Explain the concept of how QTP identifies object.
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Answer Posted / parusuram challa
Object identification:
QTP will identify the object in the following manner during
the running.
It will under stand the script statement.
Then it releases that it needs to from some action on some
object, for that it needs some information about that
object.
For that information it will go to the object repository
and get the information from their.
With that information it will try to identify that object.
If it all the object is identified it will perform action
on that object. Here the information means object
properties.
And now the question is that how it is learning those
properties, to identify the objects.
This is the point where every one thinking his one style,
but the fact is that. That the process of learning is like
this.
There are two types of object identification that QTP
normally uses apart from the ordinal identifiers.
In general there are four types of properties that QTP
having.
1. Mandatory properties.
2. Assistive properties.
3. Base filter properties.
4. Optional filter properties.
And ordinal identifiers like location, index and creation
time.
As I told that QTP will be using two types of object
identification.
The first one is normal identification.
In this identification the learning of the properties will
be in the following way.
First the QTP will learn all the mandatory properties at a
time. And with these properties it will try to identify the
object if at all it feels these properties are sufficient
to identify the object uniquely, and then it will stop
learning and use those properties. If at all it feels these
properties are not sufficient to identify the object
uniquely, then it will learn the first assistive property.
And try to identify the object with those properties
(mandatory and first assistive property), if at all it
feels that these properties are sufficient to identify the
object uniquely then it will stop learning and use those
properties to identify the object. If it feels these
properties are not sufficient to identify the object
uniquely. Then it will learn the second assistive property
and repeat the same process till it identify the object
uniquely. If at all it fails to identify the object
uniquely by using all these properties also. Then the
ordinal identifiers come into picture. This is the process
QTP identifies the objects when the smart identification is
disable.
The second type of identification is smart identification.
In the process QTP will be learning all the mandatory, base
filter properties and optional filter properties at time.
But the identification process is as follows.
If you invoke the smart identification then also first QTP
will try to identify the object by using normal
identification process. That is the above process apart
from the ordinal identifier. Now it will not use the
ordinal identifiers. If the normal identification fails
then it will come to the smart identification. And forget
about the normal identification also all those properties
learnt in the normal identification. And now it will using
all the base filter properties at time and tries to
identify the object uniquely. If at all it feels that these
are sufficient then it will use these properties to
identify the object uniquely. Otherwise take the first
optional filter property and same process will continue as
above till the object is identified uniquely. If at all the
smart identification is also fails then it will go to use
the ordinal identifiers. This the actual process of
identification. If we have any questions regarding this
please go head and send me the e-mail to me or directly you
can contact me. only in the mentioned hours only.(8.00 PM
TO 8.00AM)
Parusuram challa,
pramchalla@gmail.com
(+91)9822769949
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