Middleware (contd.)

Middleware

Object-Oriented

Example: CORBA

Iona’s OrbixWeb

Message-Oriented

(MOM)

Example: QMP

Dist. Trans.

Proc. Monitors

Ex: Encina

RPC-based

Example: DCE

DB Connectivity-

Based

Example: EDA/SQL

Publish/

Subscribe

Example: listserves

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