23. A system comprising: a plurality of processing systems, wherein each processing system of the plurality of processing systems comprises a respective application that processes invoice adjustment information, the invoice adjustment information having a respective application-specific data object format, and each processing system of the plurality of processing systems is coupled to a communications protocol adapter, wherein the communications protocol adapter is configured to receive configuration information from the processing system; and an integration server coupled to each processing system of the plurality of processing systems, wherein the integration server translates invoice adjustment information from a first application-specific data object format to a common invoice adjustment data object format, wherein the common invoice adjustment data object format comprises at least one relationship data element, wherein the relationship data element specifies at least one relationship between a plurality of entities, the relationship data element comprises a plurality of elements, a first element of the plurality of elements corresponds to a first entity of the plurality of entities, a second element of the plurality of elements corresponds to a second entity of the plurality of entities, at least one custom data element, wherein the custom data element facilitates customization of the common invoice adjustment data object format, an identification data element, an invoice adjustment base data element, a billing data element, a status data element, and a list of invoice adjustment line item details data element; and the integration server comprises: a communications transport layer configured to receive invoice adjustment information; a first storing unit configured to store transformation information; a second storing unit configured to store defined business processes; and a business process controller configured to execute the business processes, wherein the execution is in response to predefined events.
23. A system comprising: a plurality of processing systems, wherein each processing system of the plurality of processing systems comprises a respective application that processes invoice adjustment information, the invoice adjustment information having a respective application-specific data object format, and each processing system of the plurality of processing systems is coupled to a communications protocol adapter, wherein the communications protocol adapter is configured to receive configuration information from the processing system; and an integration server coupled to each processing system of the plurality of processing systems, wherein the integration server translates invoice adjustment information from a first application-specific data object format to a common invoice adjustment data object format, wherein the common invoice adjustment data object format comprises at least one relationship data element, wherein the relationship data element specifies at least one relationship between a plurality of entities, the relationship data element comprises a plurality of elements, a first element of the plurality of elements corresponds to a first entity of the plurality of entities, a second element of the plurality of elements corresponds to a second entity of the plurality of entities, at least one custom data element, wherein the custom data element facilitates customization of the common invoice adjustment data object format, an identification data element, an invoice adjustment base data element, a billing data element, a status data element, and a list of invoice adjustment line item details data element; and the integration server comprises: a communications transport layer configured to receive invoice adjustment information; a first storing unit configured to store transformation information; a second storing unit configured to store defined business processes; and a business process controller configured to execute the business processes, wherein the execution is in response to predefined events. 25. The system of claim 23 , wherein the integration server is further configured to: receiving additional invoice adjustment from a second processing system of the plurality of processing systems, wherein the additional invoice adjustment information is in a second application-specific data object format; translating the additional invoice adjustment information into the common invoice adjustment data object format; and storing the invoice adjustment information in the common invoice adjustment data object format and the additional invoice adjustment information in the common invoice adjustment data object format in a common invoice adjustment data object, wherein the common invoice adjustment data object is in the common invoice adjustment data object format.