I have written below reply for a question asked about "Framework in QTP" in our QTP knol
The below link may help to get some idea about Keyword driven testing.
http://mercuryquicktestprofessional.blogspot.com/2006/11/whats-your-automation-framework.html
In case of keyword driven testing, we need to do proper planning and initial huge effort. Anyway it will give benefit of easy maintenance and easily adding more test cases/scenarios.
Many great leaders and scientists were given lot of Motivational Quotes.
We are trying to collect them and publish in this "Quotes for you" knol.
It will be interesting and inspiring to read the Motivational Quotes daily.