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3.2 Integration Designer best practices
The following best practices pertain to the development of well-performing solutions through
the Integration Designer.
3.2.1 Using share-by-reference libraries where possible
Often, definitions of interfaces, BOs, data maps, mediation subflows, relationships, roles, and
web service ports must be shared so that resources in several modules can use them. These
resources are stored in the library. Libraries can be deployed in several ways:
► With a process application
► With the dependent module
► Globally
You can make your choice in the dependency editor. If you associate a library with a process
application, then you select the application in the editor. The library is shared within the
deployed process application, meaning only one copy is in memory. We call this type of library
a share-by-reference library. The share-by-reference library is a feature that was introduced
in Business Process Manager V7.5.
If you choose to deploy a library with the module, the deployment action creates a copy of the
library for each module when the module is deployed. This type of library is known as a
share-by-value library. Deploying the library with the module is the default setting when the
library is not associated with a process application.
More details about Business Process Manager V8.0 library types is in “Libraries” in the
information center for IBM Business Process Manager, Version 8.0, all platforms:
http://pic.dhe.ibm.com/infocenter/dmndhelp/v8r0mx/index.jsp?topic=%2Fcom.ibm.wbpm.
wid.main.doc%2Fnewapp%2Ftopics%2Fclibrary.html
3.2.2 Ensure content in Toolkits is needed for multiple applications
Toolkits are copied into each process application that uses them. As such, ensure that a
Toolkit’s content is only artifacts that are needed by multiple process applications to reduce
the size and complexity of the PC Repository. Include process application-specific content
only in the process application itself.
3.2.3 Advanced Content Deployment considerations
Content included in a Process Application (PA) or Toolkit that is authored with the Integration
Designer is considered Advanced Content. When the tip or snapshot of a PA or Toolkit is
activated or deployed, Advanced Content is processed over a different path than Standard
Content. Deployment of Advanced Content often takes much longer to deploy than Standard
Content. This is because Advanced Content is packaged into SCA modules and libraries, and
deployed as Business Level Applications (BLAs) and J2EE EARs on the Process Center or
Process Server. Because each deployed BLA and EAR consumes a non-trivial amount of
resource on the server (memory, disk space, CPU cycles), Advanced Content deployments
should be done the minimum number of times that is practical. Also, Snapshots and PA or
Toolkit Tips that are no longer needed should be proactively cleaned up by deactivating and
undeploying their Advanced Content. These topics are discussed further in the remainder of
this section.
28 IBM Business Process Manager V8.0 Performance Tuning and Best Practices