The complexity of the next-generation fault-tolerant electronic system design tasks will require interactive access to the reliability prediction tools in order to achieve the desired reliability goals. This proposal addresses the integration of the afhrl developed mission reliability model (mirem) and the available circuit design programs in an engineering workstation environment. The proposed effort includes the determination of the design-phase reliability prediction and engineering workstation functional requirements, needed mirem extensions, evaluation of the interfacing methods, and a feasibility/risk assessment. The proposed approach, based on the electronic design data interchangeconcept, will simplify the mirem integration task and will make miremavailable on a multitude of engineering workstations.