Abstract: Mechanisms are provided for collecting user feedback information from sensors associated with user devices in accordance with smart contract rules. For an event context for an event, a provider portion of a smart contract is generated. The event context indicates an occurrence within the event that is detected through processing patterns of event data collected for the event, and the provider portion specifies a type of user feedback that is of interest to a provider. For the event context, a user portion of the smart contract is generated, where the user portion specifies a type of user feedback that a user of a user device permits to be shared with the provider. A smart contract comprising the smart contract rules is generated by combining the provider portion with the user portion. Collection of user feedback information from the user device is controlled according to the smart contract data structure.