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3. In <webapp> tag, we have different attributes and their purpose is as follows:

<webapp name="practice"
       title="Practice"
       server="default-server"
       base-permission="OFBTOOLS"
       location="webapp/practice"
       mount-point="/practice"
       app-bar-display="false"/>

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${parameters.mainDecoratorLocation}

. Which increases the code Independence from changing the path at many places when we need to change the main decorator location. At that time we just need to change the location there only and will work for all the screens where it has been used. One more advantage of doing this in screens is the purpose of resuability of existing screens which we can use from other components, but it decorate that screen by your decorator only as the same pattern is used at all the places and in all the components to show the mainDecoratorLocation. Concentrate on this when you add decorators in your screens in not too distant future with the development of this application.

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