What are the server specific middle wares?

Server specific middle wares. Their role in e-commerce. Additional features needed by e-commerce server.

Middleware is the term often used to define the application or business logic present in an application server. Unfortunately, the similar term is also used to define generic services. For example, to communicate, the three tiers may use a messaging system. This is true middleware in the sense that it functions among, or in the middle of the three tiers. When someone uses the term middleware, be sure you know what particular meaning is intended.