What Does The Diagram Show

Symbolic representation of data using visualization techniques

A diagram is a symbolic representation of data using visualization techniques. Diagrams accept been used since prehistoric times on walls of caves, but became more prevalent during the Enlightenment.^[i] Sometimes, the technique uses a 3-dimensional visualization which is then projected onto a 2-dimensional surface. The word graph is sometimes used as a synonym for diagram.

Overview [edit]

The term "diagram" in its unremarkably used sense can take a general or specific pregnant:

visual information device : Similar the term "illustration", "diagram" is used as a collective term continuing for the whole class of technical genres, including graphs, technical drawings and tables.
specific kind of visual brandish : This is the genre that shows qualitative data with shapes that are connected by lines, arrows, or other visual links.

In science the term is used in both ways. For example, Anderson (1997) stated more more often than not: "diagrams are pictorial, yet abstract, representations of information, and maps, line graphs, bar charts, technology blueprints, and architects' sketches are all examples of diagrams, whereas photographs and video are not".^[ii] On the other mitt, Lowe (1993) defined diagrams as specifically "abstract graphic portrayals of the field of study matter they represent".^[3]

In the specific sense diagrams and charts contrast with computer graphics, technical illustrations, infographics, maps, and technical drawings, by showing "abstract rather than literal representations of information".^[4] The essence of a diagram tin can be seen as:^[four]

a form of visual formatting devices
a display that does not evidence quantitative information (numerical information), but rather relationships and abstract information
with edifice blocks such equally geometrical shapes connected by lines, arrows, or other visual links.

Or in Hall'south (1996) words "diagrams are simplified figures, caricatures in a mode, intended to convey essential meaning".^[5] These simplified figures are oftentimes based on a set of rules. The basic shape according to White (1984) tin can be characterized in terms of "elegance, clarity, ease, pattern, simplicity, and validity".^[4] Elegance is basically determined past whether or non the diagram is "the simplest and almost fitting solution to a problem".^[6]

Diagrammatology [edit]

Diagrammatology is the academic study of diagrams. Scholars notation that while a diagram may await like to the thing that it represents, this is not necessary. Rather a diagram may only accept structural similarity to what information technology represents, an idea often attributed to Charles Sanders Peirce.^[vii] ^: 42 Structural similarity can be defined in terms of a mapping between parts of the diagram and parts of what the diagram represents and the backdrop of this mapping, such as maintaining relations between these parts and facts about these relations. This is related to the concept of isomorphism, or homomorphism in mathematics.^[7] ^: 43

Sometimes sure geometric properties (such as which points are closer) of the diagram can be mapped to properties of the thing that a diagram represents. On the other hand the representation of an object in a diagram may exist overly specific and properties that are truthful in the diagram may non be true for the object the diagram represents.^[vii] ^: 48 A diagram may deed as a ways of cerebral extension allowing reasoning to have place on the diagram based on which constraints are similar.^[7] ^: 50

Gallery of diagram types [edit]

At that place are at least the following types of diagrams:

Logical or conceptual diagrams, which take a collection of items and relationships between them, and express them by giving each item a 2D position, while the relationships are expressed as connections betwixt the items or overlaps between the items, for example:

Quantitative diagrams, which display a relationship between two variables that take either discrete or a continuous range of values; for example:

Hanger diagram.

Schematics and other types of diagrams, for example:

Many of these types of diagrams are commonly generated using diagramming software such as Visio and Gliffy.

Diagrams may also be classified according to use or purpose, for example, explanatory and/or how to diagrams.

Thousands of diagram techniques exist. Some more than examples follow:

Specific diagram types [edit]

Come across as well [edit]

Look up diagram in Wiktionary, the free lexicon.

Chart
Table (information)
Diagrammatic reasoning
Diagrammatology
Feel model
Listing of graphical methods
Mathematical diagram
Plot (graphics)
commons:Specific diagram types – gallery of many diagram types.
commons:Commons:Diagram resources

References [edit]

^ Eddy, Matthew Daniel (2021). "Diagrams". In Blair, Ann; Duguid, Paul; Goeing, Anja-Silvia; Grafton, Anthony (eds.). Information: A Historical Companion. Princeton, NJ: Princeton University Press. pp. 397–401. ISBN9780691179544. JSTOR j.ctv1pdrrbs.42. OCLC 1202730160.
^ Michael Anderson (1997). "Introduction to Diagrammatic Reasoning," at cs.hartford.edu. Retrieved 21 July 2008.
^ Lowe, Richard Grand. (1993). "Diagrammatic information: techniques for exploring its mental representation and processing". Data Design Journal. 7 (1): three–xviii. doi:10.1075/idj.7.1.01low.
^ ^a ^b ^c Brasseur, Lee East. (2003). Visualizing technical information: a cultural critique. Amityville, N.Y: Baywood Pub. ISBN0-89503-240-6.
^ Bert S. Hall (1996). "The Didactic and the Elegant: Some Thoughts on Scientific and Technological Illustrations in the Eye Ages and Renaissance". in: B. Braigie (ed.) Picturing noesis: historical and philosophical problems concerning the utilize of fine art in science. Toronto: Academy of Toronto Press. p.9
^ White, January V. (1984). Using charts and graphs: grand ideas for visual persuasion . New York: Bowker. ISBN0-8352-1894-5.
^ ^a ^b ^c ^d Studies in diagrammatology and diagram praxis. Olga Pombo, Alexander Gerner. London: College Publications. 2010. ISBN978-1-84890-007-3. OCLC 648770148. {{cite volume}}: CS1 maint: others (link)

Farther reading [edit]

Wikimedia Commons has media related to diagrams.

Wikiquote has quotations related to Diagram .

Bounford, Trevor (2000). Digital diagrams. New York: Watson-Guptill Publications. ISBN978-0-8230-1572-half dozen.
Michael Anderson, Peter Cheng, Volker Haarslev (Eds.) (2000). Theory and Application of Diagrams: First International Conference, Diagrams 2000. Edinburgh, Scotland, UK, September 1–3, 2000. Proceedings.
Garcia, Grand. (ed.), (2012) The Diagrams of Architecture. Wiley. Chichester.