The present invention is an expert matching method and apparatus for managing communications between an expert having particular qualifications and an end user seeking a solution to an expert request. In a preferred embodiment, the apparatus of the present invention includes a controller having a database...http://www.google.com.hk/patents/US5862223?utm_source=gb-gplus-share專利 US5862223 - Method and apparatus for a cryptographically-assisted commercial network system designed to facilitate and support expert-based commerce
