B2B Middleware refers a translation layer between multiple applications incorporating disparate technologies. It is usually a suite of tools, services, and adapters geared toward application integration. These including message-oriented middleware and database middleware. B2B Middleware data and systems require multiple points of access and integration One of the most popular forms of B2B Middleware is the Enterprise Service Bus (ESB) or “ESB engine.”
B2B Middleware’s job is to route data...
It is expensive. It is more than 100K for support. You pay for support on top of the standard licensing, which is on a yearly basis.
I don't know about pricing and licensing.