SOA
From DataFlex Wiki
Service oriented architecture
Service oriented architectures allow for easy system integration. Today , when we talk about Service oriented architectures , then we typically talk about systems that allow for integration using Web Services using SOAP and WSDL - but other scenarios also apply - more modern systems apply techniques of REST architectures and facilitate data exchange using JSON.
Using it from Visual DataFlex
Do you need an easy way to expose your Visual DataFlex code to another system? Then create a Web Service , that exposes your functionality.