scholarly journals Investigation of Wasteful Activities Using Lean Methodology: In Perspective of Kazakhstan’s Construction Industry

Buildings ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 113
Author(s):  
Md Aslam Hossain ◽  
Assel Bissenova ◽  
Jong Ryeol Kim
Keyword(s):  
Construction Industry ◽  
Value Stream Mapping ◽  
Construction Productivity ◽  
Value Stream ◽  
Survey Results ◽  
Lean Tools ◽  
The Impact ◽  
Lean Methods

Like many other countries, the presence of wasteful activities is very common in Kazakhstan’s construction industry. This severely affects the productivity of construction processes. Lean methodology maximizes the value of a process by minimizing wasteful or non-value adding (NVA) activities. This study aims to explore and quantify the impact NVA items on construction productivity. Several observations were made for construction processes in Astana, Kazakhstan to investigate and quantify various types of wasteful activities. Moreover, a survey was conducted to examine the general understanding of wasteful activities and Lean methods within the construction industry in Kazakhstan. In terms of wasteful activities, a similarity was found between the observed construction processes and survey results. Furthermore, apart from the commonly found seven types of wasteful activities, some other sources of waste, such as “preparation” and “break”, were found from the observations. Finally, wasteful activities were mapped with commonly used Lean tools, as found in the literature, so that productivity can be improved by minimizing NVA activities. From the mapping and the survey results, value stream mapping (VSM) was found to be the most effective Lean tool, since it facilitates increased visualization.

Optimization of Process Flow in an Assembly Line of Manufacturing Unit through Lean Tools Execution

2018 ◽  
Vol 38 ◽  
pp. 133-143 ◽  
Author(s):  
S. Nallusamy ◽  
V. Saravanan
Keyword(s):  
Lead Time ◽  
Manufacturing Industry ◽  
Assembly Line ◽  
Value Added ◽  
Value Stream Mapping ◽  
Lead Times ◽  
Productivity Improvement ◽  
Value Stream ◽  
Lean Tools ◽  
Lean Methods

The main aim of this study is to achieve the maximum productivity in an assembly line of a valve manufacturing industry through the implementation of different lean tools to minimize the production time. The existing manufacturing data were collected and interpret the information’s for identifying the gaps for productivity improvement. For obtaining the production line performance we shall introduce a solution after finding the problemswhich affects the lead time. In this research, an attempt was made to introduce a new fixture with appropriate lean methods by focusing on value stream mapping, kaizen etc to eliminate different kinds of lead times consuming phases in the overall process. Designing a fixture for the process is also done in Kaizen, in order to exclude the sub operations. After execution of various lean tools the total cycle time was reduced about 10.49 minutes and the productivity was improved about 20% by eliminating all those non value added activities in the operations to meet the customer demand.

Lean Solutions in Batch Manufacturing Process with Applicability in Bumpers Production

2016 ◽  
Vol 834 ◽  
pp. 205-210
Author(s):  
Elena Loredana Terzea ◽  
Antonia Cristina Barascu ◽  
Iulian Razvan Soare
Keyword(s):  
Automotive Industry ◽  
Food Processing ◽  
Lead Time ◽  
Batch Processes ◽  
Value Stream Mapping ◽  
Value Stream ◽  
Industry Sector ◽  
Current Value ◽  
Lean Methods

Batch processes includes paint manufacturing, food processing, pharmaceutical industry, etc. The paper focuses on the process of paint manufacturing. The main contribution is the design of the current value stream mapping, very useful to understand the causes of waste and lead-time. This paper points out the necessity of applying lean methods within automotive industry, sector of bumpers painting and assembly, based on a real case-study.

scholarly journals From Lean Manufacturing to Lean Construction: How Principles, Tools, and Techniques Evolved

2021 ◽  
Author(s):  
Sevilay Demirkesen
Keyword(s):  
Construction Industry ◽  
Automotive Industry ◽  
Lean Manufacturing ◽  
Traditional Approach ◽  
Lean Construction ◽  
Work Practices ◽  
Lean Tools ◽  
Low Efficiency ◽  
Tools And Techniques ◽  
Lean Methods

Lean manufacturing first emerged in the automotive industry. However, low productivity and low efficiency in production are major problems for the majority of industries relying on a heavy workforce. Being one of these, the construction industry suffers from low productivity rates along with inefficient work practices. To prevent those, the industry has shifted its focus from the traditional approach to a more innovative one, which is called Lean construction. Lean construction aims to maximize value while minimizing waste. Therefore, it intends to create safer, smoother, and more efficient processes to eliminate waste. This chapter focuses on Lean construction and highlights the generic Lean tools and techniques practiced in the construction industry indicating its historical journey from Lean manufacturing. The chapter aims to raise awareness towards the efficiency of Lean methods in the construction industry with respect to practices observed in manufacturing.

scholarly journals Lean thinking to improving access to cancer patients in a Public General Hospital

2015 ◽  
Vol 1 (1) ◽  
pp. 1-8
Author(s):  
Carlos Frederico Pinto ◽  
Stela Maris Coelho ◽  
Evelin Araujo Marotta ◽  
Sheila Vianna Reis ◽  
Robisom Damasceno Calado ◽  
...  
Keyword(s):  
Value Stream Mapping ◽  
Lean Thinking ◽  
Process Redesign ◽  
Cancer Centers ◽  
Value Stream ◽  
Unit Capacity ◽  
Case Study Report ◽  
Lean Methods ◽  
Unit Performance

Unbalanced treatment scheduling and overcrowding is a common problem for cancer centers in Brazil, with huge access restrictions due to system inefficiencies and poor assistance design. The purpose of this report is to show how lean thinking can be applied to healthcare by using lean methods and production leveling. The case study / report presented was adopted in order to describe the approach, techniques and findings of this project, as part of a lean initiative. Lean Value Stream Mapping tools and leveling tools improved unit performance by increasing unit capacity freeing treatment slots by leveling and decrease of waiting time for cancer treatment .The process redesign also eliminated unnecessary movement and overtime.

Implementation of Lean Tools in an Automotive Industry for Productivity Enhancement - A Case Study

2017 ◽  
Vol 29 ◽  
pp. 175-185 ◽  
Author(s):  
S. Nallusamy ◽  
M.A. Adil Ahamed
Keyword(s):  
Automotive Industry ◽  
Manufacturing Industry ◽  
Value Added ◽  
Value Stream Mapping ◽  
Lean Principles ◽  
Value Stream ◽  
Whole Process ◽  
Lean Tools ◽  
Cycle Efficiency

Value stream mapping has the reputation of uncovering waste in manufacturing, production and business process. This helps in identifying and removing or streaming value added steps and eliminating non value added steps. In this study the process was analyzed to find an opportunity to drastically reduce the number of actions and to simplify the same. By reducing waste the proportion of value adding time increases in the whole process and the process throughput speed could also be increased. This makes the redesigned process more effective and more efficient. The reengineered process was flow charted in its future state with process steps and information flows re-engineering, simplified and economized. The current layout was analysed to identify and eliminate the non value added activities through lean tools like 5S, VSM and line balancing in a manufacturing industry. From the observed results, it was concluded that the non value added time could be reduced by about 13% while the process cycle efficiency could be increased by about 10%. Virtual simulation was conducted to verify and validate the existing situation as well as to propose the results and the effectiveness of lean principles in a systematic manner with the help of ARENA.

Empirical assessment of the future adequacy of value stream mapping in manufacturing industries

2018 ◽  
Vol 29 (5) ◽  
pp. 886-906 ◽  
Author(s):  
Andreas Lugert ◽  
Aglaya Batz ◽  
Herwig Winkler
Keyword(s):  
Industry 4.0 ◽  
Manufacturing Industry ◽  
Point Of View ◽  
Current Status ◽  
Value Stream Mapping ◽  
Content Type ◽  
Empirical Survey ◽  
Value Stream ◽  
Research Activities ◽  
The Impact

Purpose Value stream mapping (VSM) is very common in the manufacturing industry to enhance transparency and support improvements within the production process. The purpose of this paper is to evaluate the current status of the method from the user’s point of view and addresses its future sustainability in the context of the ongoing digitalization. Design/methodology/approach An empirical survey with 170 participants from different branches was conducted. The web-based questionnaire covers the topics Lean Management, respectively, VSM, Industry 4.0, the integration of both approaches as well as a possible need for action to modify the VSM. Results are analyzed in a quantitative way. Findings Benefits and shortcomings of VSM are already confirmed by previous publications. The serious challenge is the lack of flexibility of the method. In general users appreciate a combination of Lean methods and solutions of Industry 4.0. Moreover 92 percent of the participating experts request further development of the VSM using digitalization to compensate weaknesses. Research limitations/implications The findings are based only on Lean expert’s opinion. Over 95 percent of the participants are from Europe however most of them are from Germany. Although the results are adequate an international expansion of the survey would be advisable in order to distinguish local differences and similarities. In future work researchers need to further develop VSM to overcome the identified gaps. Practical implications Results of the study indicate the viewpoint of experts within different branches. This enables users to undertake a self-assessment regarding their own VSM-estimation. Originality/value This paper provides a current evaluation of the VSM from an exploratory perspective. The impact of global trends and new opportunities facilitated by digitalization are considered. Shortcomings and fields of actions become clear. Based on that necessity further research activities can be designed.

scholarly journals APLICAÇÃO DO MFV E CARACTERIZAÇÃO DAS ATIVIDADES DE FLUXO DO PROCESSO DE EXECUÇÃO DE ALVENARIA CONVENCIONAL

2017 ◽  
Vol 13 (2) ◽  
Author(s):  
Tatiana Gondim do Amaral ◽  
Fabiana Barbosa de Resende ◽  
Carlos Augusto Bouhid de Camargo Filho
Keyword(s):  
Residential Building ◽  
Value Stream Mapping ◽  
Construction Company ◽  
Value Stream ◽  
Productive Activities ◽  
Future Production ◽  
Concrete Blocks ◽  
The Impact ◽  
The City

RESUMO: O Mapeamento de Fluxo de Valor (MFV) resgata a transparência dos processos à gerência de produção, possibilitando a eliminação das atividades que não agregam valor e otimiza a conversão. O artigo aplica o MFV ao processo de execução de alvenaria de vedação e identifica quais são as perdas e falhas no processo. A pesquisa realizada em uma empresa construtora goiana é classificada como estudo de caso, com abordagens qualitativas e quantitativas. Foram caracterizadas as atividades de fluxo e elaborou-se um MFV atual e futuro do processo produtivo de alvenaria convencional utilizando blocos de concreto sem função estrutural em um edifício residencial. Como resultado foi possível caracterizar as atividades e quantificar o impacto das atividades improdutivas e auxiliares do processo. Como principal contribuição foi possível identificar quais são as perdas e falhas no processo, propondo melhorias, a fim de reduzir a parcela de atividades improdutivas, otimizar as atividades auxiliares e aumentar a parcela das atividades produtivas. ABSTRACT: The Value Stream Mapping (VSM) rescues the transparency of processes to manage production, enabling the elimination of activities that do not add value and optimize conversion. This paper applies the MFV to seal masonry process and identifies what are the losses and failures in the process. The research carried out in construction company of the city of Goiânia is classified as a case study, with qualitative and quantitative approaches. The flow of activities were characterized and elaborated a MFV current and future production of conventional masonry process using non-structural concrete blocks in a residential building. As results, it was possible to characterize the activities and quantify the impact of unproductive activities and process aids. The main contribution was to identify the losses and failures in the process, proposing improvements in order to reduce the number of unproductive activities, optimize auxiliary activities and increase the share of productive activities.

scholarly journals A Value Stream Approach For Greening The IT Department

2012 ◽  
Vol 16 (2) ◽  
pp. 125 ◽  
Author(s):  
Mohammad Dadashzadeh Dadashzadeh ◽  
T.J. Wharton
Keyword(s):  
Information Technology ◽  
New Technologies ◽  
Value Stream Mapping ◽  
Functional Area ◽  
Technology Infrastructure ◽  
Information Technology Infrastructure ◽  
Value Stream ◽  
A Value ◽  
It Department ◽  
The Impact

In this paper, we consider the application of Green Value Stream Mapping for greening the information technology functional area of organizations. We advocate the use of Information Technology Infrastructure Library (ITIL) processes to consider value stream maps for both the manufacturing side of the IT department as well as its service delivery arm. In addition, we present steps to be taken by the IT department to eliminate waste in each of seven green waste areas and consider the impact of new technologies for greening the IT department.

scholarly journals Six Sigma as a method of improving the quality of service process

2018 ◽  
Vol 19 (19) ◽  
pp. 10-15 ◽  
Author(s):  
Kamila Kowalik
Keyword(s):  
Six Sigma ◽  
Service Process ◽  
Value Stream Mapping ◽  
Pareto Chart ◽  
Value Stream ◽  
Sigma Level ◽  
Fishbone Diagram ◽  
Mapping Process ◽  
The Impact

Abstract The objective of the analysis conducted and described in this paper has been to present the practical application of the Six Sigma method based on the DMAIC cycle in improving the quality of the service process. The first part of the article contains the theoretical framework of six sigma and the issue of using its tools in the aspect of services. Afterwards, there has been calculated the initial sigma value which indicated the need for improvement. Measurement phase has been developed by the value stream mapping, process FMEA and customer survey which results have been analyzed in Pareto chart and fishbone diagram. Improve phase includes the Impact&Effort Matrix and target sigma level that can be achieved as a result of failures reducing and service quality improvement.

scholarly journals Cancer Clinic Redesign: Opportunities for Resource Optimization

2021 ◽  
Author(s):  
Michael Fung-Kee-Fung ◽  
Rachel S. Ozer ◽  
Bill Davies ◽  
Stephanie Pick ◽  
Kate Duke ◽  
...  
Keyword(s):  
High Performance ◽  
Interdisciplinary Teams ◽  
Value Stream Mapping ◽  
Budget Deficits ◽  
Statistical Process ◽  
Value Stream ◽  
Learning Health System ◽  
Disease Site ◽  
Resource Deployment ◽  
The Impact

Ambulatory cancer centers face fluctuating patient demand and deploy specialized personnel who have variable availability. This undermines operational stability through misalignment of re-sources to patient needs, resulting in overscheduled clinics, high rebooking rates, budget deficits, and wait times exceeding provincial targets. We describe how deploying a Learning Health System framework led to operational improvements within the entire ambulatory center. Known methods of value stream mapping, operations research and statistical process control were applied to achieve organizational high performance that is data-informed, agile and adaptive. Caseload management by disease site emerged as an essential construct that incorporates disease site teams into adaptive, reliable care units, clinically and operationally. This supported clus-tering interdisciplinary teams around groups of patients with similar attributes, while allowing for quarterly recalibration. Systematic efforts were made in the negotiation required to im-plement changes that impacted physicians, nurses, clerks, and administrators. Feedback mecha-nisms were created with learnings curated and disseminated by a core team. The change aligned financial expenditures to the regional demand for specialized services and smoothed clinical operations across 5 weekdays and 2 centers. The impact was predictable, optimized expenditures, increased efficiencies across human and physical resource deployment and improved disease site collaboration in patient care.

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