1. A method comprising: applying a first classification procedure to received audio and/or visual information, to identify a type of said received information from among plural possible types; applying a second classification procedure to received second information, to identify a scenario, from among plural possible scenarios, the identified scenario comprising the confluence of at least three circumstances, the received second information being different than said received audio or visual information; and activating one or more recognition modules based on outputs from the first and second classification procedures; wherein at least one of said acts is performed by hardware configured to perform such act(s).