Abstract: A method, performed by a computer device, may include identifying a query in a query language; converting the identified query into one or more request commands, each of the one or more request commands being in a particular request and response language; and sending the one or more request commands to one or more repliers, wherein the one or more repliers are referenced by the identified query. The method may further include receiving one or more responses from the one or more repliers, each of the one or more responses being in a particular request and response language, and converting the received one or more responses into a relation in the query language, wherein the relation corresponds to an evaluation of the query.

Abstract: A method includes identifying a first graphical application window and a second graphical application window. The first graphical application window and the second graphical application windows are each associated with separate applications. An attachment relationship may be defined between the first and second graphical application windows. A command may be received to manipulate the first graphical application window. A correlating command then manipulates the second graphical application window according to the attachment relationship between the first window and the second window, such that a spatial relationship between the first and second graphical application windows is maintained.