Correlation & Multi message processing?

[Former Member]

Hi,

I have some queries about <i>Correlation</i> in XI.

1. What is correlation in XI ?

2. How is Correlation different from Multi message mapping ?

Thanks,

Snehal.

[Former Member]

Thanks a lot for your valuable inputs...!!

[bhavesh_kantilal]

Hi,

Correlation as the name implies is used to correlate messages in a BPM.

Consider a case when you have multiple Receive Steps inside a BPM.

You receive a message 1 and are waiting for message 2. Before message 2 beacomes available, you get another Message 1 and so, have multiple BPM's now waiting for Message 2.

Now, when Message 2 is available, how do you decide to which BPM instance this Message belongs? Correaltion helps insuch cases to corelate the messages.

Multi Mapping is any mapping that involves N numbver of Source / target messages or both.

Regards,

Bhavesh

[Shabarish_Nair]

<i>1. What is correlation in XI ?</i>

>>>>

/people/sravya.talanki2/blog/2005/08/24/do-you-like-to-understand-147correlation148-in-xi

Ref checklist - http://help.sap.com/saphelp_nw04/helpdata/en/6d/94364296f1b26be10000000a155106/content.htm

Correlation is used in BPM to relate messages say based on a particular field. In case the correlation is broken a new instance of BPM is executed.

<i>2. How is Correlation different from Multi message mapping ?</i>

>>>

multi mapping is convertion of N message to 1 or 1:N or N:M

Further reference:

BPM involved:

/people/sudharshan.aravamudan/blog/2005/12/01/illustration-of-multi-mapping-and-message-split-using-bpm-in-sap-exchange-infrastructure

/people/narendra.jain/blog/2005/12/30/various-multi-mappings-and-optimizing-their-implementation-in-integration-processes-bpm-in-xi

Without BPM:

/people/jin.shin/blog/2006/02/07/multi-mapping-without-bpm--yes-it146s-possible

[Former Member]

Hi ,

Check the following...

Correlation :

/people/sravya.talanki2/blog/2005/08/24/do-you-like-to-understand-147correlation148-in-xi

Multi message mapping :

/people/narendra.jain/blog/2005/12/30/various-multi-mappings-and-optimizing-their-implementation-in-integration-processes-bpm-in-xi

sekhar