Difference between ESOA and SOA Middle ware

Hi All
Can anybody explain me the difference between ESOA and SOA Middle Ware?
Thanks
SIM

Hi SIM,
SOA and ESOA are not middlewares.
They are architectures.
SOA is Service Oriented Architecture
ESOA is same as SOA with some business semantics which is initiated by SAP to reduce the complexity of business process and problems.
Middleware is any tool which is used to integrate different technologies and platform like XI .
XI is a middleware tool which supports SOA and ESOA. I.e by using SOAP adapter you can expose web services which can have business meaning also.
Hope this helps.
Regards,
Piyush

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