In today's competitive world, customer demands for highly reliable products, makes reliability engineering a more challenging task. Reliability analysis is one of the main tools to ensure agreed upon delivery deadlines, which in turn maintains certainty in tangible factors such as goodwill and company reputation. This unique book considers a complex production system composing of several autonomous robots performing manufacturing jobs. The reliability of the complex system is analyzed under different conditions, with different objectives. Various reliability models are developed with each focusing on the specifications of a unique problem, and provides the evaluation of a complex system.