Database Reference
In-Depth Information
Designing orchestration
Orchestration is the process of combining BPEL services. Defining the style of inter-
action with the client is the first step of designing a BPEL service. Always consider
using the Scope activity to group a set of activities and manage the BPEL variables'
scope. Define the XML schemas (XSD) for the message structure after deciding the
client interaction style.
As shown in the following figure, the
Partner Link
on the left-hand size contains the
service interface (WSDL) to communicate with client applications or other compon-
ents. The client applications can use the WSDL to invoke the BPEL service.
The
Partner Link
contains the service interface (WSDL) for BPEL services to invoke
other external services:
The Oracle JDeveloper's design page has three different swim lanes, as shown in the
next screenshot. These swim lanes are as follows:
• The left-hand side swim lane is used to define partner links for communic-
ation with clients
• The right-hand side swim lane is used to define partner links for commu-
nication with external services
• The center swim lane is used to define the process
