Companies face complex challenges creating and maintaining embedded software needed to support a rapidly expanding product line portfolio. To better address this challenge, the IBM Rational Rhapsody and BigLever Gears Bridge solution is a convergence of synergistic MDD and SPL technologies. Compared to conventional, hand-coding approaches, SysML and UML provide a powerful enabler for the rapid development of individual products within a product line and better abstraction and visualization for the maintenance and evolution of those products over time. SPL engineering methods and tools are designed to provide the essential capabilities of expressing, encapsulating, and managing the feature diversity within a product line portfolio. Download this paper to begin leveraging the model-driven development and software product line engineering synergy for success.