Patterns: Broker Interactions for Intra- and Inter-enterprise

30 Broker Interactions for Intra- and Inter-enterprise

򐂰 Exposed Broker application pattern

and its Exposed Router variation

Allows a single interaction from the source application to be switched, split,

and joined to multiple partner target applications concurrently.

򐂰 Exposed Serial Process application pattern

and its Exposed Serial Workflow variation

Allows a single interaction from the source application to execute a series of

interactions with multiple partner target applications.

Each of the Extended Enterprise pattern names are prefixed with

Exposed to

highlight that these patterns are concerned with exposing applications outside of

the enterprise boundaries.

These three Application patterns for Extended Enterprise are summarized in

Figure 2-13. One dimension shows support for concurrent interactions to multiple

target applications in parallel. The other dimension shows support for

non-concurrent interactions to multiple targets in series. Here the top right-hand

corner has been left blank to indicate that Parallel Process implementations are

currently not widely implemented in Extended Enterprise scenarios. As the

process composition technologies mature, we expect to see more widespread

use of the Exposed Parallel Process application pattern and its Exposed Parallel

Workflow variation.

Figure 2-13 Classification of Extended Enterprise patterns

2.6 Summary

This chapter introduces fundamental concepts in Process Integration that bridge

the gap between various disciplines. It presents a set of notations and

Exposed Serial Process

Variation: Exposed

Serial Workflow

Exposed Direct Connection

Variations: Exposed

Message/Call Connection

Exposed Broker

Variation: Exposed Router

Parallel Interaction

Serial Interaction

Yes

No Yes

No

Chapter 2. Fundamental concepts in Process Integration 31

techniques that can be iteratively applied to a complex Process Integration

scenario, where each iteration refines and further details the integration solution.

It also introduces the key set of QoS concerns that must be addressed in

Process Integration efforts. Finally, this chapter presents an interaction

classification framework that is used to capture the commonly occurring

Application patterns in the field of Application Integration and Extended

Enterprise.

32 Broker Interactions for Intra- and Inter-enterprise