A very good question and article by George Ambler. You’ll find it here:
Who is George?
“I work in the information technology industry, as an Executive Partner with Gartner Executive Programs where I act as a trusted adviser to Chief Information Officers across various industries. My focus is on guiding Chief Information Officers in harnessing the strategic value of technology in support of business strategy. I live in Johannesburg, South Africa, I am married with two beautiful children. In my free time, I enjoy travel, music, writing, reading, photography, and golfing.”
© 2013 George Ambler. All rights reserved. Originally posted at http://www.georgeambler.com