1. A computer-readable storage device having computer-executable instructions stored thereon for execution by an interface computer system, the computer-readable instructions comprising: a program module configured to: store an abstract representation of a mechanism that interfaces with a plurality of line of business (LOB) computing systems to return requested data in a plurality of batches, wherein the abstract representation of the mechanism comprises parameter metadata that defines at least one parameter utilized by the at least one of the plurality of LOB computing systems, filter metadata that defines at least one filter, and mapping metadata that defines a mapping between the at least one filter and the least one parameter, and wherein at least two of the plurality of computing systems utilize different interfaces; receive a request from a client for the data from at least one of the plurality of LOB computing systems; in response to receiving the request, utilize the abstract representation to identify the at least one parameter and utilize the at least one parameter to create a request to retrieve the requested data from the at least one of the LOB computing systems in the plurality of batches; and provide the requested data to the client in response to the request, the program module comprising an administrative object model for creating or editing the abstract representation utilized by the plurality of LOB computing systems.