The DSDL API is layered on top of the Resource Management Application Programming Interface (RMAPI). As such, the DSDL API does not supersede the RMAPI but rather encapsulates and extends the RMAPI functionality. The DSDL simplifies data service development by providing predetermined solutions to specific Oracle Solaris Cluster integration issues. Consequently, you can devote the majority of development time to the high availability and scalability issues that are intrinsic to your application. You spend less time integrating the application startup, shutdown, and monitor procedures with Oracle Solaris Cluster.