1. C:\unocourses\4350\slides\DefiningThreads
Middleware
Spring/2002
Distributed Software Engineering
C:\unocourses\4350\slides\DefiningThreads

2. C:\unocourses\4350\slides\DefiningThreads
Middleware
Software systems used for integration.
Spring/2002
Distributed Software Engineering
C:\unocourses\4350\slides\DefiningThreads

3. C:\unocourses\4350\slides\DefiningThreads
Classification
RPC
Asynchronous message passing
Language specific: J2EE, smalltalk,C++
Language independent: CORBA, RMI-OPII
Proprietary vs. Standard-based
Embedded vs. Enterprise
Spring/2002
Distributed Software Engineering
C:\unocourses\4350\slides\DefiningThreads

4. Desirable characteristics
Flexible
High levels of performance
Simplicity. Too many configuration hooks frighten new users.
Tuning through configuration rather than through programming.
Facilitate internet-scale application-to-application integration.
Spring/2002
Distributed Software Engineering
C:\unocourses\4350\slides\DefiningThreads