OOP (Object-Oriented Programming) was coined by Alan Kay to define the programming way driven by Smalltalk. In his mind, the approach was to code objects as computing units encapsulating local state-process and communicating between them by messaging to perform higher coarse-grain computation. It was in the 70's.
In another way, there were different attempts to define a communication model between different programs to share information in order to perform higher level computation. We passed from the simple client/server model to the actual emerging SOFEA model (Service-Oriented Front-End Architecture) that extends the service-oriented architecture principles up to the client side.
As we can see, the two seem to be related.