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First Pass Yield
First-pass yield (FPY), also known as throughput yield (TPY), is defined as the number of units coming out of a process divided by the number of units going into that process over a specified period of time. Example Consider the following: You have a process that is divided into four sub-processes: A, B, C and D. Assume that you have 100 units entering process A. To calculate first time yield (FTY) you would: #Calculate the yield (number out of step/number into step) of each step. #Multiply these together. For example: (# units leaving the process as good parts) / (# units put into the process) = FTY *100 units enter A and 90 leave as good parts. The FTY for process A is 90/100 = 0.9000 *90 units go into B and 80 leave as good parts. The FTY for process B is 80/90 = 0.8889 *80 units go into C and 75 leave as good parts. The FTY for C is 75/80 = 0.9375 *75 units go into D and 70 leave as good parts. The FTY for D is 70/75 = 0.9333 The total first time yield is equal to FTYofA ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolled Throughput Yield
Rolled throughput yield (RTY) in production economics is the probability that a process with more than one step will produce a defect free unit. It is the product of yields for each process step of the entire process. For any process, it is ideal for that process to produce its product without defects and without rework. Rolled throughput yield quantifies the cumulative effects of inefficiencies found throughout the process. Rolled throughput yield and rolled throughput yield loss (RTYL) are often used in Six Sigma. See also * Defects per million opportunities *Business process *Process capability *Total quality management Total quality management (TQM) is an organization-wide effort to "install and make a permanent climate where employees continuously improve their ability to provide on-demand products and services that customers will find of particular value." ... * Total productive maintenance References {{Reflist Business terms Production economics Six Sigma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Six Sigma
Six Sigma (6σ) is a set of techniques and tools for process improvement. It was introduced by American engineer Bill Smith while working at Motorola in 1986. Six Sigma strategies seek to improve manufacturing quality by identifying and removing the causes of defects and minimizing variability in manufacturing and business processes. This is done by using empirical and statistical quality management methods and by hiring people who serve as Six Sigma experts. Each Six Sigma project follows a defined methodology and has specific value targets, such as reducing pollution or increasing customer satisfaction. The term ''Six Sigma'' originates from statistical quality control, a reference to the fraction of a normal curve that lies within six standard deviations of the mean, used to represent a defect rate. History Motorola pioneered Six Sigma, setting a "six sigma" goal for its manufacturing business. It registered Six Sigma as a service mark on June 11, 1991 (); on December 28, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Statistical Quality Control
Statistical process control (SPC) or statistical quality control (SQC) is the application of statistical methods to monitor and control the quality of a production process. This helps to ensure that the process operates efficiently, producing more specification-conforming products with less waste scrap. SPC can be applied to any process where the "conforming product" (product meeting specifications) output can be measured. Key tools used in SPC include run charts, control charts, a focus on continuous improvement, and the design of experiments. An example of a process where SPC is applied is manufacturing lines. SPC must be practiced in two phases: the first phase is the initial establishment of the process, and the second phase is the regular production use of the process. In the second phase, a decision of the period to be examined must be made, depending upon the change in 5M&E conditions (Man, Machine, Material, Method, Movement, Environment) and wear rate of parts used in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quality Management
Total quality management, Total Quality management (TQM), ensures that an organization, product, or service consistently performs as intended, as opposed to Quality Management, which focuses on work process and procedure standards. It has four main components: quality planning, quality assurance, quality control, and quality improvement. Customers recognize that quality is an important attribute when choosing and purchasing products and services. Suppliers can recognize that quality is an important differentiator of their offerings, and endeavor to compete on the quality of their products and the service they offer. Thus, quality management is focused both on product and service quality. Advancement In earlier periods, arts and crafts were led by Master craftsman, master craftspeople or artists who supervised studios, trained apprentices, and oversaw the product development process. With the advent of the Industrial Revolution, steam engines, and mass production, the role of crafts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Business Terms
Business is the practice of making one's living or making money by producing or buying and selling products (such as goods and services). It is also "any activity or enterprise entered into for profit." A business entity is not necessarily separate from the owner and the creditors can hold the owner liable for debts the business has acquired except for limited liability company. The taxation system for businesses is different from that of the corporates. A business structure does not allow for corporate tax rates. The proprietor is personally taxed on all income from the business. A distinction is made in law and public offices between the term business and a company (such as a corporation or cooperative). Colloquially, the terms are used interchangeably. Corporations are distinct from sole proprietors and partnerships. Corporations are separate and unique legal entities from their shareholders; as such they provide limited liability for their owners and members. Cor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Statistical Process Control
Statistical process control (SPC) or statistical quality control (SQC) is the application of statistics, statistical methods to monitor and control the quality of a production process. This helps to ensure that the process operates efficiently, producing more specification-conforming products with less waste scrap. SPC can be applied to any process where the "conforming product" (product meeting specifications) output can be measured. Key tools used in SPC include run charts, control charts, a focus on Continuous Improvement Process, continuous improvement, and Design of experiments, the design of experiments. An example of a process where SPC is applied is manufacturing lines. SPC must be practiced in two phases: the first phase is the initial establishment of the process, and the second phase is the regular production use of the process. In the second phase, a decision of the period to be examined must be made, depending upon the change in 5M&E conditions (Man, Machine, Materia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Production Planning
Production planning is the planning of Production (economics), production and manufacturing modules in a company or industry. It utilizes the resource allocation of activities of employees, raw material, materials and production capacity, in order to serve different customers.Fargher, Hugh E., and Richard A. Smith. "Method and system for production planning." U.S. Patent No. 5,586,021. 17 Dec. 1996. Different types of production methods, such as single item manufacturing, batch production, mass production, continuous production etc. have their own type of production planning. Production planning can be combined with production control into production planning and control, or it can be combined with enterprise resource planning. Overview Production planning is the future of production. It can help in efficient manufacturing or setting up of a production site by facilitating required needs. A production plan is made periodically for a specific time period, called the planning ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
