Case studies were undertaken to evaluate the results of the initial guidance documents on realistic examples taken from actual projects. To focus the effort, different aspects of the concepts outlined above were applied to three industrial case studies (led by BNFL, Carl Bro, and EDF):
In order to facilitate dissemination of the CEMSIS method, a fourth (generic) example was developed to demonstrate the method end-to-end. This generic example incorporates features from several real applications in the nuclear industry. Because the example is not identifiable with any specific installation, it can be placed in the public domain.
The public-domain example was used as a vehicle for performing activities following the CEMSIS guidance. The activities covered the early phases of development, and specified the later development phases in sufficient detail to enable the production of a safety justification.