O

objects, referencing with rules, 225

Office suite, new features in, 358

OnEvent method, using with e-mail activity, 217

OnStart method, WCF code in, 353–354

optimization phase of BPM, explanation of, 3

orchestration, role in BizTalk Server, 56

ordered workflows, support for, 5, 16

/out:<file> option in wcf.exe, description of, 48

output parameters, accessing for workflow communication, 102–103

OutputParameters, using with HelloWorld project, 25