B2B Web services refers to the IT usage scenario where a form of Web services _ SOAP, WS-* or Web-native implementation, such as representational state transfer (REST) or plain old XML (POX) — is deployed in some combination of cloud and B2B (multienterprise) integration projects. Web services are used as a multienterprise extension of internal service-oriented architectures (SOAs), or in lieu of more traditional approaches to multienterprise integration, such as Applicability Statement 2 (AS2), electronic data interchange (EDI) and FTP.