Blue Prism Interview Questions - RPA

Q: How to perform surface automation technique?

In order to integrate with a thin client application we must redefine the application surface as a series of rectangles or regions.

Launch the application from Application Modeller if you haven’t already done so.

Select the Calculator Screen element and click the Identify Element button.

Press the ALT key to cycle through the different spy modes, stopping at Region mode.

Move the mouse over the application to see that it highlights elements much in the same way as Win32

Using the identification tool select the entire Calculator application (as above) and CTRL left click to open the Region Editor.

Q: What is sendkeys in thin client applications?

In controlling the application we have learnt how to create regions and use the mouse to click on the region. Typically however a user will need to also send keystrokes to the application.

Normally in Blue Prism you would use the Write stage to send data to an application. This is not possible with a thin client application though, (remember it is a virtual application that does not really exist on the local machine) so we must send keystrokes to the application. To do this we use the Global SendKeys method.

Q: Exception bubbling:

It is a concept ofhandlingthe exception.  When and where exception will be handled?

Many times when you catch exception, do not want them to be handled during that time. Rather you would like to propagate the same to the caller and let the caller handle the same. For such kind of scenarios we use exception bubbling.

For instance if you have raised exception in a business class, you would probably like to bubble it to the UI so that it can be displayed in a message box for the end user.

Q: BP Limitations:

OCR. It can’t identify or recognize the signature related images.

Q:   Reading of HTML content dynamically using BP. If we have dynamic table in web page, how will you identify the content?  

It can be handled in the Application Modeller itself. Verifying path property of selected HTML element and check for “<tr><td>” tags in the Application Modeller.