Explain about the term Middleware.

Middleware is the term frequently used to explain the application or business logic present within an application server. Unfortunately, similar term is also used to explain generic services. For illustration, to communicate, the three tiers may employ a messaging system. It is true middleware into the sense that this functions among, or in the middle of the three tiers. While someone uses the term middleware, be make sure you know what exact meaning is intended.

Commerce Server is multi-platform server and media-independent software which enables the deployment of shopping sites and channels onto new media: interactive TV, internet and mobile.