Preliminary Evaluation of Computerized Procedure From Safety Viewpoints

The KNGR is an evolutionary reactor and is under development. This paper briefly describes standard design license system and primary design features of the Computerized Procedure System (CPS) and compares the CPS of the KNGR with other computer-based procedure systems. From a literature survey and an informal study, we firstly derive the review issues for safe plant operation - safety impact on operation personnel and shift performance, design for situation assessment and response planning, utilization during complex situations including the CPS failure, design for navigation and communication, and software quality. Then we present the preliminary evaluation results. From the literature survey of design and evaluation documents and an informal study, we found that CBP is a design trend and can support and enhance operator performance effectively. However there exist a few open issues too. That is why the designers need to implement CBP system thoughtfully. This paper addressed five issues for the review of the CPS for safe plant operation, but we will not limit to the review issues that are listed here. This paper also described the preliminary evaluation results. That is, we are on the long way of safety review. (authors)