How does it work?
Page Object Pattern is a pattern that displays user interface as a class. In addition to user interface, functionality of the page is also described in this class. This provides a bridge between page and test.
This article deals with the following automation tools for Flex applications:
Flex Pilot
Selenium Flex API
Selenium WebDriver + Selenium IDE/FlexMonkium
We’ll also discuss the use of one of them on example of the Flex application shown at the picture below.
Meanwhile, let’s pick the best tool of the above to automate the testing of our application
Practical Tips on Software Testing 