a brief history of data visualization

d3.js Data-Driven Documents

Scott Murray, Jerome Cukier & Je!rey HeerVisWeek 2012 Tutorial

How much data (bytes) did we produce in 2010?

2010: 1,200 exabytes

Gantz et al, 2008, 2010

2010: 1,200 exabytes

Gantz et al, 2008, 2010

10x increase over 5 years

The ability to take data—to be able to understand it, to process it, to extract value from it, to visualize it, to communicate it—that’s going to be a hugely important skill in the next decades, … because now we really do have essentially free and ubiquitous data. So the complimentary scarce factor is the ability to understand that data and extract value from it.

Hal Varian, Google’s Chief EconomistThe McKinsey Quarterly, Jan 2009

How do people create visualizations?


Chart TypologyPick from a stock of templatesEasy-to-use but limited expressivenessProhibits novel designs, new data types


Chart TypologyPick from a stock of templatesEasy-to-use but limited expressivenessProhibits novel designs, new data types

Component ArchitecturePermits more combinatorial possibilitiesNovel views require new operators, which requires software engineering.

Chart TypologiesExcel, Many Eyes, Google Charts

Visual Analysis LanguagesTableau VizQL, ggplot2

?Component Model Architectures

Prefuse, Flare, Improvise

Graphics APIs OpenGL, Java2D, GDI+, Processing





Graphics APIs OpenGL, Java2D, GDI+, ProcessingE"

cien

cy





Graphics APIs OpenGL, Java2D, GDI+, ProcessingE"

cien

cyExpressiveness


A JavaScript tool for visualization on the web


A JavaScript tool for visualization on the webWritten and maintained by Michael Bostock


A JavaScript tool for visualization on the webWritten and maintained by Michael BostockResearch from Stanford Visualization Group


A JavaScript tool for visualization on the webWritten and maintained by Michael BostockResearch from Stanford Visualization GroupThe successor to our Protovis framework



Available at http://d3js.org



Available at http://d3js.orgBSD-licensed; now widely adopted & deployed


Generate interactive web pages


Generate interactive web pagesBind data to elements in an HTML document



A D3 statement is a document transformation



A D3 statement is a document transformationAdd or modify elements in response to data



A D3 statement is a document transformationAdd or modify elements in response to dataPlus animated transitions, layouts, scales & more




Leverage web standards: HTML, SVG, CSS




Leverage web standards: HTML, SVG, CSSFlexibility, debugging and “future-proofing”

GitHub Rank…

GitHub Rank…

11th most watched project on GitHub