W$4.$A$3$b$.$Communication of data and information exchange is a vital part of any companies and organizations today. Communication can be done in many ways and the alternatives varies in terms of efficiency. Electronic Data Interface $($EDI$)$is an application available for most companies. What is an EDI?

$-$Unstructured message structure

$-$Industry standard for information exchange

$-$A method for automatic data exchange between organizations

$-$Middleware mainly used by small companies