29. The method of claim 28 wherein at least some of the plurality of computerized importer cells reside on different computers, the method further comprising configuring the plurality of computerized importer cells to communicate over an electronic network.
29. The method of claim 28 wherein at least some of the plurality of computerized importer cells reside on different computers, the method further comprising configuring the plurality of computerized importer cells to communicate over an electronic network. 30. The method of claim 29 , further comprising configuring an asynchronous event bus to provide communications among the plurality of importer cells by delivering event messages to importer cells of the plurality of importer cells.