26. The method according to claim 22 , wherein the integral value of the metric distance between two IOs is defined as ρ int ⁡ ( T 1 , T 2 ) = ∑ r 1 ∈ T 1 ⁢ ∑ r 2 ∈ T 2 ⁢ w ⁡ ( rel ⁡ ( r 1 , T 1 ) ) ⁢ w ⁡ ( rel ⁡ ( r 2 , T 2 ) ) ⁢ ρ ⁡ ( T 1 , r 1 , T 2 , r 2 ) , where rel(r, T) is the relevance function equal to the distance from the root to the r node in the T tree, and the distance is a path length measured as the number of arcs from the tree root to its r arbitrary node, and w is relevance weight indicating the significance of the node positioning in the tree structure during calculation of the degree of information similarity between two IOs.
22. The method for adding information about new objects of an arbitrary application domain to the system for storage and retrieval of a plurality of information objects according to claim 1 , comprising the steps of: a) organizing information about new objects in a tree structure thereby creating an information object (IO) in the connected logical storage network of said system, b) associating with each created IO a program agent designed for performing operations on said IO, and a list of links to other IOs on the logical storage network, creating thereby an active unit of storage, c) comparing the IO incorporated into every created AUS with the plurality of other IOs already presented on the connected logical storage network, and determining the metric distance between the IOs based on the comparison results, d) creating for a plurality of those AUSs which IOs are closest by metric distance to the added IO, logical connections to the AUS comprising the added IO, e) for all links in the list of links of the added AUS, recording metric distances to all information objects corresponding to the links, and f) saving the added AUS on one of the computing devices of said system, wherein the IOs are electronic documents in the form of XML documents.