How Smart Identification works in QTP ?

Answer

• If the usual object identification  process fails , QTP triggers Smart Identification , which is more flexible mechanism for identifying objects provided it is enabled in Object Identification settings.
• Smart Identification uses two categories of properties 

1. Base Filter Properties. It  contains the  most fundamental properties of a particular test object class; those whose values cannot be changed without changing the essence of the original object
2. Optional Filter Properties. Other properties that can help identify objects

HP UFT "forgets" the learned test object description and creates a new object candidate list containing the objects that match all of the properties defined in the Base Filter Properties list. QTP the Uses Base Filter Property to reduce the Object Candidate list. The idea is to narrow down only to one object matching the some or all of the  saved description properties. 

If smart identification is invoked during a test run ,in the test results tree a warning message is generated indicating smart identification was invoked  and a smart identification step is inserted.