A system and method for automatically selecting a translator to translate a component request using semantic typing is presented. A mediator receives a component request from a first component that requests to invoke a second component. The mediator retrieves a launch target identifier and a requester provided property type identifier from the component request. The requester provided property type identifier includes semantic typing corresponding to a data value. The mediator retrieves a recipient input property type identifier corresponding to the launch target identifier, and uses the requester provided property type identifier and the recipient input property type identifier to select a translator. The mediator passes a data value included in the component request to the selected translator, and receives a translated data value from the translator. The mediator constructs a property using the translated data value and includes the constructed property in a call that is sent to the second component.