1. A computer-readable storage medium comprising: multiple software programs, each software program comprising a corresponding sequence of instructions to cause a computer to store in memory, a plurality of structures of information generated during execution of said each software program by said computer; wherein multiple structures in said plurality comprise (a) a predetermined symbol common across said multiple software programs, (b) an identifier of information in an unstructured form, and (c) metadata indicative of location of a program-specific attribute within said information, said program-specific attribute comprising a name and a value.