A simple definition of the software interface (turn around and think it's a good metaphor)

Software interface, in fact, refers to the software data interface.
For example a software is a financial system, B software is a deposit system, because B software can not do more complex financial management, so now customers need to B in the relevant procurement, sales and other financial related information to a system to deal with. Because A, b two software is developed by different developers, so the data structure will have a great difference, and make a can not directly use B data, this time I need to pass a certain data interchange format, b data transfer to a. The data import/export software module is called A and B financial data software interface according to a certain data interchange format.

A simple definition of the software interface (turn around and think it's a good metaphor)