Graphics Reference
In-Depth Information
The Context of
Data Visualization
This opening chapter provides an introduction to the subject of data visualization
and the intention behind this topic.
We start things off with some context about the subject. This will briefly explain
why there is such an appetite for data visualization and why it is so relevant in the
modern age against the backdrop of enhanced technology, increasing capture and
availability of data, and the desire for innovative forms of communication.
After this introduction, we then look at the theoretical basis of data visualization,
specifically the importance of understanding visual perception. To help establish a
term of reference for the rest of the topic, we'll then consider a proposed deinition
for this subject.
Next, we introduce the data visualization methodology, a recommended approach
that forms the core of this topic, and discuss its role in supporting an effective and
efficient design process.
Finally, we consider some of the fundamental data visualization design objectives.
These provide a useful framework for evaluating the suitability of the choices we
make along the journey towards an accomplished design solution.
Exploiting the digital age
The following is a quotation from Hal Varian, Google's chief economist
(
http://www.mckinseyquarterly.com/Hal_Varian_on_how_the_Web_
challenges_managers_2286
):
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.
