The challenge for the designer is to choose the right marker with which to represent the data point, with size and color being the most prominent considerations.

FORBES: Why Animated Data Maps Work So Well

It shows how important color choice can be: The main point of distinction from other Evora models is the color palette and options.

FORBES: 5. Red

After speaking with many traders with color-vision deficiencies, designers of DJ FX Trader, a foreign exchange tool offered by Dow Jones, the publisher of The Wall Street Journal, say they made a point of using icons to supplement color.

WSJ: New Outlook for Colorblindness

With the new E-330, the company has added something you won't find on any other DSLR: continuous live color previews via the LCD, enabling SLR shooters to skip the viewfinder, just as point-and-shooters have done for years.

ENGADGET: Olympus E-330: first DSLR with live LCD