Talk:Diagram

message: * 
*  Abstract: A large number of taxonomic approaches have been proposed for the study of diagrammatic representations. We have reviewed existing taxonomic systems as well as current research questions in this multi-disciplinary community. Based on this review, we propose a set of taxonomic dimensions that can be used for analysing and comparing existing taxonomic systems, and for assessing their relevance to specific research questions. The proposed framework also enables a comparative positioning of the various research endeavours in this multi-disciplinary field.
Looks useful - here is another useful read: Rp (talk) 06:12, 6 June 2012 (UTC)
thread_title: Some sources for article improvement

message: :The next talk item started by Wikicommons Category talk:Diagrams. It is copied here and restructured by Marcel Douwe Dekker
Here below are the definitions of diagram from major dictionaries. Note that some definitions include charts and graphs, and some don't. 
* Dictionary.com Unabridged
# a figure, usually consisting of a line drawing, made to accompany and illustrate a geometrical theorem, mathematical demonstration, etc.
# a drawing or plan that outlines and explains the parts, operation, etc., of something: a diagram of an engine.
# a chart, plan, or scheme.
* The American Heritage
# A plan, sketch, drawing, or outline designed to demonstrate or explain how something works or to clarify the relationship between the parts of a whole.
# Mathematics. A graphic representation of an algebraic or geometric relationship.
# A chart or graph.
* Webster's Revised Unabridged Dictionary
# (Geom.) A figure or drawing made to illustrate a statement, or facilitate a demonstration; a plan.
# Any simple drawing made for mathematical or scientific purposes, or to assist a verbal explanation which refers to it; a mechanical drawing, as distinguished from an artistical one.
* Merriam-Webster Online Dictionary
# a graphic design that explains rather than represents; especially : a drawing that shows arrangement and relations (as of parts)
# a line drawing made for mathematical or scientific purposes 
Now there is also a definition in Wiktionary, which seems to merge the first four give definitions. Wikitionary states on diagram:
# A plan, drawing, sketch or outline to show how something works, or show the relationships between the parts of a whole; electrical diagrams show device interconnections [see schematics].
#  a graphic representation of an algebraic or geometric relationship
# A graph or chart
In the article itselve a defintion is given based on Lee. E. Brasseur (2003). This states, that the term "Diagram" in common sense has two meanings:
# A collective term for any visual information device, like the term "illustration" often used as a representative term, to stand for the whole class of technical genres, including graphs and tables. 
# The specific class of visual display, that show qualitative data with shapes that are connected by lines, arrows, or other visual links.
Now it is interesting to make a comparison. I think it is quiet simple here. 
* The "Wiktionary definition" and "Wikipedia description here" are just complementary. 
* The four dictionary - and the Wiktionary - definitions give a registration of the most general different (two or) three meanings. 
* And the Wikipedia definition gives a more general reflection on the types of use of the term in real life: it gives an overview of the broad and the specific definition of the term diagram. 
-- Marcel Douwe Dekker (talk) 18:59, 28 July 2008 (UTC)
thread_title:  Definitions of "diagram" 

message: Interesting quotes about diagrams:
* "A diagram, indeed, so far as it has a general signification, is not a pure icon; but in the middle part of our reasonings we forget that abstractness in great measure, and the diagram is for us the very thing."
** Source: (1885) C.S. Pierce (1885) On The Algebra of Logic, (source: Wikiquote)
* "Diagrams are abstract graphic portrayals of the subject matter they represent". 
**Source: Lowe, Richard K. (1993). "Diagrammatic information: techniques for exploring its mental representation and processing". In; Information Design Journal 7 (1): 3–18. p.7.
* "Graphs and diagrams can be classified into two broad categories depending on whether their application or use is for technical of for popular appeal." 
** Source: Frederick E. Giesecke (1993) Engineering Graphics. Prentice Hall. p.835
* "Diagrams are schematic pictures of objects or events that rely on conventionally defined symbols".
** Source: S.F. Kosslyn (1994). Elements of graphic design. New York : W.H.Freeman. p.238  
* "Diagrams are usually simplified figures, caricatures in a way, intended to convey essential meaning". 
** Source: Bert S. Hall (1996). "The Didactic and the Elegant: Some Thoughts on Scientific and Technological Illustrations in the Middle Ages and and Renaissance". in: B. Braigie (ed.) Picturing knowledge: historical and philosophical problems concerning the use of art in science. Toronto: University of Toronto Press. p.9
* "A diagram is a picture, in which one is intended to perform inference about the thing pictured, by mentally following around the parts of the diagram." 
** Source: James Franklin (1999) "Diagrammatic reasoning and modelling in the imagination: the secret weapons of the Scientific Revolution". In: 1543 and All That: Image and Word, Change and Continuity in the Proto-Scientific Revolution, ed. G. Freeland & A. Corones (Dordrecht, 1999), pp. 53-115. (section: Image and diagram) p.3.
-- Mdd (talk) 14:18, 17 November 2009 (UTC)
thread_title:  Quotes about diagrams 

message: I think category of Chart-like diagrams and Graph-based diagrams are not exact.
Why don't we define Chart and Graph first for categorize?
I think we should use https://en.wikipedia.org/wiki/Graph_(discrete_mathematics) or https://en.wikipedia.org/wiki/Graph_(abstract_data_type) for definition of the Graph.
Or If it's hard to categorize, let's just merge Chart-like diagrams and Graph-based diagrams.  — Preceding unsigned comment added by Potato friend (talk • contribs) 03:09, 6 July 2020 (UTC)
thread_title:  Main diagram types 

message: Rather than repeat everything here, please see the discussion here: 
*Commons:Categories for discussion/2019/09/Category:Diagrams by subject
--Timeshifter (talk) 23:00, 4 August 2020 (UTC)
thread_title:  Tables, graphs, and maps are not diagrams. Definitions of diagram by 4 major dictionaries 

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