HIMSS Word of the Day #167: Service-Oriented Architecture (SOA)
Service-oriented architecture (SOA) is an approach to building software from reusable, loosely coupled services that communicate over a network through defined interfaces. This post explains SOA concepts, web services such as SOAP and WSDL, how SOA evolved into REST APIs and microservices, examples in healthcare from IHE profiles to FHIR, and governance considerations.