Abstract: Disclosed is a method and system for knowledge and information sharing. Disclosed embodiments include a central electronic information network and a plurality of portable client devices for use by mobile personnel in the field. The electronic information network has a central database that contains data objects in the form of logic trees representing the cumulative knowledge and information regarding a plurality of situations that are expected to be encountered by the mobile personnel while in the field. These logic trees represent diagnosing algorithms, survey questions, and/or troubleshooting instructions that can be given to help field personnel recognize appropriate question sets to use in a particular situation and how to ask those questions in a logical manner. To provide access to the logic trees whenever necessary, logic tree data objects are also stored electronically on each of the portable client devices.