Lecture 2 — part 5
Middleware
- Definition
- Middleware is a set of common business-unaware services that enable applications and end-users to interact with each other across a network
- Distributed system services that have standard programming interfaces and protocols
- Services sit in the middle above OS and network software
- and below industry-specific applications
- Examples
- ftp, email
- web browsers
- database drivers and gateways
- CORBA (Common object request broker architecture)
- Microsoft .NET
- Java RMI, JINI, Javaspaces, JMS
- Web services software — SOAP, REST
Functional View of Middleware
- Information exchange services
- Application-specific services
- Specialized services
- e,g,m transaction services and replication services for distributed databases
- group services for collaborative applications, specialized services for multimedia applications
- business-unaware
- Management and support service
- needed for locating distributed resources and administrating resources acorss the network