Selenium
Selenium RC
Selenium Grid
Selenium WebDriver
Selenium IDE
parallel execution
multiple browsers
multiple platforms
500 tcs: Sele WD; 21 days
chrome
IE
FF
7 days
7 days
7 days
500 tcs: Sele Grid; 7 days
chrome
7 days
IE
7 days
FF
7 days
Hub
Node 2
Node 4
Node 1
Node 3
IE 10 on Windows
FF on Ubuntu
Safari on MAC
Android
Node 5
IE11 on Windows
Pre-requisites of Grid
standalone server jar