It is a concept and not limited to any programming language or platform.
The main element of SOA is the service which is a piece of software functionality designed to complete a specific task such as retrieving specified information or executing an operation.
In this way software components are allowed to behave as separate, autonomous, loosely coupled network-accessible units.
SOA and Microservices are very similar concepts. Their main difference is the scope.
While SOA is an enterprise-wide approach to architecture, microservices is an implementation strategy within application development teams.
With the help of Tibco Active Matrix we cover all aspects of heterogeneous Service Oriented Architecture (SOA).