MBT 2013 is devoted to model-based testing of both software and hardware. Model-based testing uses models that describe the behavior of the system under consideration to guide such efforts as test selection and test results evaluation. Model-based testing has gained attention with the popularization of models in software/hardware design and development. Of particular importance are formal models with precise semantics, such as state-based formalisms. Testing with such models allows one to measure the degree of the product's conformance with the model. The intent of this workshop is to bring together researchers and users using different kinds of models for testing and to discuss the state of the art in theory, applications, tools, and industrialization of model-based testing. Alexander K. Petrenko and Victor Kuliamin (Russian Academy of Science, Moscow, Russia) Dates: Sunday March 17th, 2013