Data Transfer

Data Cleaning 

Analytics

Analytics and other tasks sometimes get done by same software as data visualization

Everything done via code

Data Visualization

Analytics

Data Visualization

Data Transfer

Separate GUIs

code library

Tasks done by separate software & code

Hard to talk about just data visualization tools

Data Transer

Data Cleaning 

Analytics

Data Visualization

Code inside GUI for these

GUI used for these

Single Software

GUI used for these

Data Cleaning 

Spreadsheets & Charts

1976-1992  Timeline

• Spreadsheet analytics as way to sell computers
  • Pattern of tool development in small companies, then bought by larger companies to be provided to user for free with OS
• Charting secondary to calculation

1976 - SAS

1979 - Vizicalc

1983 - Lotus

1985 - Excel

Statistics and calculations on mainframe

Early spreadsheet on Apple II

IBM's first "killer app", included word perfect and debase

Controlled  the market since version 5 in 1993

Early internet doldrums

 1993-2006   Timeline

• Data Limit Implications
  • Data visualization too big for puny internet
  • Data often stored on local machines or on-site servers
  • Software not pre-installed must be physically delivered, which requires distribution, marketing, big scale.
• Early visualization libraries but not pure-JavaScript. Browser add-ons required.
• Start of new business intelligence tools

1993 - Qlik

2001 - Chart Director

2003 - Fusion Charts

2006 - Tableau

Early B.I. tool from Sweden. Stayed small for many years, now much larger.

Chart library for many languages but directed at desktops, not web

Flash-based chart library, not pure JavaScript

Started as university spin-off, later grew into popular BI tool

Data on WEb is Easier

 2006-2017   Timeline

• Key trends (discuss more on next slides)
  • Who codes changes
  • Internet speeds up
  • Browsers standards
  • Open-source increases rate of development

2000s

2007 - GoogleChartAPI

2007 - Flot charts

2010 - Protoviz

2011 - D3.js

2013- Chart.js

JS library but takes data to API & returns image of chart

Early JS library not using flash, but limited in chart types

Early js library that led to more flexible d3.js

Pure JS library, open-source, direct DOM manipulation, & flexible

Canvas-based JavaScript data visualization

1994

2017

1. Everyone from 1996

2. A lot of people know a bit for work, often within another piece of software.

3. A bunch of students who were taught in a college class but aren't C.S. students.

4. code bootcamp students

5. Internet taught

2017 Compared to past

Who writes code?

These groups are growing fast!

45% of developers have B.A., B.S. in C.S.

Stack Overflow 2016 Developer Survey found =

1. People with C.S. degrees

2. Hackers

3. People making things in their garages

More people are doing more advanced data visualization, because more people know how to code

majority don't have a traditional C.S. degree

internet speeds LESS OF a constraint

Many of the data visualizations that load today in <1 second today would take 10s of seconds to download (and then additional time for your browser to display) years ago

(you can use this calculator to figure out how long your data visualizations would take to download in the past) 

Nielsen's "Law" of Bandwidth

Edholm's "Law" of Bandwidth

both of these use top-of-the-line speeds at the time and show more or less the same thing

The last D3.js visualiation I made :  2 minutes in 1998, 5 seconds in 2003, <1 seconds in 2005

a google chrome experiment from 2012

Key Changes

to Browsers & web standards

influence what data visualizations can do

Summary

CHANGES IN DATA VISUALIZATION TOOLS

FOLLOW CHANGES IN:

• Processing Power
  • Main-frame -> PC
  • Desktop -> Browser
• Code Libraries
  • server-side -> Flash -> Pure JavaScript
• Internet speeds
  • What % (or size) of datasets can be visualized 
• Browser standards =  available tools & features
• Who creates = speed & direction of innovation

End

User or 3rd party generated examples extensions, templates, and plug-ins

Instead of standing on the shoulders of long ago giants, you stand on the shoulders of anyone doing similar work, somewhere, right now.

 Speed of new things and diversity of things goes way up. Both open-source and $ license-based

Tableau

Petrel

D3.js

Spotfire

Tableau

Spotfire

D3.js

Ruths.ai template

• VR & AR - more dimensions! but uncharted road

  • ​We've been working in 2D for hundreds of years as 3D representation was always too expensive

• AI in data prep & chart style selection
  • The return of Clippy? but less annoying?
• WebGL will overtake SVG for animation speed
• Less grunt work
  • better data engineering, better data architecture, and more machine-readable data
  • More blending of BI & Data Science & IT (people & tools)
  • APIs that talk to APIs that talk to APIs
• Growth of data visualization as a discipline
  • More "data visualization" jobs on linkedIN now than a year ago
  • Attempts to define what a 100% data visualization job title should be responsible for but many differing opinions

Near-Future trends (0-2 years)