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question about a J2EE based N-tier model

 
Timber Lee
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what tier can be in J2EE based N-tier model?
EJB Integration Tier,
Legacy Connectivity Tier,
EIS Integration Tier,
JCA Tier
[ February 22, 2003: Message edited by: Timber Lee ]
 
Thomas Hofmann
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Hi Timber,
EIS (Enterprise Information System) Integration tier. EIS can be DB, Legacy Application (CRM, ERP, ...).
I've never heard about the other expressions.
Thomas
 
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