Abstract: A translation layer connects a user program to an application programming interface by constructing function calls from a template text file that maps user program functions to application programming interface function primitives and by translating function call output received from the application programming interface to a user program format. The translation layer provides a programmable function-based connection that is able to alter the procedure and the semantics of data used to perform a function. For instance, a single user program function call may conditionally invoke plural application programming interface primitives. The translation layer improves flexibility in development of user programs by mediating with application programming interfaces through modifiable template text file and translation rules.