BT.Message Filtering

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	BT	Message Filtering	Version:	0.1
	Document type:	Building Block Type	Owner:	J.A.H. Schoonderbeek

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Description

This Building Block Type belongs to Working Area Middleware (MW). This facility is capable of filtering messages based on rules and characteristics; filter results can include (combinations of) the following actions:

allow or prevent the message to continue it's trip to it's intended destination;
send a copy of the message to an alternative destination;
modify the message or it's header.

Matching may be possible on many characteristics, including (but not limited to):

sender or recipient;
the content of specific message fields, e.g. a priority field;
presence or absence of certain patterns in the message header or body;
adherence to messaging protocols.

This facility can thus be thought of as a special version of Traffic Filtering.

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