a) The Function Generator provides a quick, error-free way to program scripts. You can:
i. Add Context Sensitive functions that perform operations on a GUI object or get information from the application being tested.
ii. Add Standard and Analog functions that perform non-Context Sensitive tasks such as synchronizing test execution or sending user-defined messages to a report.
iii. Add Customization functions that enable you to modify WinRunner to suit your testing environment.

[Source: JAGAN MOHAN "Interview questions bible"]

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