||It has been suggested that this article be merged with Information visualization. (Discuss) Proposed since February 2013.|
Data visualization is the study of the visual representation of data, meaning "information that has been abstracted in some schematic form, including attributes or variables for the units of information".
According to Friedman (2008) the "main goal of data visualization is to communicate information clearly and effectively through graphical means. It doesn’t mean that data visualization needs to look boring to be functional or extremely sophisticated to look beautiful. To convey ideas effectively, both aesthetic form and functionality need to go hand in hand, providing insights into a rather sparse and complex data set by communicating its key-aspects in a more intuitive way. Yet designers often fail to achieve a balance between form and function, creating gorgeous data visualizations which fail to serve their main purpose — to communicate information".
Data visualization is closely related to information graphics, information visualization, scientific visualization, and statistical graphics. In the new millennium, data visualization has become an active area of research, teaching and development. According to Post et al. (2002), it has united scientific and information visualization. Brian Willison has demonstrated that data visualization has also been linked to enhancing agile software development and customer engagement.
KPI Library has developed the “Periodic Table of Visualization Methods,” an interactive chart displaying various data visualization methods. It includes six types of data visualization methods: data, information, concept, strategy, metaphor and compound.
Data visualization scope 
There are different approaches on the scope of data visualization. One common focus is on information presentation, such as Friedman (2008) presented it. In this way Friendly (2008) presumes two main parts of data visualization: statistical graphics, and thematic cartography. In this line the "Data Visualization: Modern Approaches" (2007) article gives an overview of seven subjects of data visualization:
- Displaying news
- Displaying data
- Displaying connections
- Displaying websites
- Articles & resources
- Tools and services
All these subjects are closely related to graphic design and information representation.
- Visualization algorithms and techniques
- Volume visualization
- Information visualization
- Multiresolution methods
- Modelling techniques and
- Interaction techniques and architectures
For different types of visualizations and their connection to infographics, see infographics.
Related fields 
Data acquisition 
Data acquisition is the sampling of the real world to generate data that can be manipulated by a computer. Sometimes abbreviated DAQ or DAS, data acquisition typically involves acquisition of signals and waveforms and processing the signals to obtain desired information. The components of data acquisition systems include appropriate sensors that convert any measurement parameter to an electrical signal, which is acquired by data acquisition hardware.
Data analysis 
Data analysis is the process of studying and summarizing data with the intent to extract useful information and develop conclusions. Data analysis is closely related to data mining, but data mining tends to focus on larger data sets with less emphasis on making inference, and often uses data that was originally collected for a different purpose. In statistical applications, some people divide data analysis into descriptive statistics, exploratory data analysis, and inferential statistics (or confirmatory data analysis), where the EDA focuses on discovering new features in the data, and CDA on confirming or falsifying existing hypotheses.
Types of data analysis are:
- Exploratory data analysis (EDA): an approach to analyzing data for the purpose of formulating hypotheses worth testing, complementing the tools of conventional statistics for testing hypotheses. It was so named by John Tukey.
- Qualitative data analysis (QDA) or qualitative research is the analysis of non-numerical data, for example words, photographs, observations, etc.
Data governance 
Data governance encompasses the people, processes and technology required to create a consistent, enterprise view of an organisation's data in order to:
- Increase consistency & confidence in decision making
- Decrease the risk of regulatory fines
- Improve data security
- Maximize the income generation potential of data
- Designate accountability for information quality
Data management 
Data management comprises all the academic disciplines related to managing data as a valuable resource. The official definition provided by DAMA is that "Data Resource Management is the development and execution of architectures, policies, practices, and procedures that properly manage the full data lifecycle needs of an enterprise." This definition is fairly broad and encompasses a number of professions that may not have direct technical contact with lower-level aspects of data management, such as relational database management.
Data mining 
Data mining is the process of sorting through large amounts of data and picking out relevant information. It is usually used by business intelligence organizations, and financial analysts, but is increasingly being used in the sciences to extract information from the enormous data sets generated by modern experimental and observational methods.
It has been described as "the nontrivial extraction of implicit, previously unknown, and potentially useful information from data" and "the science of extracting useful information from large data sets or databases." In relation to enterprise resource planning, according to Monk (2006), data mining is "the statistical and logical analysis of large sets of transaction data, looking for patterns that can aid decision making".
Data transforms 
Data transforms is the process of Automation and Transformation, of both real-time and offline data from one format to another. There are standards and protocols that provide the specifications and rules, and it usually occurs in the process pipeline of aggregation or consolidation or interoperability. The primary use cases are in integration systems organizations, and compliance personnels.
Data visualization software 
|ANTz||Realtime 3D Data Visualization||Analysts, Scientists, Programmers, VR||Public Domain|
|Amira||GUI/Code Data Visualisation||Scientists||Proprietary|
|Avizo||GUI/Code Data Visualisation||Engineers and Scientists||Proprietary|
|Cave5D||Virtual Reality Data Visualization||Scientists||Open Source|
|curios.IT||Interactive 3D Data Visualization||Business Managers||Proprietary|
|Data Desk||GUI Data Visualisation||Statistician||Proprietary|
|DAVIX||Operating System with data tools||Security Consultant||Various|
|Dundas Data Visualization, Inc.||GUI Data Visualisation||Business Managers||Proprietary|
|ELKI||Data mining visualizations||Scientists and Teachers||Open Source|
|Eye-Sys||GUI/Code Data Visualisation||Engineers and Scientists||Proprietary|
|Ferret Data Visualization and Analysis||Gridded Datasets Visualisation||Oceanographers and meteorologists||Open Source|
|Geoscape||Geographic Data Visualisation||Business Users||Proprietary|
|TreeMap||GUI Data Visualisation||Business Managers||Proprietary|
|Tulip||GUI Data Visualization||Researchers and Engineers||Open Source|
|Gephi||GUI Data Visualisation||Statistician||Open Source|
|GGobi||GUI Data Visualisation||Statistician||Open Source|
|Grapheur||GUI Data Visualisation||Business Users, Project Managers, Coaches||Proprietary|
|ggplot2||Data visualization package for R||Programmers||Open Source|
|Mondrian||GUI Data Visualisation||Statistician||Open Source|
|IBM OpenDX||GUI/Code Data Visualisation||Engineers and Scientists||Open Source|
|IDL (programming language)||Code Data Visualisation||Programmer||Many|
|IDL (programming language)||Programming Language||Programmer||Open Source|
|InetSoft||GUI Data Visualization||Business Users, Developers, Academics||Proprietary|
|Infogr.am||Online Infographic tool||Journalists, Bloggers, Education, Business Users||Proprietary|
|Instantatlas||GIS Data Visualisation||Analysts, researchers, statisticians and GIS professionals||Proprietary|
|MeVisLab||GUI/Code Data Visualisation||Engineers and Scientists||Proprietary|
|Kumu||Web-Based Relationship Visualization||Social Impact, Business, Government & Policy||Proprietary|
|Panopticon Software||Enterprise application, SDK, Rapid Development Kit (RDK)||Capital Markets, Telecommunications, Energy, Government||Proprietary|
|Panorama Software||GUI Data Visualisation||Business Users||Proprietary|
|PanXpan||GUI Data Visualisation||Business Users||Proprietary|
|ParaView||GUI/Code Data Visualisation||Engineers and Scientists||BSD|
|Processing (programming language)||Programming Language||Programmers||GPL|
|ProfilePlot||GUI Data Visualisation||Engineers and Scientists||Proprietary|
|protovis||Library / Toolkit||Programmers||BSD|
|qunb||GUI Data Visualisation||Non-Expert Business Users||Proprietary|
|SAS Institute||GUI Data Visualisation||Business Users, Analysts||Proprietary|
|ScienceGL||Components / Solutions||OEM, Scientists, Engineers, Analysts||Proprietary|
|Smile (software)||GUI/Code Data Visualisation||Engineers and Scientists||Proprietary|
|Spotfire||GUI Data Visualisation||Business Users||Proprietary|
|StatSoft||Company of GUI/Code Data Visualisation Software||Engineers and Scientists||Proprietary|
|Tableau Software||GUI Data Visualisation||Business Users||Proprietary|
|PowerPanels||GUI Data Visualisation||Business Users||Proprietary|
|The Hive Group: Honeycomb||GUI Data Visualisation||Energy, Financial Services, Manufacturers, Government, Military||Proprietary|
|The Hive Group: HiveOnDemand||GUI Data Visualisation||Business Users, Academic Users||Proprietary|
|TinkerPlots||GUI Data Visualisation||Students||Proprietary|
|Tom Sawyer Software||Data Visualization and Social Network Analysis Applications||Capital Markets, Telecommunications, Energy, Government; Business Users, Engineers, and Scientists||Proprietary|
|Trade Space Visualizer||GUI/Code Data Visualisation||Engineers and Scientists||Proprietary|
|Visifire||Library||Programmers||Was Open Source, now Proprietary|
|Vis5D||GUI Data Visualization||Scientists||Open Source|
|VisAD||Java/Jython Library||Programmers||Open Source|
|VisIt||GUI/Code Data Visualisation||Engineers and Scientists||BSD|
|VTK||C++ Library||Programmers||Open Source|
|Weave||Web-based data visualization||Many||Open Source|
|Yoix||Programming Language||Programmers||Open Source|
|Visual.ly||Company||Creative Tools: Data curation and visualization||Proprietary|
|Holsys One: Show the algorithms inside a data||GUI Data Visualisation||Engineers and Scientists||Proprietary|
||The topic of this article may not meet Wikipedia's notability guideline for neologisms. (August 2010)|
||This article needs additional citations for verification. (March 2010)|
Data presentation architecture 
Data presentation architecture (DPA) is a skill-set that seeks to identify, locate, manipulate, format and present data in such a way as to optimally communicate meaning and proffer knowledge.
Historically, the term data presentation architecture is attributed to Kelly Lautt: "Data Presentation Architecture (DPA) is a rarely applied skill set critical for the success and value of Business Intelligence. Data presentation architecture weds the science of numbers, data and statistics in discovering valuable information from data and making it usable, relevant and actionable with the arts of data visualization, communications, organizational psychology and change management in order to provide business intelligence solutions with the data scope, delivery timing, format and visualizations that will most effectively support and drive operational, tactical and strategic behaviour toward understood business (or organizational) goals. DPA is neither an IT nor a business skill set but exists as a separate field of expertise. Often confused with data visualization, data presentation architecture is a much broader skill set that includes determining what data on what schedule and in what exact format is to be presented, not just the best way to present data that has already been chosen (which is data visualization). Data visualization skills are one element of DPA."
DPA has two main objectives:
- To use data to provide knowledge in the most effective manner possible (provide relevant, timely and complete data to each audience member in a clear and understandable manner that conveys important meaning, is actionable and can affect understanding, behavior and decisions)
- To use data to provide knowledge in the most efficient manner possible (minimize noise, complexity, and unnecessary data or detail given each audience's needs and roles)
With the above objectives in mind, the actual work of data presentation architecture consists of:
- Defining important meaning (relevant knowledge) that is needed by each audience member in each context
- Finding the right data (subject area, historical reach, breadth, level of detail, etc.)
- Determining the required periodicity of data updates (the currency of the data)
- Determining the right timing for data presentation (when and how often the user needs to see the data)
- Utilizing appropriate analysis, grouping, visualization, and other presentation formats
- Creating effective delivery mechanisms for each audience member depending on their role, tasks, locations and access to technology
Related fields 
DPA work has some commonalities with several other fields, including:
- Business analysis in determining business goals, collecting requirements, mapping processes.
- Solution architecture in determining the optimal detailed solution, including the scope of data to include, given the business goals
- Business process improvement in that its goal is to improve and streamline actions and decisions in furtherance of business goals
- Statistical analysis or data analysis in that it creates information and knowledge out of data
- Data visualization in that it uses well-established theories of visualization to add or highlight meaning or importance in data presentation.
- Information architecture, but information architecture's focus is on unstructured data and therefore excludes both analysis (in the statistical/data sense) and direct transformation of the actual content (data, for DPA) into new entities and combinations.
- Graphic or user design: As the term DPA is used, it falls just short of design in that it does not consider such detail as colour palates, styling, branding and other aesthetic concerns, unless these design elements are specifically required or beneficial for communication of meaning, impact, severity or other information of business value. For example:
- choosing to provide a specific colour in graphical elements that represent data of specific meaning or concern is part of the DPA skill-set
- choosing locations for various data presentation elements on a presentation page (such as in a company portal, in a report or on a web page) in order to convey hierarchy, priority, importance or a rational progression for the user is part of the DPA skill-set.
See also 
- Information architecture
- Information design
- Scientific visualization
- Software visualization
- business analysis
- business intelligence
- data analysis
- statistical analysis
- data warehouse
- data profiling
- corporate performance management
- information architecture
- Information graphics
- Information visualization
- statistical graphics
- interaction techniques
- interaction design
- visual analytics
- balanced scorecard
- Michael Friendly (2008). "Milestones in the history of thematic cartography, statistical graphics, and data visualization".
- Vitaly Friedman (2008) "Data Visualization and Infographics" in: Graphics, Monday Inspiration, January 14th, 2008.
- Fernanda Viegas and Martin Wattenberg, "How To Make Data Look Sexy", CNN.com, April 19, 2011. http://articles.cnn.com/2011-04-19/opinion/sexy.data_1_visualization-21st-century-engagement?_s=PM:OPINION
- Frits H. Post, Gregory M. Nielson and Georges-Pierre Bonneau (2002). Data Visualization: The State of the Art. Research paper TU delft, 2002..
- Brian Willison, "Visualization Driven Rapid Prototyping", Parsons Institute for Information Mapping, 2008
- Lengler, Ralph; Lengler, Ralph. "Periodic Table of Visualization Methods". www.visual-literacy.org. Retrieved 15 March 2013.
- "Data Visualization: Modern Approaches". in: Graphics, August 2nd, 2007
- W. Frawley and G. Piatetsky-Shapiro and C. Matheus (Fall 1992). "Knowledge Discovery in Databases: An Overview". AI Magazine: pp. 213–228. ISSN 0738-4602.
- D. Hand, H. Mannila, P. Smyth (2001). Principles of Data Mining. MIT Press, Cambridge, MA. ISBN 0-262-08290-X.
- Ellen Monk, Bret Wagner (2006). Concepts in Enterprise Resource Planning, Second Edition. Thomson Course Technology, Boston, MA. ISBN 0-619-21663-8.
- The first formal, recorded, public usages of the term data presentation architecture were at the three formal Microsoft Office 2007 Launch events in Dec, Jan and Feb of 2007-08 in Edmonton, Calgary and Vancouver (Canada) in a presentation by Kelly Lautt describing a business intelligence system designed to improve service quality in a pulp and paper company. The term was further used and recorded in public usage on December 16, 2009 in a Microsoft Canada presentation on the value of merging Business Intelligence with corporate collaboration processes.
Further reading 
- Chandrajit Bajaj, Bala Krishnamurthy (1999). Data Visualization Techniques.
- William S. Cleveland (1993). Visualizing Data. Hobart Press.
- William S. Cleveland (1994). The Elements of Graphing Data. Hobart Press.
- Alexander N. Gorban, Balázs Kégl, Donald Wunsch, and Andrei Zinovyev (2008). Principal Manifolds for Data Visualization and Dimension Reduction. LNCSE 58. Springer.
- John P. Lee and Georges G. Grinstein (eds.) (1994). Database Issues for Data Visualization: IEEE Visualization '93 Workshop, San Diego.
- Peter R. Keller and Mary Keller (1993). Visual Cues: Practical Data Visualization.
- Frits H. Post, Gregory M. Nielson and Georges-Pierre Bonneau (2002). Data Visualization: The State of the Art.
- Stewart Liff and Pamela A. Posey, Seeing is Believing: How the New Art of Visual Management Can Boost Performance Throughout Your Organization, AMACOM, New York (2007), ISBN 978-0-8144-0035-7
- Stephen Few (2009) Fundamental Differences in Analytical Tools - Exploratory, Custom, or Customizable.
|Wikimedia Commons has media related to: Data visualization|
- Yau, Nathan (2011), Visualize this, the flowing data guide to design visualization and statistics, Wiley, p. 384, ISBN 978-0470944882
- Milestones in the History of Thematic Cartography, Statistical Graphics, and Data Visualization, An illustrated chronology of innovations by Michael Friendly and Daniel J. Denis.
- Peer-reviewed definition of Data Visualization with commentaries
- We Love Infographics
- The data visualization academy  http://bigdataviz.dk/