the actor or system. Messages will often appear at the top or bottom of a system sequence diagram ...Multiple issues refimprove December 2009 context August 2009 In software engineering , a system sequence diagram SSD is a sequence diagram that shows, for a particular scenario of a use case , the events that external actors generate, their order, and possible inter system events. ref http www.cse.lehigh.edu glennb oose ppt 06SystemSequenceDiagrams.ppt System Sequence Diagrams ref File SsdExample.jpg thumb right Overview System sequence diagrams are visual summaries of the individual use cases. All software system systems are treated as a black box the diagram places emphasis on events that cross the system boundary from actors to systems. A system sequence diagram should be done for the main success scenario of the use case , and frequent or complex alternative scenarios. A system sequence diagram should specify and show the following External actors Messages methods invoked by these actors Return values if any associated with previous messages Indication of any loops or iteration area Reading a system sequence diagram Professionals, in developing a project, often use system sequence diagrams to illustrate how certain tasks are done between users and the system. These tasks may include repetitive, simple, or complex tasks. The purpose is to illustrate the use case in a visual format. In order to construct a system sequence diagram, you need to be familiar with the unified modeling language UML . These models show the logic behind the actors people who affect the system and the system in performing the task. Reading a sequence diagram begins at the top with the actor s or the system s which is located at the top of the page . Under each actor or system there are long dotted line called lifelines, which are attached to them. Actions are performed with lines that extend between ... are performed in the system. References Reflist http www.agilemodeling.com artifacts sequenceDiagram.htm ... more details
Image NDE Context Diagram.jpg thumb 320px Example of a System context diagram. ref http projects.osd.noaa.gov .... ref A System Context Diagram SCD in software engineering and systems engineering is a diagram that represents the actors outside a system that could interact with that system . ref name KoSw03 This diagram is the highest level view of a system . It is similar to a Block diagram . SCDs show a system, often software system software based, as a whole and its Input output input s and output s from to external factors. Overview System Context Diagrams are diagram s used in systems design to represent the more important external factors that interact with the system at hand. This type of diagram according to Kossiakoff 2003 usually pictures the system at the center, with no details of its interior structure, surrounded by all its interacting systems, environment and activities. The objective of a system context diagram is to focus attention on external factors and events that should be considered in developing a complete set of system requirements and constraints . ref name KoSw03 Alexander Kossiakoff, William N. Sweet 2003 . Systems Engineering Principles and Practices p. 413. ref System ... actors and system or systems and systems. Alternatives of the system context diagram are Image Greater ... reflist DEFAULTSORT System Context Diagram Category Diagrams Category Systems analysis Category Software ... a system and other actors with which the system is designed to interface. System context diagrams can be helpful in understanding the context which the system will be part of. Context diagrams are used ... Actors labeled boxes one in the center representing the system, and around it multiple boxes for each external actor Relationships labeled lines between the entities and system For example, customer ... to convey meaning. Decision trees and data storage are represented in system flow diagrams. A context diagram can also list the classifications of the external entities as one of a set of simple ... more details
processes studied in Systems biology System context diagramSystem structure Systematic layout planning ... flowchart representing the decision process to add a new article to Wikipedia. A diagram is a 2D geometric ... surface. The word graphics graph is sometimes used as a synonym for diagram. Overview In science ... 240 6 ref The essences of a diagram can be seen as ref name LEB 03 a form of visual Content format ... is determined by whether or not the diagram is the simplest and most fitting solution to a problem ... publisher Bowker location New York year 1984 isbn 0 8352 1894 5 ref Main diagram types There are at least ... gallery perrow 5 widths 80 heights 80 File Tree Example.png Network topology Tree tree diagram File Neural network.svg network diagram File LampFlowchart.svg flowchart File Set intersection.svg Venn diagram File Alphagraphen.png existential graph gallery Chart like diagram techniques, which display ... train train diagram File Gear pump exploded.png exploded view File Usagraphmap.svg Population density ... Three dimensional Three dimensional diagram gallery Many of these types of diagrams are commonly generated using diagramming software . Thousands of diagram techniques exist. Some more examples follow. Specific diagram types col begin col 2 A&ndash D A Activity diagram used in Unified Modeling Language UML and SysML B Bachman diagram Booch method Booch used in software engineering Block diagram Block Definition Diagram BDD used in SysML OBASHI Business & IT Diagram B&IT used in business and IT modelling C Cartogram Diagram category theory Category theory diagrams Cause and effect diagram Circuit diagram Class diagram from Unified Modeling Language UML Communication diagram Collaboration diagram from Unified Modeling Language UML 1.x Communication diagram from Unified Modeling Language UML 2.0 Commutative diagram Component diagram from Unified Modeling Language UML Composite structure diagram from Unified Modeling Language UML Concept map Constellation diagram Context diagram Control ... more details
commons Flow diagram Flow diagram may refer to Alluvial diagram , highlights and summarizes the significant structural changes in networks Flowchart , schematic representation of a process which can give a step by step solution to a given problem. Control flow diagram , a diagram to describe the control flow of a business process, process or program Flow map , in cartography, a mix of maps and flow charts that show the movement of objects from one location to another Functional flow block diagram , in systems engineering Data flow diagram , a graphical representation of the flow of data through an information system Process flow diagram , in Operations, a graphical representation of a process Sankey diagram , where line width represents magnitude Signal flow graph , in mathematics, a graphical means of showing the relations among the variables of a set of linear algebraic relations State diagram , a representation of a finite state machine disambig de Flussdiagramm ... more details
File Kommunikations diagramm 5.png thumb 320px Example of a Communication diagram. UML diagram types A communication diagram in the Unified Modeling Language UML 2.0, is a simplified version of the UML 1.x collaboration diagram. ref name Fowler2004 citation last Fowler first Martin author link Martin Fowler year 2004 title UML distilled a brief guide to the standard object modeling language edition 3 publisher Addison Wesley isbn 9780321193681 page 131 ref UML has four types of interaction diagrams Sequence diagram Communication diagram Interaction overview diagram UML Timing Diagram Timing diagram A Communication diagram models the interactions between objects or parts in terms of sequenced messages. Communication diagrams represent a combination of information taken from Class diagram Class , Sequence diagram Sequence , and Use case diagram Use Case Diagrams describing both the static structure and dynamic behavior of a system. However, communication diagrams use the free form arrangement of objects and links as used in Object diagrams. In order to maintain the ordering of messages in such a free form diagram, messages are labeled with a chronological number and placed near the link the message is sent over. Reading a communication diagram involves starting at message 1.0, and following the messages from object to object. Communication diagrams show a lot of the same information as sequence diagrams, but because of how the information is presented, some of it is easier to find in one diagram than the other. Communication diagrams show which elements each one interacts with better, but sequence diagrams show the order in which the interactions take place more clearly. References reflist External links Commons category UML Communication diagrams http www.uml diagrams.org ... Diagram lt Bendradarbiavimo diagrama pl Diagram komunikacji pt Diagrama de colabora o ru sq Collaboration diagrami sk Diagram komunik cie tr leti im diyagram ... more details
18 september 2008. ref br Gallery Image PC Architecture.png Computer architecture diagram of a PC Image IEEE 802.15.4 cluster tree.png Computer network diagram Image WorldWideWebAroundWikipedia.png Internet diagram Image NDE Context Diagram.jpg System context diagram Gallery br In computer ... diagram s emphasize what things must be in the system being modeled. UML encounters here the Class ...A Cluster diagram or clustering diagram is a general type of diagram , which represents some kind of cluster .... ref The cluster diagram figures a cluster, such as a network diagram figures a computer network network , a flow diagram a process or movement of objects, and a tree diagram an abstract tree . But all these diagrams can be considered interconnected A network diagram can be seen as a special orderly arranged kind of cluster diagram. A cluster diagram is a Mesh networking mesh kind of network diagram. A wikt flow diagram flow diagram can be seen as a wikt line line type of network diagram, and a tree diagram a Tree and hypertree networks tree type of network diagram. Types of cluster diagrams Specific types of cluster diagrams are br Gallery Image Skyscrapercompare.svg Comparison diagram of sky scraper Image M3 color magnitude diagram it.jpg Astronomic cluster diagram of the Messier 3 globular cluster Image Biositemap iTools NCBC.png Biositemap diagram Image EvaporacaoDeNuvem.png Cluster chart in brainstorming Gallery br In architecture a comparison diagram is sometimes called a cluster diagram. ref Illustration called http www.skyscrapernews.com diagram city.php City of London Skyscraper Cluster Diagram at skyscrapernews.com. Retrieved 18 september 2008. Comment This illustration depicts a comparison diagram , but yet is called a cluster diagram . ref In astronomy diagrams of star ... called cloud diagram . They can be considered are a type of non linear graphic organizer that can help to systematize the generation of ideas based upon a central topic. Using this type of diagram ... more details
File Object diagram.png thumb 320px Example of a Object diagram. UML diagram types An object diagram in the Unified Modeling Language UML , is a diagram that shows a complete or partial view of the structure of a modeled system at a specific time. An Object diagram focuses on some particular Set computer science set of Object computer science object Instance programming instances and Attribute computing attributes , and the links between the instances. A Correlation correlated set of object diagrams provides insight into how an arbitrary view of a system is expected to evolve over time. Object diagrams are more concrete than class diagram s, and are often used to provide examples, or act as test ... on an object diagram. Object diagram topics Instance specifications Each object and link on an object diagram is represented by an InstanceSpecification . This can show an object s classifier e.g. ... . Object diagram example Image Object Diagram Initial.png thumb right 400px Initially, when n ... of the Fibonacci sequence . In the first UML object diagram on the right, the instance in the leftmost ..., a role, and slots, but these are not shown here. The diagram also includes three named links, shown as lines. Links are instances of an association. Image Object Diagram 2.png thumb right 300px After the first iteration, when n 3, and f n 2 1, and f n 1 1, then f n 1 1 2. In the second diagram, at a slightly ... Object Diagram 1.png thumb right 280px After several more iterations, when n 7, and f n 2 5, and f n 1 8, then f n 5 8 13. In the last object diagram, a still later snapshot, the same three objects ... other diagram type, such as on a class diagram . An object instance may be called an instance specification ... symbol a diamond may also appear on an object diagram. References Refimprove date February ... Object Diagram Category Unified Modeling Language diagrams uml stub de Objektdiagramm es Diagrama de objetos fr Diagramme d objets it Object Diagram pl Diagram obiekt w pt Diagrama de objetos ... more details
Image Windows 2000 architecture.png thumb An example block diagram, showing the Microsoft Windows 2000 operating system architecture. Block diagram is a diagram of a system , in which the principal parts ... Vocabulary . Term block diagram . retrieved 31 July 2008. ref They are heavily used in the engineering ... flow diagram s. The block diagram is typically used for a higher level, less detailed description .... Contrast this with the schematic diagram and Integrated circuit layout layout diagram used in the electrical engineering world, where the schematic diagram shows the details of each electrical component and the layout diagram shows the details of physical construction. Because block diagrams are a visual language for describing actions in a complex system, it is possible to formalize ... diagram is one of five programming languages defined in part 3 of the IEC 61131 see IEC 61131 3 standard ... system with strict rules for how diagrams are to be built. Directed lines are used to connect input ... left to right and top to bottom. Usage examples As an example, a block diagram of a radio is not expected to show each and every wire and dial and switch, but the schematic diagram is. The schematic diagram of a radio does not show the width of each wire in the printed circuit board , but the layout diagram does. To make an analogy to the map making world, a block diagram is similar to a highway ... begin as a very high level block diagram, becoming more and more detailed block diagrams as the design ... be easily implemented at which point the block diagram is also a schematic diagram . This is known ... shapes are often used in the diagram to aid interpretation and clarify meaning of the process or model ... similarity between the block diagram and what is called Systems Biology Graphical Notation . As it is there is use made in systems biology of the block diagram technique harnessed by control engineering ... where the latter itself is a an application of control theory .this diagram is describes total information ... more details
UML diagram types Image CheckEmail.png thumb 250px right Example of a UML 2 diagram A sequence diagram in a Unified Modeling Language UML is a kind of interaction diagram that shows how processes operate with one another and in what order. It is a construct of a Message Sequence Chart . A sequence diagram shows object interactions arranged in time sequence. It depicts the objects and classes involved in the scenario and the sequence of messages exchanged between the objects needed to carry out the functionality of the scenario. Sequence diagrams typically are associated with use case realizations in the Logical View of the system under development. Sequence diagrams are sometimes called event diagrams, event scenarios, and Timing diagram Unified Modeling Language timing diagram s. ref OBM 2005 . http georgewbush whitehouse.archives.gov omb egov documents CRM.PDF FEA Consolidated Reference Model Document . May 2005. p.91. ref Overview A sequence diagram shows, as parallel vertical lines lifelines , different processes or objects that live simultaneously, and, as horizontal arrows, the messages ... runtime scenarios in a graphical manner. Diagram building blocks If the lifeline is that of an object .... A message sent from outside the diagram can be represented by a message originating from a filled in circle found message in UML or from a border of the sequence diagram gate in UML . UML 2 ... A free Sequence Diagram web based tool By WebSequenceDiagrams.com http www.ckwnc.com ckwnc Web based UML Sequence Diagram creation tool References references UML DEFAULTSORT Sequence Diagram Category Unified Modeling Language diagrams id sequence diagram ca Diagrama de seq ncia de Sequenzdiagramm es Diagrama de secuencia fr Diagramme de s quence hi Sequence diagram it Sequence Diagram he lt Sekos diagrama ja pl Diagram interakcji pt Diagrama de sequ ncia ru sk Sekven n diagram fi Sekvenssikaavio ta uk ... more details
mathematicians. Other mathematical diagrams Cremona diagram De Finetti diagram Root system Dynkin ...About general diagrams in mathematics diagrams in the category theoretical sense Diagram category theory ... Mathematical diagrams are diagram s in the field of mathematics , and diagrams using mathematics such as chart ... Working with diagrams at LearningSpace. ref Specific types of mathematical diagrams Argand diagram Image Complex number illustration.svg thumb 120px Argand diagram. A complex number can be visually represented as a pair of numbers forming a vector on a diagram called an Argand diagram The complex plane ... as a rotation. Image Butterfly FFT.png thumb 120px left Butterfly diagram Butterfly diagram In the context of fast Fourier transform algorithms, a Butterfly diagram butterfly is a portion of the computation ... of the data flow diagram in the radix 2 case, as described below. The same structure can also be found ... diagram show a data flow diagram connecting the inputs x left to the outputs y that depend on them right for a butterfly step of a radix 2 Cooley Tukey FFT. This diagram resembles a butterfly as in the Morpho ... theorem.png thumb 120px Commutative diagram. Commutative diagram In mathematics, and especially in category theory a commutative diagram is a diagram of objects, also known as vertices, and morphisms, also known as arrows or edges, such that when selecting two objects any directed path through the diagram ... that equations play in algebra. Image Hasse diagram of powerset of 3.svg thumb left 120px Hasse diagram. Hasse diagrams A Hasse diagram is a simple picture of a finite partially ordered set , forming ... relation covers x, or y is an immediate successor of x. In a Hasse diagram, it is required that the curves be drawn so that each meets exactly two vertices its two endpoints. Any such diagram given that the vertices ... 01.svg right thumb 120px Knot diagram. Knot diagrams In Knot theory a useful way to visualise and manipulate ... knot. This is often done by creating a break in the strand going underneath. If by following the diagram ... more details
A wiring diagram is a simplified conventional pictorial representation of an electrical circuit. It shows the components of the circuit as simplified shapes, and the power and signal connections between the devices. A wiring diagram usually gives more information about the relative position and arrangement of devices and terminals on the devices, to help in building the device. This is unlike a schematic diagram where the arrangement of the components interconnections on the diagram does not correspond to their physical locations in the finished device. A pictorial diagram would show more detail of the physical appearance, whereas a wiring diagram uses a more symbolic notation to emphasize interconnections over physical appearance. File Lespaulwiringdiagram.gif thumb right A wiring diagram for parts of an electric guitar, showing semi pictorial representation of devices arranged in roughly the same locations they would have in the guitar. A wiring diagram is used to troubleshoot problems and to make sure that all the connections have been made and that everything is present. File WPEVStartRunWires.png thumb right An automotive wiring diagram, showing useful information such as crimp connection locations and wire colors. These details may not be so easily found on a more schematic drawing. Architectural wiring diagrams Architectural wiring diagrams show the approximate locations and interconnections of receptacles, lighting, and permanent electrical services in a building. Interconnecting wire routes may be shown approximately, where particular receptacles or fixtures must be on a common circuit. File Ex wiring plan.svg thumb right Architectural style wiring diagram, with lamps ... diagram s. The electrical symbols not only show where something is to be installed, but also what ... to the public electrical supply system. Wiring diagrams will also include panel schedules for circuit ... television or other special services. See also Electrical wiring Circuit diagram References Electrical ... more details
A Jones diagram is a type of Cartesian coordinate system Cartesian graph developed by Lloyd A. Jones in the 1940s, where each axis represents a different Variable mathematics variable . In a Jones diagram axes represent different quantities, unlike in a Cartesian graph clarifyme reason I have no idea what this is trying to say. The axes in Cartesian graphs obviously represent different quantities, such as time and distance, pressure and volume, or whatever it might be date October 2011 where the axes represent positive or negative intensities of the same quantity. The Jones diagram therefore represents four variables. Each quadrant shares the vertical axis with its horizontal neighbor, and the horizontal axis with the vertical neighbor. For example, the top left quadrant shares its vertical axis with the top right quadrant, and the horizontal axis with the bottom left quadrant. The overall system response is in Cartesian coordinate system Cartesian coordinates in two dimensions quadrant I the variables that contribute to it are in quadrants II through IV. Jones diagrams in photography Image Jones Diagram US6484631Fig1.gif thumb 300px FIG. 1 from U.S. Patent 6,484,631. br a graphical illustration of a Jones Diagram for calibrating user specified tone reproduction curve TRC A common application of Jones diagrams is in photography , specifically in displaying sensitivity to light with what are also called Tonal Reproduction Curve tone reproduction diagrams . These diagrams are used in the design of photographic systems photographic film film , photographic paper paper , etc. to determine ... each quadrant separately. Jones s original diagram used eleven quadrants to show all the elements of his photographic system. See also Cobweb plot similar diagram technique References Walls, H. J. & Attridge ... that a viewer would see looking at the finished photograph. The Jones diagram concept of variables ... diagram Example of a CRT Jones diagram US patent reference number 5371537 title Method and apparatus ... more details
in a system. An activity diagram shows the overall flow of control. Construction Activity diagrams ... of workflow in a system. Now with the advent of robust activity diagram implementations, activity ...oneref date February 2012 Image Activity conducting.svg thumb upright 2 UML 1.x Activity diagram for a guided brainstorming mental process process UML diagram types Activity diagrams are graphical representations of workflow s of stepwise activities and actions ref http highered.mcgraw hill.com sites ... in UML 2.x Applications File MESI protocol activity diagram.png thumb right An activity Diagram ... diagram has been extended to indicate flows among steps that convey physical matter e.g., gasoline or energy e.g., torque, pressure . Additional changes allow the diagram to better support continuous ... state machine diagram, in which states can be used to represent activities namely the state .... This mapping of activity diagram features to state diagram were formalized in UML 1.x, leaving activity ... behavior within a work flow. Despite the small advantages of using UML 1.x activity diagram over .... Activity diagrams and state diagram had similar abilities to express Concurrency computer ... diagram capabilities. or date February 2012 With UML 2.x, the foundation of activity diagram changed ... Notation Control flow graph Data flow diagram Event driven process chain List of UML tools Pseudocode State diagram References reflist External links commons category Activity diagrams http www.omg.org ... diagrams.html UML 2 Activity Diagrams UML DEFAULTSORT Activity Diagram Category Unified Modeling Language diagrams Category Systems Modeling Language cs Diagram aktivit de Aktivit tsdiagramm es Diagrama de actividades fr Diagramme d activit it Activity diagram lt Veiklos diagrama nl Activiteitendiagram ja pl Diagram czynno ci pt Diagrama de atividade ru sq Diagrami i aktivitetit sk Diagram aktiv t fi Aktiviteettikaavio tr Faaliyet diyagram uk ... more details
File Randolph diagram disjunction.svg thumb 250px Randolph diagram that represents the logical statement math P or Q math Logical disjunction disjunction . A Randolph diagram R diagram is a simple way ... indicates falsity or exclusion. Using this system, one can represent any combination of sets or logical statements using intersecting lines. Though Venn diagram Venn diagrams are more commonly used to represent ... between a Venn diagram and R diagram for 5 sets or logical statements File Venn5.svg 300px Venn s construction for 5 sets File Randolph diagram n5.svg 260px A Randolph diagram for five sets History ... W. S. McCulloch , a neurophysiologist and Randolph s contemporary. Randolph modified McCulloch s system ... or sets, namely subdividing each section of the R diagram with a new diagonal line for each new element ... sloping line while q is represented by a downward sloping line . A dot in the diagram above ... diagrams for p and q are shown below, respectively File R diagram p.svg 100px File Randolph diagram ... of the four spaces. The R diagram for r is shown below File R diagram r.svg 150px This method can be extended for any number of truth values File Randolph diagram subdivisions.svg 600px Randolph diagram ... F 5 F T T 6 F T F 7 F F T 8 F F F File Randolph diagram numbers.svg 200px File Randolph diagram truthvalues.svg ... Name Symbols R Diagram Truth Table Negation Negation not , File Randolph diagram negation.svg 75px ... diagram conjunction.svg 75px class wikitable style text align center p q p q T T T T F F F T F F F F Logical disjunction Disjunction or File Randolph diagram disjunction.svg 75px class wikitable ... if...then math rightarrow math , math Rightarrow math , math supset math File Randolph diagram implication.svg ... math , math math File Randolph diagram bicondition.svg 75px class wikitable style text align center ..., the result is an R diagram that can be converted back into a simpler logical expression. For example ... using R diagrams as follows math math File Randolph diagram q.svg 40px math leftrightarrow math ... more details
Image MJO 5 day running mean through 1 Oct 2006.png thumb right A Hovm ller diagram of 5 day the running mean of outgoing longwave radiation showing the Madden Julian oscillation . Time increases from top to bottom in the figure, so contours that are oriented from upper left to lower right depict objects moving from west to east. A Hovm ller diagram is a commonly used way of Graph of a function plotting Meteorology meteorological data to highlight the role of wave s. The Cartesian coordinate system axes of a Hovm ller diagram are typically longitude or latitude abscissa or x axis and time ordinate or y axis with the value of some Field physics field represented through color or shading. Hovm ller diagrams are also used to plot the time evolution of vertical profiles of scalar quantities such as temperature , density , or concentrations of constituents in the atmosphere or ocean . In that case time is plotted along the abscissa and vertical position depth, height, pressure along the ordinate. The diagram was invented by Ernest Aabo Hovm ller 1912 2008 , a Danish people Danish meteorologist, in a paper of 1949 ref Citation first1 Ernest last1 Hovm ller year 1949 title The Trough and Ridge Diagram periodical Tellus volume 1 issue 2 pages 62 66 url http onlinelibrary.wiley.com doi 10.1111 j.2153 3490.1949.tb01260.x pdf ref . References Reflist 2 See also Tropical wave External links http locust.mmm.ucar.edu episodes episodes paper technote.html Toc516370405 An example Hovm ller diagram showing rainfall Category Basic meteorological concepts and phenomena nl Hovm llerdiagram pl Diagram Hovm llera ... more details
In mathematics , particularly in dynamical systems , a bifurcation diagram shows the possible long term values equilibria fixed points or periodic orbits of a system as a function of a Bifurcation theory bifurcation parameter in the system. It is usual to represent stable solutions with a solid line and unstable solutions with a dotted line. Bifurcations in 1D discrete dynamical systems Logistic map See also Dynamical systems List of chaotic maps Image LogisticMap BifurcationDiagram.png 300px thumb right Bifurcation diagram of the logistic map Image diagram bifurkacji anim small.gif 300px thumb right Animation showing the formation of bifurcation diagram. Image Circle map bifurcation.jpeg thumb right Bifurcation diagram of the circle map . Black regions correspond to Arnold tongues . An example is the bifurcation diagram of the logistic map math x n 1 rx n 1 x n . , math The bifurcation parameter r is shown on the horizontal axis of the plot and the vertical axis shows the possible long term population values of the logistic function. Only the stable solutions are shown here, there are many other unstable solutions which are not shown in this diagram. The bifurcation diagram nicely shows the forking of the possible periods of stable orbits from 1 to 2 to 4 to 8 etc. Each of these bifurcation points is a period doubling bifurcation . The ratio of the lengths of successive intervals between values of r for which bifurcation occurs convergent series converges to the first Feigenbaum constant . Real quadratic map See also Complex quadratic polynomial The map is math x n 1 x n 2 c math . Symmetry breaking in bifurcation sets Image Asymbif.gif 300px thumb right Symmetry breaking ... bifurcation. In a dynamical system such as math ddot x f x mu epsilon g x 0 math , which is structurally stable when math mu neq 0 math , if a bifurcation diagram is plotted, treating math mu math ... of bifurcation diagram References Paul Glendinning, Stability, Instability and Chaos , Cambridge University ... more details
File Policy Admin Component Diagram.PNG thumb 420px Component Diagram of an Insurance Policy Administration System UML diagram types In the Unified Modeling Language , a component diagram depicts how component UML components are wired together to form larger components and or software system s. They are used to illustrate the structure of arbitrarily complex systems. Overview Components are wired together by using an assembly connector to connect the required interface computing interface of one component with the provided interface of another component. This illustrates the service consumer service provider relationship between the two components. An assembly connector is a connector between two components that defines that one component provides the services that another component requires. An assembly connector is a connector that is defined from a required interface or port to a provided interface or port. ref name OMG V2.1.2 http www.omg.org spec UML 2.1.2 Superstructure PDF OMG Unified Modeling Language UML , Superstructure, V2.1.2 , p.154. ref When using a component diagram to show the internal structure of a component, the provided and required interfaces of the encompassing component can delegate to the corresponding interfaces of the contained components. A delegation connector is a connector that links the external contract of a component as specified by its ports to the internal realization of that behavior by the component s parts. ref name OMG V2.1.2 The example above illustrates what a typical Insurance policy administration system might look like. Each of the components depicted in the above diagram may have other component diagrams illustrating their internal ... by Scott W. Ambler http www.agilemodeling.com style componentDiagram.htm UML 2 Component Diagram ... Diagrams UML DEFAULTSORT Component Diagram Category Unified Modeling Language diagrams Category ... Diagram komponent w pt Diagrama de componentes ru sk Diagram komponentov uk ... more details
Timing Diagram may refer to Digital timing diagram Timing diagram Unified Modeling Language disambig Long comment to avoid being listed on short pages ... more details
File Bachman diagram.jpg thumb 360px Illustration of set type using a Bachman diagram. Bachman diagrams are diagram s which are used to design the data using a network or relational logical model, separating the data model from the way the data is stored in the system. The model is named after database pioneer Charles Bachman , and mostly used in computer software design . A Bachman diagram is another name for a data structure diagram . ref http www.irs.gov irm part2 irm 02 005 013.html IRS Resources . Part 2. Information Technology, Chapter 5. Systems Development, Section 13. Database Design Techniques and Deliverables. Retrieved 02 July 2009. ref In a relational model a relation is the cohesion of attributes that are fully and not transitive functional dependent of every key in that relation. The coupling between the relations is based on accordant attributes. For every relation a rectangle has to be drawn and every coupling is illustrated by a line that connects the relations. On the edge of each line arrows indicate the cardinality. We have 1 to n, 1 to 1 and n to n. The latter has to be avoided and must be replaced by two 1 to n couplings. See also Entity relationship model References reflist Category Data modeling diagrams ja ... more details
Orphan date February 2009 The Williot diagram is a graphical method to obtain an approximate value for displacement of a structure which submitted to a certain load. The method consists of, from a graph mathematics graph representation of a structural system , representing the structure s fixed vertex graph theory vertices as a single, fixed starting point and from there sequentially adding the neighbouring vertices relative displacements due to strain materials science strain . References Unreferenced date November 2007 DEFAULTSORT Williot Diagram Category Structural analysis civil engineering stub pt Diagrama de Williot wil ... more details
Image Pourbaix Diagram of Iron.svg thumb Pourbaix diagram of iron. ref http people.bath.ac.uk chsataj CHEY0016 20Lecture 2015.htm University of Bath & http www.wou.edu las physci ch412 pourbaix.htm Western Oregon University ref In chemistry , a Pourbaix diagram , also known as a potential pH diagram , maps out possible stable Chemical equilibrium equilibrium phases of an aqueous electrochemical system. Predominant ion boundaries are represented by lines. As such a Pourbaix diagram can be read much like a standard phase diagram with a different set of axes. But like phase diagrams, they do not allow for reaction rate or kinetic effects. The diagrams are named after Marcel Pourbaix 1904 1998 , the Russia n born, Belgian Chemistry chemist who invented them. Diagram Image Uranium pourdaix diagram in water.png thumb right 240px The Pourbaix diagram for uranium in a non complexing aqueous medium e.g. perchloric acid sodium hydroxide . ref name medusa Image Uranium pourdiax diagram in carbonate media.png thumb right 240px The Pourbaix diagram for uranium in carbonate solution. ref name medusa Ignasi Puigdomenech, Hydra Medusa Chemical Equilibrium Database and Plotting Software 2004 KTH Royal Institute of Technology, freely downloadable software at http www.kemi.kth.se medusa ref Pourbaix diagrams are also known as Eh pH diagrams due to the labeling of the two axes. The vertical axis is labeled ... 6 sup M. While such diagrams can be drawn for any chemical system, it is important to note that the addition of a metal binding agent ligand will often modify the diagram. For instance, carbonate has a great effect upon the diagram for uranium. See diagrams at right. In addition, temperature and concentration ... equation. A simplified Pourbaix diagram indicates regions of Immunity , Corrosion and Passivity , instead ... layer formed on its surface when exposed to air. See also Ellingham diagram Frost diagram Ionic partition diagram References reflist Brookins, D. G. , Eh pH Diagrams for Geochemistry. 1988, Springer ... more details
Image Sankeysteam.png thumb 400px Example of a Sankey diagram. File Minard.png thumb 400px Famous Sankey diagram of Napoleon s French invasion of Russia invasion of Russia . Sankey diagrams are a specific type of flow diagram , in which the width of the arrows is shown proportionally to the flow quantity. They are typically used to visualize energy or material or cost transfers between processes. Application They are also commonly used to visualize the energy accounts or material flow accounts on a regional or national level. Sankey diagrams put a visual emphasis on the major transfers or flows within a system. They are helpful in locating dominant contributions to an overall flow. Often, Sankey diagrams show conserved quantities within defined system boundaries, typically Conservation of energy energy or Mass conservation mass , but they can also be used to show flows of non conserved quantities such as exergy . One of the most famous Sankey diagrams is Charles Minard s Map of Napolean s Russian Campaign of 1812. It is a flow map , overlaying a Sankey diagram onto a geographical map. It was created in 1869. Sankey diagrams are named after Irish Captain Matthew Henry Phineas Riall Sankey , who used this type of diagram in 1898 in a publication on the Energy conversion efficiency energy efficiency of a steam engine see reproduction in ref name schmidt cite journal author Mario Schmidt title Der Einsatz von Sankey Diagrammen im Stoffstrommanagement journal Beitraege der Hochschule Pforzheim year 2006 issue Nr. 124 url http umwelt.hs pforzheim.de fileadmin dokumente 2006 Nr 124 Der Einsatz von Sankey Diagrammen im Stoffstrommanagement.pdf format pdf ref , page 8 . While the first charts in black and white were merely used to display one type of flow e.g. steam , using colors .... See also Thermodynamics Material flow management Grassmann diagram exergy flow and loss References ... 2001 DEFAULTSORT Sankey Diagram Category Diagrams de Sankey Diagramm nl Sankey diagram ja ... more details
diagram for a binary system displaying a eutectic point. One type of phase diagram plots temperature ... system for less than 7 carbon see steel . The x axis of such a diagram represents the concentration ...A phase diagram in physical chemistry , engineering , mineralogy , and materials science is a type of chart ... equilibrium equilibrium . In mathematics and physics , phase diagram is used with a different meaning a synonym for a phase space . Overview Common components of a phase diagram are lines ... at which three different phases can coexist. For example, the water phase diagram has a triple point ... diagrams of a single simple substance, such as water molecule water . The Cartesian coordinate system axes correspond to the pressure and temperature . The phase diagram shows, in pressure temperature ... . Image Phase diag2.svg thumb 250px left A typical phase diagram. The dotted line gives Water ... diagram show the points where the free energy and other derived properties becomes non analytic ... phase boundaries . In the diagram on the left, the phase boundary between liquid and gas does not continue indefinitely. Instead, it terminates at a point on the phase diagram called the critical ... diagram of most substances has a positive slope the greater the pressure on a given substance, the closer ... center 540 px Temperature vs. specific entropy phase diagram for water steam. In the area under the red ... h s diagram for steam pressure enthalpy p h diagram for steam temperature entropy T s diagram for steam 3D phase diagrams File pVT 3D diagram.png thumb 200px p V T 3D diagram for fixed amount of pure ... meb applet Phasediagram3D Phasediagram.html 3D Model Water Phase Diagram . ref ref Web applet http ... volume v on a third. Such a 3D graph is sometimes called a P v T diagram. The equilibrium conditions ... point remains a point on the surface even on a 3D phase diagram. An orthographic projection ... collapses the 3D plot into a 2D pressure temperature diagram. When this is done, the solid vapor ... more details
UML diagram types In software engineering , a class diagram in the Unified Modeling Language UML is a type of static structure diagram that describes the structure of a system by showing the system s class ... In the design of a system, a number of classes are identified and grouped together in a class diagram ... on the system s use case diagram, with one and only one boundary class existing for each pair. They are drawn ... as a class diagram. The individual classes are represented just with one compartment, but they often contain up to three compartments. The class diagram is the main building block of object oriented ... in a class diagram represent both the main objects and or interactions in the application and the objects to be programmed. In the class diagram these classes are represented with boxes which contain ... describe the behavior of systems, these class diagrams can be complemented by state diagram or UML ... diagram or class diagram. A link is an instance of an association. In other words, it creates a relationship between two classes. Association Image UML role example.gif 400px right thumbnail Class diagram ... relation. Aggregation Image KP UML Aggregation 20060420.svg 300px right thumbnail Class diagram ... AggregationAndComposition.svg right thumbnail Class diagram showing Composition between two classes ... Image KP UML Generalization 20060325.svg 300px right thumbnail Class diagram showing generalization ... of vehicle Generalization can only be shown on class diagrams and on Use case diagram s. Realization ... Relationship Image Class Dependency.png 305px thumb Class diagram showing dependency between Car ... to produce early conceptual models of the system. Classes at this stage often take the form of boundaries ... between actors and the system s internal components. They might be user interfaces, system ... as though it is attached to the side of the use case system boundary . Alternatively, they can ... Entity classes model the information handled by the system, and sometimes the behaviour associated with the information ... more details
Orphan date February 2009 Infobox Software name Diagram Designer logo screenshot caption author Michael Vinther developer MeeSoft released latest release version 1.24 latest release date latest preview version latest preview date operating system platform Microsoft Windows 98 ME 2000 XP Vista W7 language English language English status genre license Freeware website http meesoft.logicnet.dk Diagram Designer is a freeware free flowchart creating software designed by Michael Vinther. It can also create diagrams and slideshows . Features Customizable template object palette. Spellchecker . Import export Windows Metafile WMF , Enhanced Metafile EMF , BMP file format BMP , JPEG , Portable Network Graphics PNG , MNG , ICO file format ICO , GIF and PCX images. Slide show viewer. Simple graph plotter to plot mathematical expressions. Advanced pocket calculator with equation solver. MeeSoft Image Analyzer integration for bitmap image editing and extended file format support. Uses compressed file format for minimizing drawing file size. Category Windows software Windows software stub ru Diagram Designer ... more details
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