35. The method according to claim 27 , wherein the search mask is generated using the same notations as those used in information objects stored in the repository; wherein each node in the structure of sought information objects is paired with a node in the structure of the search mask; the data value contained in a node of the mask is a partial search criterion for IO; combination of all partial search criteria provides a complete criterion for mask search of information objects.
60. The method according to claim 35 , wherein partial search criteria may be single-valued and multi-valued.