RPC
- Remote Procedure Call
- Asynchronous and Synchronous
- Client make call to procedure running in remote system
Message Oriented Middleware
Message sent to client is collected and stored until they’re acted upon
SQL-Oriented Data Access
Between application and database
Embedded Middleware
Communication service between embedded application and real time operating system
What is middleware?
Software layer that lies between the operating system and the application on each site of the system
Middleware Functions:
Hiding distribution
Make of many part running in distributed location
Hiding the heterogeneity of various hardware components, operating system and communication protocol
Provide uniform, standard, high level interface to the application developer and integrator
Application can easily be composed, versed, ported and made to interoperate
Supply set of common service
Perform various general purpose functions such as
- Avoid duplicating effort
- Facilitate collaboration between application