Chapter 4: Extended Enterprise

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Overview

The Extended Enterprise business pattern, which is also known as the Business-to-Business or B2B pattern, addresses the interactions and collaborations between business processes in separate enterprises. This pattern can be observed in solutions that implement programmatic interfaces to connect inter-enterprise applications. In other words, it does not cover applications that are directly invoked via a user interface by business partners across organizational boundaries.

In Table 4-1 you can see some cross-industry examples of the Extended Enterprise pattern.

Table 4-1: Cross-industry examples

Service	Examples
Buy Side	Direct Procurement (SCM) Indirect Procurement (MRO) Supply chain execution
Sell Side	B2B e-commerce (Distributors)
Trading Partner Modernization	EDI Modernization
Exchange Participation	Private e-exchanges Public e-exchanges

In Table 4-2 we list some industry-specific example applications that can be implemented though the Extended Enterprise pattern.

Table 4-2: Industry-specific examples

Industry	Example applications
Manufacturing	Supply chain planning Supply chain execution Vendor-Managed Inventory
Travel	Checking flight or room availability Making or modifying reservations
Retail	Checking supplier inventory Placing replenishment orders Paying suppliers automatically
Financial	Transferring payments Checking account balances Obtaining credit information Loan Origination Processing securities
Telecommunication	OSS Integration Cross organization order management Managed service provider interconnect

Note 

There are broad similarities between the Application Integration patterns and the Extended Enterprise patterns. The differentiation is mainly in the way Quality of Services aspects affect the Runtime patterns.

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