A new conceptual design for service procurement networks may surpass existing limitations and bottlenecks. Thereby efficiency can be improved and transaction costs be reduced. To overcome existing limitations a design approach is presented that supports enterprise application integration based on master data and company-wide business process integration. Master data is harmonized with standardized data types and service-oriented architectures (SOA). eBuS-XML is introduced, in the proposed solution it serves as service-specific XML-based library for transaction data types, storage and integration of service e-procurement order processing.