This paper describes an extension to the componentbased programming model to support real-time dynamic guarantee for distributed applications. The extended model aims to include an acceptance tests to component-based servers at bind time. We present the mapping of our model to the CORBA Component Model, the architecture to support the dynamic guarantee in component-based middleware, the implementation of this architecture in CIAO (Component Integrated ACE ORB) and the result of experiments run to evaluate the cost of the mechanisms used.