Skip to content

Latest commit

 

History

History
44 lines (28 loc) · 1.15 KB

middleware_model.md

File metadata and controls

44 lines (28 loc) · 1.15 KB

Middleware

Middleware model

Middleware is tech "glue" connecting components of a distributed system. The middleware model is

middleware

Middleware

Components of middleware include

  • The network services include things like TCP/IP

  • The middleware layer is application-independent s/w using the network services.

  • Examples of middleware are: DCE, RPC, Corba

  • Middleware may only perform one function (such as RPC) or many (such as DCE)

Middleware examples

Examples of middleware include

  • Primitive services such as terminal emulators, file transfer, email
  • Basic services such as RPC
  • Integrated services such as DCE, Network O/S
  • Distributed object services such as CORBA, OLE/ActiveX
  • Mobile object services such as RMI, Jini
  • World Wide Web

Middleware functions

The functions of middleware include

  • Initiation of processes at different computers
  • Session management
  • Directory services to allow clients to locate servers
  • Remote data access
  • Concurrency control to allow servers to handle multiple clients
  • Security and integrity
  • Monitoring
  • Termination of processes both local and remote