Abstract: Systems and methods for intelligent and adaptive testing of a blockchain application to identify compliant code modifications. The method includes the steps of recording requests to and response from a baseline blockchain application receiving the requests from a plurality of application users. The same responses are input into a shadow blockchain application that includes a number of switch selectable new code segments. The switch selectable new code is enabled and disabled according to a pattern. The responses from the baseline application are compared against the response from the shadow blockchain application from when error vectors are generated. These error vectors are used to train a learning machine to determine which new code segments result in response errors or aberrations.

Abstract: A vehicle multimedia system simplifies a user's interaction with the system. A user may access a specific media unit by actuating a switch corresponding to a media unit. A preference unit detects the user's selection of the media unit and selects an end item based on a programmed criterion. The preference unit may automatically activate the end item. The preference unit may be overridden by the user when a switch corresponding to the selected media unit is actuated multiple times. The preference unit may also manage data lists and data packets that store the information used for the criterion comparison.