A data processing system includes a transaction bus, a console application in communication with the transaction bus, and a view predictor subsystem in communication with the transaction bus. A call for visual information is received at the transaction bus. Prior to returning a result to the user application in response to the call: a likelihood that the visual information will be viewable within a viewport of a user application is determined by the view predictor subsystem, the console application provides to the transaction bus a set of potential sources of the visual information, the transaction bus converts associated data from the potential sources into a common form of measurement using the likelihood, and the transaction bus selects one of the potential sources of the visual information to be the result based on the data converted into the common form of measurement. The result is returned to the user application.