ERIKA Enterprise is an open-source and royalty-free OSEK/VDX Kernel. This RTOS includes also RT-Druid, which is a development environment distributed as a set of Eclipse plugins. ERIKA Enterprise implements various conformance classes, including the standard OSEK/VDXconformance classes BCC1, BCC2, ECC1, ECC2, CCCA, CCCB. Moreover, ERIKA provides other custom conformance classes named FP (Fixed priority), EDF (Earliest deadline first scheduling), and FRSH (an implementation of resource reservation protocols).