (8) ◽  
pp. 2361 ◽  
Author(s):  
Cagatay Tasdemir ◽  
Rado Gazo
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Six Sigma ◽  
Value Added ◽  
Primary Objective ◽  
Lean Six Sigma ◽  
Wood Products ◽  
Bottom Line ◽  
Sustainability Performance ◽  
Base Points

The primary objective of this study was to validate the sustainability benchmarking tool (SBT) framework proposed by the authors in a previous study. The SBT framework is focused on benchmarking triple bottom line (TBL) sustainability through exhaustive use of lean, six-sigma, and life cycle assessment (LCA). During the validation, sustainability performance of a value-added wood products’ production line was assessed and improved through deployment of the SBT framework. Strengths and weaknesses of the system were identified within the scope of the bronze frontier maturity level of the framework and tackled through a six-step analytical and quantitative reasoning methodology. The secondary objective of the study was to document how value-added wood products industries can take advantage of natural properties of wood to become frontiers of sustainability innovation. In the end, true sustainability performance of the target facility was improved by 2.37 base points, while economic and environmental performance was increased from being a system weakness to achieving an acceptable index score benchmark of 8.41 and system strength level of 9.31, respectively. The social sustainability score increased by 2.02 base points as a function of a better gender bias ratio. The financial performance of the system improved from a 33% loss to 46.23% profit in the post-improvement state. Reductions in CO2 emissions (55.16%), energy consumption (50.31%), solid waste generation (72.03%), non-value-added-time (89.30%), and cost performance (64.77%) were other significant achievements of the study. In the end, the SBT framework was successfully validated at the facility level, and the target facility evolved into a leaner, cleaner, and more responsible version of itself. This study empirically documents how synergies between lean, sustainability, six-sigma and life cycle assessment concepts outweigh their divergences and demonstrates the viability of the SBT framework.

scholarly journals Lean Six-Sigma: the means to healing an ailing NHS?

2018 ◽  
Vol 35 (9) ◽  
pp. 1976-1988 ◽  
Author(s):  
John Bancroft ◽  
Krish Saha ◽  
Di Li ◽  
Gabor Lukacs ◽  
Xavier Pierron
Keyword(s):  
Patient Care ◽  
Six Sigma ◽  
Positive Impact ◽  
Lean Six Sigma ◽  
Content Type ◽  
Staffing Levels ◽  
Accident And Emergency ◽  
Timely Fashion ◽  
Performance Challenges

Purpose The purpose of this paper is to examine England’s Accident and Emergency (A&E) arm of the National Health Service (NHS). It considers the positive impact that Lean has had and Six-Sigma can have in A&E departments to improve the quality and reliability of the service offered, in an area that is facing performance challenges. Design/methodology/approach Independent variables average monthly temperature data (degrees Celsius) obtained from the Met Office and weekly A&E data, patient volume is analysed alongside the dependent variable, the percentage of patients seen in 4 h or less. Findings The model produced a robust positive impact when Lean Six-Sigma is adopted, increasing the likelihood of A&E dependents meeting their performance objective to see and treat patients in 4 h or less. Research limitations/implications Further variables such as staffing levels, A&E admission type should be considered in future studies. Additionally, it would add further clarity to analyse hospitals and trusts individually, to gauge which are struggling. Practical implications Should the NHS further its understanding and adoption of Lean Six-Sigma, it is believed this could have significant improvements in productivity, patient care and cost reduction. Social implications Productivity improvements will allow the NHS to do more with an equal amount of funding, therefore improving capacity and patient care. Originality/value Through observing A&E and its ability to treat patients in a timely fashion it is clear the NHS is struggling to meet its performance objectives, the recommendation of Six-Sigma in A&E should improve the reliability and quality of care offered to patients.

Lean Six Sigma leadership in higher education institutions

2017 ◽  
Vol 66 (5) ◽  
pp. 638-650 ◽  
Author(s):  
Jing Lu ◽  
Chad Laux ◽  
Jiju Antony
Keyword(s):  
Higher Education ◽  
Six Sigma ◽  
Higher Education Institutions ◽  
Lean Six Sigma ◽  
Quality Of Education ◽  
Leadership Model ◽  
Content Type ◽  
Wide Range ◽  
Leadership Framework

Purpose The purpose of this paper is to critically evaluate whether a Lean Six Sigma (LSS) leadership model could be effectively utilized to resolve efficiency and effective issues like rising costs, quality of education, graduation and retention rates encountered in higher education institutions (HEIs) in the modern era. Design/methodology/approach The authors systematically reviewed the literature on key concepts of LSS and leadership in HEIs in to develop a theoretical model using an inductive theory-building approach in accordance with the exploratory nature of the study. Findings The results of the study proposed a conceptual LSS leadership framework, which provides a basis for testing of LSS leadership representations in HEIs. The results suggest that LSS leadership has advantages for HEI to overcome currents issues and challenges. Research limitations/implications This research is a theoretical study based on the existing literature that identified characteristics that may be adopted in higher education. The proposed LSS leadership framework is based upon leadership, statistical thinking, continuous change and improvement. This model is based upon service and the concepts of adaptive, rather than technical work, of leaders in higher education. Practical implications The proposed LSS leadership framework brings new aspects and perspectives of leadership in HEIs. LSS leadership model has its practical meaning in providing a fundamental base for HEIs to overcome challenges, fulfill missions, and sustain improvements. Social implications HEIs are a foundation for principles of democracy, equality and diversity. HEIs have been a path for citizens but HEIs are facing challenges that are reducing the ability of individuals to improve themselves. Leadership of HEI needs to incorporate new principles to adapt to a changing society. Originality/value LSS project leaders have achieved improved bottom line results and customer satisfaction in a wide range of industries, but LSS application in the HEIs remains to be explored. This paper proposes an effective LSS leadership model, which can help improve the quality of education, reduce non-value added costs and enhance operational efficiency of HEIs.

Real-Time Process Quality Monitoring Using Wireless Sensor-Embedded Rotary Tools for Fastening Operations

2007 ◽  
Author(s):  
Deepak T. Mohan ◽  
Jeffrey Birt ◽  
Can Saygin ◽  
Jaganathan Sarangapani
Keyword(s):  
Real Time ◽  
Lead Time ◽  
Value Added ◽  
Cost Effective ◽  
Base Station ◽  
Embedded Sensors ◽  
Optical Encoder ◽  
Effective Manner ◽  
Rotary Type

Fastening operations are extensively used in the aerospace industry and constitute for more than a quarter of the total cost. Inspection of fasteners is another factor that adds cost and complexity to the overall process. Inspection is usually carried out on a sampling-basis as a stand-alone process after the fastening process is completed. Lack of capability to inspect all fasteners in a cost effective manner and the need to remove non-value added activities, such as inspection by itself, in order to reduce the manufacturing lead time have been the motivation behind this study. This paper presents a novel diagnostics scheme based on Mahalanobis-Taguchi System (MTS) for monitoring the quality of rotary-type fastening operations in real-time. This approach encompasses (1) integrating a torque sensor, a pressure sensor, and an optical encoder on a hand-held rotary-type fastening tool; (2) obtaining process parameters via the embedded sensors and generating process signatures in real-time; and (3) detecting anomalies on the tool using a wireless mote that communicates the decision with a base station. The anomalies investigated in this study are the grip length variations as under grip and normal grip, and presence of re-used fasteners. The proposed scheme has been implemented on prototype rotary tool for bolt-nut type of fasteners and tested under a variety of experimental settings. The experimental results have shown that the proposed approach is successful, with an accuracy of over 95% in detecting grip lengths of fasteners in real-time during the process.

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