Theory of constraints. According to TOC principles, an operation is a chain of inter-dependent resources, in which only a few elements – cal-led constraints – control the output of the entire operation.

theory of constraints. An approach to production management which aims to maximise sales revenue less materials (throughput), whilst simultaneously reducing 'inventory' and operational expense. It focuses primarily on factors which act as constraints to this maximisation.

Theory of constraints. Also called constraints management, it is a set of tools that examines the entire system for continuous improvement. The current reality tree, conflict resolution diagram, future reality tree, prerequisite tree and transition tree are the five tools used in its ongoing improvement process.

See Theory of Constraints

Theory of Constraints. A lean management philosophy that stresses removal of constraints to increase throughput while decreasing inventory and operating expenses.

Theory of Computation.

Theory of Constraints. Eliyahu Goldratt describes this in his book, the goal, a model that challenges many traditional accounting and business practices. He makes the case that we often do not know what our true business goal is. One goal every business shares is the need to be profitable. A particular business will have other goals as well. These goals must be well thought out, clearly stated, and communicated to everyone in the organization. Goldratt's procedures focus on three metrics: throughput (the rate at which the system produces income), inventory ( all the money the system invests in things to sell as well as all money tied up in the system), and operating expense (money spent turning inventory into throughput). The constraints that prevent achieving the goals are primarily system restraints. Therefore we must determine what to change, what to change to, and how to cause change. Goldratt describes five sequential steps to remove constraints and progress toward a goal: 1. Identify the system constraint. 2. Decide how to exploit the constraint. 3. Subordinate everything else. 4. Elevate the constraint. 5. Go back to step one.

theory of constraints developed by Eli Goldratt

Theory of constraints. A management philosophy developed by Dr. Eliyahu M. Goldratt that can be viewed as three separate but interrelated areas—logistics, performance measurement, and logical thinking. Logistics include drum-buffer-rope scheduling, buffer management, and VAT analysis. Performance measurement includes throughput, inventory and operating expense, and the five focusing steps. Thinking process tools are important in identifying the root problem (current reality tree), identifying and expanding win-win solutions (evaporating cloud and future reality tree), and developing implementation plans (prerequisite tree and transition tree). Syn: constraint theory. See: constraints management.

Abbreviation for theory of constraints.

Theory of Compliance

Total organic carbon. TOC represents the total amount of organic matter present in the water. The concentrations present in water do not present any risk to health. No significant increase

Total Organic Carbon. A measure of the concentration of organic carbon in water, determined by oxidation of the organic matter into carbon dioxide (CO2). TOC includes all the carbon atoms covalently bonded in organic molecules. Most of the organic carbon in drinking water supplies is dissolved organic carbon, with the remainder referred to as particulate organic carbon. In natural waters, total organic carbon is composed primarily of nonspecific humic materials. Total organic carbon is used as a surrogate measurement for disinfection by-product precursors, although only a small fraction of the organic carbon will react to form these by-products. Quantitatively, total organic carbon is determined by removing interfering inorganic carbon, such as bicarbonate (HCO3–), and oxidizing the organic carbon to carbon dioxide. Typically, the carbon dioxide is then measured with a nondispersive infrared detector.

Total Organic Compound – is a direct measure of the organic, oxidizable, carbon based material in water. TOC is of concern in highly purified water used in electronic applications.

Total Organic Carbon - a measure of organic levels in ultrapure water. High TOC levels have been correlated with lower yields for semiconductors.

Total organic carbon test.

Total Organic Carbon - Organic matter plays a major role in aquatic systems. It affects biogeochemical processes, nutrient cycling, biological availability, chemical transport and interactions. It also has direct implications in the planning of wastewater treatment and drinking water treatment. Organic matter content is typically measured as total organic carbon and dissolved organic carbon, which are essential components of the carbon cycle. (credit referenced link)

Total Organic Carbon. TOC is the concentration of carbon present in oxidizable organic compounds in the water. It is expressed as ppm or ppb carbon.

Total Organic Carbon (water chemistry)

total organic carbon. This is the sum of organic carbon and is a monitoring parameter analyzed in environmental water programs. It is a physical sediment factor which can influence the concentration of other compounds. Represented variations in concentration can be attributable to spatial and temporal variations in sediment type.

Total Organic Carbon (considered the sorption phase for hydrophobic substances such as dioxin-like chemicals in sediments).

Total organic carbon. represents the total organic carbon in a given sample. Determined by oxidation of the organic matter with heat and oxygen or chemical oxidants, followed by the measurement of the H2O liberated with an infared analyser.

Total Ownership Cost

Total Organic Compounds. Gaseous organic compounds, including reactive organic gases and the relatively unreactive organic gases such as methane.

Tactical Operations Center. When a unit is deployed, or on an exercise, this is where the unit is run from. A TOC has more amenities than where things are actually done.

Train operating company. A company which runs passenger or freight trains on Britain's railway network. The trains are often leased and the trackwork belongs to Railtrack.

Traffic Operations Center

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