3.6 Previous Application Integration patterns

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3.6 Previous Application Integration patterns

Table 3-3 provides an overview of the relationship between the previous Process-focused Application Integration patterns and the revised Process-focused Application Integration patterns presented in this chapter:

• Direct Connection is retained for application coordinated requests.

• Transactional is now a quality of service. Transactionality may apply to all of these patterns, so it is applied as a quality of service rather than being a separate pattern.

• Aggregator/Broker are combined into Broker for broker coordinated requests.

• Managed Process is split into Serial Process and Parallel Process for process managed coordinated requests.

• The read-only versus read/write classification used with old patterns is not used with the new patterns, since:

  • For Transactional and Managed Process, read-only is not applicable.

  • For Direct Connection, the same pattern applies in both cases.

  • For Aggregator/Broker, the observed patterns are identical.

Table 3-3: Relationship to old Process-focused Application Integration patterns

	Old Pattern		New Pattern
	Information Request (R/O)	Processing Request (R/W)
Application Coordinated	Direct Connection	Direct Connection	Same
Transactional Coordinated	Not applicable	Transactional	Now a Quality of Service
Broker Coordinated	Aggregator	Broker	Broker
Process Managed Coordinated	Not applicable	Managed Process	Split into: Serial Process Parallel Process

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