13.6 Softbots construct and execute plans in software environments. One typical task for softbots is to find copies of technical reports that have been published at some other institution.

Suppose that the softbot is given the task "Get me the most recent report by X on topic Y.

Relevant actions include logging on to a library information system and issuing queries, using an Internet directory to find X's institution, sending email to X; connecting to X's institution by ftp, and so on. Write down formal representations for a representative set of actions, and discuss what sort of planning and execution algorithms would be needed.