电子州技女学 Software Architecture Design Pattern University Electronic Scienceand eco 3.Middleware Systems Definition:Middleware is software that enables interprocess commmnication. It provides an API that isolates the application code from the underlying network communication formats and protocols (FAPs). -Middleware systems implement the various forms of distribution transparencies by creating the illusion of unity and homogeneity within the network,what is called in other words the "single-system image". +They act as glue between autonomous components and processes (e.g.,clients, server)by providing generic services on top of the OS. Com ponent Com ponent Com ponent Com ponent Com ponent Com ponent Middleware Network O perating System Com ponent = com ponent Hardw are Mid dlew are Host Network O perating System Hardware Ne tw ork Host Software Architecture and Design Pattern 6Software Architecture & Design Pattern Software Architecture and Design Pattern 6