... Object access is a tool that is feasible for interoperability of telescope operations. ... These subsystems need a common interface so that the observers can write scripts to control the complete observing flow in a high-level language. ... The operating system is taking care of time-sharing between the servers, and the SOAP library takes care of the message queuing. ... Therefore, there is a computer that is implementing SOAP server wrappers to the TCS RPC calls that operate the telescope itself. ...