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Six sigma overview outline
Importance of preventive maintenance in general
Advantages and disadvantages of maintenance
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3.4.4 Maintenance Strategies Evaluation It is important to determine the correct maintenance strategy for production equipment to reduce costs and increase efficiency. In some cases, production equipment requires a combination of maintenance strategies based on the consequences of failures and its modes. The advantages and functioning of different maintenance strategies are explained below: Corrective maintenance: This refers to the maintenance of equipment or replacement of components only when the equipment fails. The equipment is allowed to operate until breaks down. It is also called as reactive maintenance. This maintenance strategy can be viewed as a double-edged sword. Corrective maintenance can be considered for new equipment as …show more content…
The criticality of assets can be determined through historical repair data and the overall efficiency of the machines. The key performance indicators such as mean time between failure rates (MTBF) and mean time to repair (MTTR) will also help in the analysis. The criticality matrix is a suitable tool to evaluate, classify and prioritise an asset. This matrix also includes factors such as the cost of maintenance and costs related to lost production. After criticality analysis, the current maintenance strategy for top ranking assets is evaluated. The assets can be grouped together or individually evaluated. The criticality matrix results can be validated through different methods such as root cause analysis (RCA) or failure mode effect analysis (FMEA), which also provides qualitative analysis to assess reliability. These tools also help to determine the potential causes for failures or other factors which were not considered during criticality matrix …show more content…
It is a structured problem-solving methodology used in Six Sigma improvement projects. It uses many tools to effectively describe and improve the performance of a process. The main purpose of the Six Sigma DMAIC methodology is to improve the processes in a structured manner. In this approach, each phase builds on the previous steps to resolve the problems with unidentified answers. This methodology is mainly used while improving a current process, which has complex problems and high risks associated with it. The disciplined approach of DMAIC, following each and every step in an order, increases the chances of the project being successful. The decisions along the implementation are made based on concrete data. Even though it is an integral part of Six Sigma, it can also be implemented as a standalone quality improvement
Now, let’s recap a little about Six Sigma and how it operates. This set of quality management tools uses data that reduces defects. The methodology steps in Six Sigma are knowns as: define, measure, analyze, improve, and control. This process is known as the DMAIC system. Each step in this process will help everyone improve the quality of any product. These vital steps make Six Sigma a great tool. Six Sigma achievement happens when the process produces less than 3.4 defects per million opportunities. This quality practice is now used in many companies across the globe.
There are many people that benefit from Lean Six Sigma which include mainly customers, suppliers, employees, and also stockholders. Lean Six Sigma is a way for businesses to improve, to reduce waste and to become more successful. In the future, more and more organizations will adopt or practice some of the Lean, Six Sigma, or both in order to stay competitive in today’s market. In some cases, blending both Lean and Six Sigma can be costly and difficult; however the end result can create an organization that focuses on quality, accuracy, and speed to meet the goal which is profitability.
1) Six Sigma should not be viewed as a quality program that is commissioned to reduce defects but as a methodology that helps companies better meet the needs of their business. KM shares this goal.
Even though I have no real experience in software development I know that dealing with software is not easy and can be very frustrating. Six sigma incorporates many tools that help organizations determine their customer requirements. Before reading this article I thought six sigma was just about statistics and improving processes. It is so much more than that. It’s also about managing all given information or data quantitative or not. Six sigma can help with customer requirements and also with understanding processes capability.
Barnard, W., De Feo, J. (2004). Juran Institute’s Six Sigma Breakthrough and Beyond. New York, NY: The McGraw-Hill Companies
Preventive Maintenance Checks and Services (PMCS) means systematic caring, inspecting, and servicing of military equipment to keep it in good condition and to prevent breakdowns. The operator of the vehicle mission is to be sure to perform PMCS each time he/she operate the vehicle. Always do the PMCS in the same order, so it gets to be a habit. Once you've had some practice, you will quickly spot anything wrong.
MAINTENANCE: Keep our station and boats running and looking great. Preventative maintenance, material condition, and house-keeping are the responsibilities of everyone.
The methodology of Lean Six Sigma is the merger of two business tools that includes Lean Manufacturing and Six Sigma. Six Sigma focuses on improving current business processes and performance while Lean Manufacturing focuses on the improvement of the processes of an organization by using highly skilled employees to increase speed and quality. Combining the two methodologies creates an organization that focuses on quality, efficiency and speed to lower operational costs and increase profits. By following the Lean Six Sigma methodology, many companies have attempted to create a lean, waste-free environment ultimately at the expense of the employee and occasionally at the expense of the organization.
The Six Sigma approach was designed by Motorola in 1986. The primary objective of the concept was to develop a tool for tallying the process defects and, as the result, improving business operations. The foundations of the approach are the customer needs, statistical analysis of data and facts, and timely execution. The method promises numerous benefits such as increasing performance and profitability of an organization, improving product or service quality and employee morale, decreasing costs, the growth of market share, the higher level of satisfying customer needs, etc. (Meredith & Shafer, 2013). The primary advantage
The first instance of differing opinions between Maintenance and Kirinyaga is shown when Barbara Eaton asks Koriba about whether the baby had free will or not. She asks, “was that baby you killed given such a choice?”(9). Resnick demonstrates the two differing opinions about whether babies have the freedom to decide or not. Here we see that the women from Maintenance represents the western culture’s belief that humans have the freedom to decide what they want and how they want to act. On the other hand, when Koriba replies back by saying “it was not a baby but a demon” (9) , the author provides the opposing belief when Koriba compares the innocent baby to a devilish being. In other words, the tradition decides for the baby who he or she is;
Poor maintenance of facilities/equipment – this is a major factor that contributes to accidents in the workplace. If the work place is not pr...
Aviation industry deals with more than thousands of people and also spending millions of funds in order to meet the requirements, satisfy the necessities of people and to produce state-of-the-art aircraft. With its objective it is significant to consider the hazards involved and bring out an output with the least extent and under control risks to prevent any loss in terms of life and even profit.
When compared to the physical capital maintenance concept, the financial capital maintenance concept is the better choice for standard setting when distinguishing between a return of capital and a return on capital. The main argument in favor of physical capital maintenance is that it provides information that has better predictive value, confirmatory value, and is more complete. However, due to agency theory, prospect theory, and positive accounting theory, neutrality and completeness under physical capital maintenance would be impaired so gravely that predictive value and confirmatory value become inefficacious. As a result, financial capital maintenance, with its use of historical cost, is able to provide information to decision makers with stronger confirmatory value and predictive value.
As the development of aviation industry grows, more and more aircraft crashes occur. There are many reasons that lead to aircraft crashes, but one of them, is because of improper aircraft maintenance. Why is proper aircraft maintenance so important? Proper aircraft maintenance is critical in order to keep the aircraft can function properly, every aircraft part is in good condition and ensure the safety of pilots and passengers. Proper maintenance has many parts. The most common part is inspections, which pilots do them every day; the main part is overhaul and repair of an aircraft; and maintenance documentation is another important part of aircraft maintenance which improper maintenance documentation has caused many incidents.
Preventive maintenance is the base of the entire maintenance strategy for every pharmaceutical industry. One of the frequent problems that PM programs may confront is to maintain equally every equipment or parts involved in the pharmaceutical manufacturing. A safer path is to apply a risk-based approach that separates each equipment or parts of equipment in terms of their direct contact with product and possible defects on possibly affecting product quality [2]. It is useful to apply a risk-based approach to prioritize and organize the documentation needed. PM activities are more vulnerable to risks in the period of time of parts changes, including scheduled shutdowns or special projects. Complete process documentation and operating procedures, including organizational policies should exist for all maintenance activities [2].