Patent ID: 8224770

Claim:
A method of operating a computer system, the method comprising: inputting into the computer system, during a set-up mode of a data availability manager (DAM) program, data that reflects a dependency rule relationship, the dependency rule relationship indicating that a second data item to be generated by a second application program cannot be generated until a first data item to be generated by a first application program is available; running the first application program on the computer system; running the second application program on the computer system; running the DAM program on the computer system; indicating by the first application program to the DAM program that the first data item is available; the DAM program determining that the second data item is dependent for processing upon availability of the first data item, said determining including the DAM program referring to said data that reflects said dependency rule relationship; the DAM program indicating to the second application program that the second data item is ready for processing; and the second application program processing the second data item in response to the DAM program indicating that the second data item is ready for processing, wherein the second data item is a report of securities holdings, and the processing of the second data item by the second application program includes generating the report of securities holdings; wherein: the second application program requests the DAM program to report a status of the second data item; and the DAM program indicates to said second application program, in response to said request, that the second data item is ready for processing.