Description of what is middleware (middleware) in plain English

We have heard too much about middleware, but what is middleware? Why do we say something like JBoss is middleware? Read this article. This article uses four points to summarize what the middleware is. The current SOA/ESB is actually the embodiment of middleware.

Four key points of middleware:

1. First, it's mostly invisible.

2. Second, it provides a standard way of doing things.

3. Third, it ties together parts of complex systems.

4. Fourth and finally, it lets you worry about other things.