1. A method for assessing a confidence level that an operator of a client computing device interacting with a server is a human being rather than an autonomic computer application, the method comprising: a) a single user of a client computing device requesting data from a server; b) the server presenting data issued by the server to the client computing device; c) monitoring at least some data generated by the user at the client computing device in response to the issued data; d) comparing the monitored data to model data relating to human interaction with or in response to the issued data; and e) generating a value that represents a confidence level that the monitored data is a result of human interaction on the client computing device rather than that of an autonomic user with or in response to the issued data.