Abstract: The invention relates to a method of enabling a first user and a second user to obtain collaborative content. The method comprises steps of obtaining a plurality of content preference data comprising a first content preference data (121) of the first user and a second content preference data (131) of the second user, obtaining dependency data (114, 114a) indicating dependency of the first content preference data on the second content preference data, and using the plurality of content preference data for a selection of the collaborative content under control of the dependency data. The invention also relates to a collaborative device for enabling a first user and a second user to obtain collaborative content.

Abstract: The invention relates to a method of enabling a first user and a second user to obtain collaborative content. The method comprises steps of obtaining a plurality of content preference data comprising a first content preference data (121) of the first user and a second content preference data (131) of the second user, obtaining dependency data (114, 114a) indicating dependency of the first content preference data on the second content preference data, and using the plurality of content preference data for a selection of the collaborative content under control of the dependency data. The invention also relates to a collaborative device for enabling a first user and a second user to obtain collaborative content.

Abstract: The invention relates to a method of presenting media content to a user or group of users, wherein the media content resides on a storage system and the method comprises the steps of defining a query to retrieve the media content, which query is appropriate for the user's situation by using context information; retrieve the queried media content from the storage system; and presenting the queried media content to the user or group of users.

Abstract: The invention concerns a method and device for presenting, managing and exploiting graphical queries in data management systems. In the method queries in data management systems may be handled graphically in a simple fashion to form a query formalism incorporating objects and their relationships, and including specialization relationships between types of objects. The method comprises defining in a graphical format a semantic model defining the structure of data within a database and using said semantic model to define a database query, the method being characterised in that the semantic model comprises a type graph comprising types of objects, and attributes and specializations linking types to one another to define relationships between said types.