Abstract: The present invention may be said to consist in a method, system (1) and/or of configuring one or more mobile devices (4) to provide one or more user interfaces to at least one database on a remote computer system. An index of one or more shadow fields (e.g. 32, 35), each shadow field being associated with one or more of data fields in the at least one database can be defined. Input can be received defining a user interface (e.g. 64) to the at least one database for deployment on a mobile device. Configuration data can be generated specifying the user interface, the configuration data comprising data specifying one or more of the shadow data fields associated with the user interface. The configuration data is adapted to configure a mobile device (4) as a user interface to the at least one database.