... 141Implementing the broker business pattern 142Implementing the router business pattern 143 Service- oriented integration scenarios 144Implementing the process integration business pattern 144Variant ... each another. • Business to Business (B2B): B2B means the external integration of business partners', customers', and suppliers' processes and applications. • Business to Consumer ... made between application-to-application (A2A), business- to -business (B2B), and business- to-consumer (B2C) integration. Portal, function, and data integration can be classied on the basis of tiers....