This book can be used to prepare for getting certified in SysML. The SysML certification program is called the OMG Certified Systems Modeling Professional (OCSMP). The first two levels of OCSMP certification cover what is referred to as the basic feature set of SysML. Chapter 4 introduces the basic feature set of SysML, which applies to all nine SysML diagrams and represents an expanded subset of the language features from what was informally introduced as SysML-Lite in the previous chapter. The basic feature set is applied to the system design of an automobile similar to the one that was introduced in Chapter 1.