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Flow Diagram
Flow diagram is a collective term for a diagram representing a flow or set of dynamic relationships in a system. The term flow diagram is also used as a synonym for flowchart, and sometimes as a counterpart of the flowchart.Harris. (1999, p. 156) Flow diagrams are used to structure and order a complex system, or to reveal the underlying structure of the elements and their interaction. Overview The term flow diagram is used in theory and practice in different meanings. Most commonly the flow chart and flow diagram are used in an interchangeable way in the meaning of a representation of a process. For example the ''Information Graphics: A Comprehensive Illustrated Reference'' by Harris (1999) gives two separate definitions: :''Flow chart or flow diagram... is a diagram that visually displays interrelated information such as events, steps in a process, functions, etc., in an organized fashion, such as sequentially or chronologically.'' :''Flow diagram sa graphic representa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SUB REACTOR SYSTEM FLOW
Sub is a common abbreviation of words beginning with the prefix "sub-". Sub or SUB may also refer to Places * Juanda International Airport, Surabaya, Indonesia, IATA code SUB Computing and technology * , an HTML tag for subscript * SUB designates a subroutine in some programming languages * SUB, substitute character, ASCII character 26 * SUB, subtraction processor command * .sub (other), several file extensions * Subeditor * Subwoofer loudspeaker Language and printing * Subscript and superscript * Subtitle Entertainment and media * Sub (TV channel) * ''Sub'' (album), a 2000 album by Swiss industrial metal band Apollyon Sun * ''The Sub'', a 2017 American short horror film Other uses * Bottom (BDSM), or "sub" for "submissive" * Seafarers' Union of Burma, or SUB * Submarine * Submarine sandwich * Substitute teacher * Subscription See also * Süß * Substitute (other) Substitute may refer to: Film * ''Substitute'' (film), a 2006 film by Vikash Dhoras ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Data Flow Diagram
A data-flow diagram is a way of representing a flow of data through a process or a system (usually an information system). The DFD also provides information about the outputs and inputs of each entity and the process itself. A data-flow diagram has no control are no decision rules and no loops. Specific operations based on the data can be represented by a flowchart. There are several notations for displaying data-flow diagrams. The notation presented above was described in 1979 by Tom DeMarco as part of structured analysis. For each data flow, at least one of the endpoints (source and / or destination) must exist in a process. The refined representation of a process can be done in another data-flow diagram, which subdivides this process into sub-processes. The data-flow diagram is a tool that is part of structured analysis and data modeling. When using UML, the activity diagram typically takes over the role of the data-flow diagram. A special form of data-flow plan is a site ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Function Model
In systems engineering, software engineering, and computer science, a function model or functional model is a structured representation of the functions ( activities, actions, processes, operations) within the modeled system or subject area.FIPS Publication 183 released of IDEFØ December 1993 by the Computer Systems Laboratory of the National Institute of Standards and Technology (NIST). 
A function model, similar with the activity model or process mode ...
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Flow Graph (other) , a diagram representing a process as boxes connected with arrows
{{Disambiguation ...
Flow graph may refer to: * Flow or rooted graph (graph theory), a graph in which a vertex has been distinguished as the root * Control-flow graph (computer science), a representation of paths through a program during its execution * Flow graph (mathematics), a directed graph linked to a set of linear algebraic or differential equations * Flow network, a directed graph where each edge has a capacity and receives a flow * Signal-flow graph, a directed graph with nodes as system variables and branches as node connections See also * Flow diagram, a diagram representing a flow or set of dynamic relationships in a system * Flowchart A flowchart is a type of diagram that represents a workflow or process. A flowchart can also be defined as a diagrammatic representation of an algorithm, a step-by-step approach to solving a task. The flowchart shows the steps as boxes of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
State Diagram
A state diagram is a type of diagram used in computer science and related fields to describe the behavior of systems. State diagrams require that the system described is composed of a finite number of states; sometimes, this is indeed the case, while at other times this is a reasonable abstraction. Many forms of state diagrams exist, which differ slightly and have different semantics. Overview State diagrams are used to give an abstract description of the behavior of a system. This behavior is analyzed and represented by a series of events that can occur in one or more possible states. Hereby "each diagram usually represents objects of a single class and track the different states of its objects through the system". State diagrams can be used to graphically represent finite-state machines (also called finite automata). This was introduced by Claude Shannon and Warren Weaver in their 1949 book ''The Mathematical Theory of Communication''. Another source is Taylor Booth in hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Signal-flow Graph
A signal-flow graph or signal-flowgraph (SFG), invented by Claude Shannon, but often called a Mason graph after Samuel Jefferson Mason who coined the term, is a specialized flow graph, a directed graph in which nodes represent system variables, and branches (edges, arcs, or arrows) represent functional connections between pairs of nodes. Thus, signal-flow graph theory builds on that of directed graphs (also called digraphs), which includes as well that of oriented graphs. This mathematical theory of digraphs exists, of course, quite apart from its applications. i SFGs are most commonly used to represent signal flow in a physical system and its controller(s), forming a cyber-physical system. Among their other uses are the representation of signal flow in various electronic networks and amplifiers, digital filters, state-variable filters and some other types of analog filters. In nearly all literature, a signal-flow graph is associated with a set of linear equations. His ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sankey Diagram
Sankey diagrams are a type of flow diagram in which the width of the arrows is proportional to the flow rate. Sankey diagrams can also visualize the energy accounts, material flow accounts on a regional or national level, and cost breakdowns. The diagrams are often used in the visualization of material flow analysis. Sankey diagrams emphasize the major transfers or flows within a system. They help locate the most important contributions to a flow. They often show conserved quantities within defined system boundaries. History Sankey diagrams are named after Irish Captain Matthew Henry Phineas Riall Sankey, who used this type of diagram in 1898 in a classic figure (see diagram) showing the energy efficiency of a steam engine. The original charts in black and white displayed just one type of flow (e.g. steam); using colors for different types of flows lets the diagram express additional variables. Over time, it became a standard model used in science and engineering to repr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rapping
Rapping (also rhyming, spitting, emceeing or MCing) is a musical form of vocal delivery that incorporates "rhyme, rhythmic speech, and street vernacular". It is performed or chanted, usually over a backing beat or musical accompaniment. The components of rap include "content" (what is being said), "flow" (rhythm, rhyme), and "delivery" ( cadence, tone). Rap differs from spoken-word poetry in that it is usually performed off-time to musical accompaniment. Rap is a primary ingredient of hip hop music commonly associated with that genre; however, the origins of rap predate hip-hop culture by many years. Precursors to modern rap include the West African griot tradition, Cockney rhyming slang, certain vocal styles of blues, jazz, 1960s African-American poetry and ''Sprechgesang''. The use of rap in popular music originated in the Bronx, New York City in the 1970s, alongside the hip hop genre and cultural movement. Rapping developed from the role of master of ceremonies (MC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Product Flow Diagram
The product flow diagram (PFD) is a representation of the order by which a sequence of products is created according to product-based planning principles. It is related to the product breakdown structure (PBS). The product flow diagram is a prescribed activity of the PRINCE2 project management methodology which mandates the use of product-based planning. Features Some important features of the product flow diagram (PFD) include: * The PFD is a planning aid, not an outcome of planning (like a PERT chart which looks similar), this is a common cause of confusion among the project managers * The PFD should contain all of the products of the product breakdown structure (equivalent to a work breakdown structure) * The PFD should be kept as simple and high-level as possible for it to make sense (if additional detail is required, creating a supplementary, detailed product flow diagram can be useful) * All products should be 'linked into' the product flow diagram, even if it's only to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Process Flow Diagram
A process flow diagram (PFD) is a diagram commonly used in chemical and process engineering to indicate the general flow of plant processes and equipment. The PFD displays the relationship between ''major'' equipment of a plant facility and does not show minor details such as piping details and designations. Another commonly used term for a PFD is ''flowsheet''. Typical content of a process flow diagram Typically, process flow diagrams of a single unit process will include the following: * Process piping * Major equipment items *Connections with other systems * Major bypass and recirculation (recycle) streams * Operational data (temperature, pressure, mass flow rate, density, etc.), often by stream references to a mass balance. * Process stream names Process flow diagrams generally do not include: * Pipe classes or piping line numbers * Instrumentation details * Minor bypass lines * Instrumentation * Controllers like Level Control or Flow Control * Isolation and shutoff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Information Flow Diagram
An information flow diagram (IFD) is a diagram that shows how information is communicated (or "flows") from a ''source'' to a ''receiver'' or ''target'' (e.g. A→C), through some medium. The medium acts as a bridge, a means of transmitting the information. Examples of media include word of mouth, radio, email, etc. The concept of IFD was initially used in radio transmission. The diagrammed system may also include feedback, a reply or response to the signal that was given out. The return paths can be two-way or bi-directional: information can flow back and forth. An IFD can be used to model the information flow throughout an organisation. An IFD shows the relationship between internal information flows within an organisation and external information flows between organisations. It also shows the relationship between the internal departments and sub-systems. An IFD usually uses "blobs" to decompose the system and sub-systems into elemental parts. Lines then indicate how the inform ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stock And Flow
Economics, business, accounting, and related fields often distinguish between quantities that are stocks and those that are flows. These differ in their units of measurement. A ''stock'' is measured at one specific time, and represents a quantity existing at that point in time (say, December 31, 2004), which may have accumulated in the past. A ''flow'' variable is measured over an interval of time. Therefore, a flow would be measured ''per unit of time'' (say a year). Flow is roughly analogous to rate or speed in this sense. For example, U.S. nominal gross domestic product refers to a total number of dollars spent over a time period, such as a year. Therefore, it is a flow variable, and has units of dollars/year. In contrast, the U.S. nominal capital stock is the total value, in dollars, of equipment, buildings, and other real productive assets in the U.S. economy, and has units of dollars. The diagram provides an intuitive illustration of how the ''stock'' of capital currently ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
