|
Predetermined Motion Time System
A predetermined motion time system (PMTS) is frequently used to perform Labor Minute Costing in order to set piece-rates, wage-rates and/or incentives in labor (labour) oriented industries by quantifying the amount of time required to perform specific tasks under defined conditions. Today the PMTS is mainly used in work measurement for shorter cycles in labour oriented industries such as apparel and footwear. This topic comes under wider industrial and production engineering. One of such a system is known as "Work Factor" and more popular Methods-time measurement, (MTM) released in 1948 exist today in several variations and used in some commercial applications. New legislation in developed markets following sustainability issues, Living Wage movement and the 2013 disaster in Rana Plaza, Bangladesh have brought labor costing and standards back to the focus of activists and global fashion retailers. Occupational safety and health (OSH, OHS), Ergonomics, Skills development and job s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Industrial And Production Engineering
Industrial and production engineering (IPE) is an interdisciplinary engineering discipline that includes manufacturing technology, engineering sciences, management science, and optimization of complex processes, systems, or organizations. It is concerned with the understanding and application of engineering procedures in manufacturing processes and production methods. Industrial engineering dates back all the way to the industrial revolution, initiated in 1700s by Sir Adam Smith, Henry Ford, Eli Whitney, Frank Gilbreth and Lilian Gilbreth, Henry Gantt, F.W. Taylor, etc. After the 1970s, industrial and production engineering developed worldwide and started to widely use automation and robotics. Industrial and production engineering includes three areas: Mechanical engineering (where the production engineering comes from), industrial engineering, and management science. The objective is to improve efficiency, drive up effectiveness of manufacturing, quality control, and to reduce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toyota Production System
The Toyota Production System (TPS) is an integrated socio-technical system, developed by Toyota, that comprises its management philosophy and practices. The TPS is a management system that organizes manufacturing and logistics for the automobile manufacturer, including interaction with suppliers and customers. The system is a major precursor of the more generic " lean manufacturing". Taiichi Ohno and Eiji Toyoda, Japanese industrial engineers, developed the system between 1948 and 1975. Originally called " just-in-time production", it builds on the approach created by the founder of Toyota, Sakichi Toyoda, his son Kiichiro Toyoda, and the engineer Taiichi Ohno. The principles underlying the TPS are embodied in The Toyota Way. Goals The main objectives of the TPS are to design out overburden ( muri) and inconsistency ( mura), and to eliminate waste ( muda). The most significant effects on process value delivery are achieved by designing a process capable of delivering the require ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Direct Labor Cost
Direct labor cost is a part of wage-bill or payroll that can be specifically and consistently assigned to or associated with the manufacture of a product, a particular work order, or provision of a service. Also, we can say it is the cost of the work done by those workers who actually make the product on the production line. Determination of the direct labor cost *Planning the work to be performed. *Describing the job content of the work, by indicating the skill, knowledge, etc. *Matching the jobs with the employees. Usage The direct labor cost is part of the manufacturing cost. Calculation of direct labor cost In the direct labor cost we need to have the job time and wage we will pay it to the worker to calculate the direct labor cost as in this formulation:- \text = \text \times \text Depending on the context, there are various methods to calculate personnel costs, such as on an hourly or daily basis. Wage The wage is the payment rendered to the worker per hour as a compensa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Takt Time
Takt time, or simply Takt, is a manufacturing term to describe the required product assembly duration that is needed to match the demand. Often confused with cycle time, takt time is a tool used to design work and it measures the average time interval between the start of production of one unit and the start of production of the next unit when items are produced sequentially. For calculations, it is the time to produce parts divided by the number of parts demanded in that time interval. The takt time is based on customer demand; if a process or a production line are unable to produce at takt time, either demand leveling, additional resources, or process re-engineering is needed to ensure on-time delivery. For example, if the customer demand is 10 units per week, then, given a 40-hour workweek and steady flow through the production line, the average duration between production starts should be 4 hours, ideally. This interval is further reduced to account for things like machine do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Production Levelling
Production leveling, also known as production smoothing or – by its Japanese original term – , is a technique for reducing the mura (unevenness) which in turn reduces muda (waste). It was vital to the development of production efficiency in the Toyota Production System and lean manufacturing. The goal is to produce intermediate goods at a constant rate so that further processing may also be carried out at a constant and predictable rate. Where demand is constant, production leveling is easy, but where customer demand fluctuates, two approaches have been adopted: 1) ''demand leveling'' and 2) ''production leveling'' through flexible production. To prevent fluctuations in production, even in outside affiliates, it is important to minimize fluctuation in the final assembly line. Toyota's final assembly line never assembles the same automobile model in a batch. Instead, they level production by assembling a mix of models in each batch and the batches are made as small as possi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Value Stream Mapping
Value-stream mapping, also known as "material- and information-flow mapping", is a lean-management method for analyzing the current state and designing a future state for the series of events that take a product or service from the beginning of the specific process until it reaches the customer. A value stream map is a visual tool that displays all critical steps in a specific process and easily quantifies the time and volume taken at each stage. Value stream maps show the flow of both materials and information as they progress through the process. Whereas a value stream map represents a core business process that adds value to a material product, a value chain diagram shows an overview of all activities within a company. Other business activities may be represented in "value stream diagrams" and/or other kinds of diagram that represent business processes that create and use business data. Purpose The purpose of value-stream mapping is to identify and remove or reduce "waste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Time And Motion Study
A time and motion study (or time-motion study) is a business efficiency technique combining the Time Study work of Frederick Winslow Taylor with the Motion Study work of Frank and Lillian Gilbreth (the same couple as is best known through the biographical 1950 film and book ''Cheaper by the Dozen''). It is a major part of scientific management (Taylorism). After its first introduction, time study developed in the direction of establishing standard times, while motion study evolved into a technique for improving work methods. The two techniques became integrated and refined into a widely accepted method applicable to the improvement and upgrading of work systems. This integrated approach to work system improvement is known as methods engineering and it is applied today to industrial as well as service organizations, including banks, schools and hospitals. Time studies Time study is a direct and continuous observation of a task, using a timekeeping device (e.g., decimal minute sto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fast Fashion
Fast fashion is a term used to describe the clothing industry's business model of replicating recent catwalk trends and high-fashion designs, mass-producing them at a low cost, and bringing them to retail stores quickly, while demand is at its highest. The term ''fast fashion'' is also used generically to describe the products of the fast fashion business model. Fast fashion grew during the late 20th century as manufacturing of clothing became less expensive — the result of more efficient supply chains and new quick response manufacturing methods, and greater reliance on low-cost labor from the apparel manufacturing industries of South, Southeast, and East Asia, where women make up 85-90% of the garment workforce. Labor practices of fast fashion are often exploitative, and due to the gender concentration of the garment industry, women are more vulnerable. Retailers who employ the fast fashion strategy include Primark, H&M, Shein, and Zara, all of which have become large ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methods-time Measurement
Methods-Time Measurement (MTM) is a predetermined motion time system that is used primarily in industrial settings to analyze the methods used to perform any manual operation or task and, as a product of that analysis, set the standard time in which a worker should complete that task. MTM was released in 1948 and today exist in several variations, known as MTM-1, MTM-2, MTM-UAS, MTM-MEK and MTM-SAM. Some MTM standards are obsolete; including MTM-3 and MMMM (4M). History The basic MTM data was developed by H.B. Maynard, JL Schwab and GJ Stegemerten of the Methods Engineering Council during a consultancy assignment at the Westinghouse Brake and Signal Corporation, United States in the 1940s. This data and the application rules for the MTM system were refined, extended, defined, industrially tested and documented as a result of further work in later years. In 1948, Maynard, Stegemerten and Schwab published the book “Methods-Time Measurement” giving full details of the devel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Second
The second (symbol: s) is the unit of time in the International System of Units (SI), historically defined as of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds each (24 × 60 × 60 = 86400). The current and formal definition in the International System of Units ( SI) is more precise:The second ..is defined by taking the fixed numerical value of the caesium frequency, Δ''ν''Cs, the unperturbed ground-state hyperfine transition frequency of the caesium 133 atom, to be when expressed in the unit Hz, which is equal to s−1. This current definition was adopted in 1967 when it became feasible to define the second based on fundamental properties of nature with caesium clocks. Because the speed of Earth's rotation varies and is slowing ever so slightly, a leap second is added at irregular intervals to civil time to keep clocks in sync with Earth's rotation. Uses Analog clocks and watches often ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hour
An hour (symbol: h; also abbreviated hr) is a unit of time conventionally reckoned as of a day and scientifically reckoned between 3,599 and 3,601 seconds, depending on the speed of Earth's rotation. There are 60 minutes in an hour, and 24 hours in a day. The hour was initially established in the ancient Near East as a variable measure of of the night or daytime. Such seasonal, temporal, or unequal hours varied by season and latitude. Equal or equinoctial hours were taken as of the day as measured from noon to noon; the minor seasonal variations of this unit were eventually smoothed by making it of the mean solar day. Since this unit was not constant due to long term variations in the Earth's rotation, the hour was finally separated from the Earth's rotation and defined in terms of the atomic or physical second. In the modern metric system, hours are an accepted unit of time defined as 3,600 atomic seconds. However, on rare occasions an hour may incorporate a posit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
