If u have multiple receiver system then to determine the reciever u can use context object.....
the alternative of context objetc is X-Path...
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Here is a scenario where context objects were used for BPM
Get the details here:
Technical Context Objects :
A list of the Technical Context Objects names can be found here:
context objects are like variables in any programming language
say we declare String A = "context objects are like variables in any programming language"
So instead of the whole string "context objects are like variables in any programming language" we can ref. it as A anywhere in the program.
Similarly Context objects acts on XPATH. Suppose we have a xpath like /a/aa/aaa/aaaa/b/bb/bbb we can define it as a BBB = /a/aa/aaa/aaaa/b/bb/bbb using a context object.
alternative to xpath expressions.