Difference between MDM adaptor and File adaptor?

Hello All,
Could any one light on the difference between PI Adaptor and File adaptor?
Thanks
Rajeev

Hi,
>>>Could any one light on the difference between PI Adaptor and File adaptor?
for MDM <= 5.5
there was no difference as file adapter was the MDM adapter
it changed with the latest version as Shabz mentioned
Regards,
Michal Krawczyk

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Thank Dirk,Anil for your wonderful answer.
After study these docs on sap.com and your reply,I have other questions to ask:
1. If I use MDM as a Enterprise's Data center repository,Is that mean I can give up other database such as Oracle,SQL Server,and build new application or shift those regacy non-SAP applications on MDM gradually,you know,if I retain these DB,I should syncharonize them cautiously,and it can not avoid "dirty data" between heterogeneous systems.
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3.consider such a scenario,I need SAP R/3 data to share with other non-SAP system,besides XI,should I need MDM,using MDM to implement data management and sharing.
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http://www.b2bgurus.com/
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Difference between MDM adaptor and File adaptor?

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