Abstract: The invention provides a knowledge sharing method for supporting mobile workers before, during and after visiting a location, organisation or individual as part of their day to day activities. It achieves this through a knowledge management system which has a database for storing knowledge specific to a plurality of entities such as customers, maintenance locations, client organisation or individuals, for example. The database provides stored knowledge to a user in response to said user providing an identity of one of said plurality of entities. The retrieved knowledge being provided to the user in audio form on a voice enabled interface between the user and the system. The retrieved knowledge is provided to said user from the knowledge stored in the database specific to that entity. This knowledge may be based on information provided by other users of the knowledge management system.