We introduce the formal framework of a generalized interaction scheme for information access between users and information sources. Within this framework we describe on interaction manager which support more complex interaction schemes than those that are supported by existing systems. including query by example, answere enlargement/ reduction, query relaxation/ restriction, index relaxtion/construction, "relevance" feedback and adaption facilities. We give the foundations of this integration manager from a mathematical points of view, in terms an abstract view of an information source