Use of multiple international vendors and multiple communication protocols is common in these industries. The nuclear industry has only recently started large-scale adoption of computers in their instrumentation and control systems. MPR uses several approaches. Process reviews to examine the supplier s Quality Assurance programs and processes. Audits to verify the suppliers compliance with applicable regulatory requirements and standards.
System reviews to examine the detailed design of systems.
Because systems reviewed vary in safety significance and importance to plant operation, a graded approach is used. The most scrutiny is applied to systems and software items that have the greatest potential impact on safe, reliable plant operation. Compare the design requirements to the regulatory commitments. Verify that broad design requirements are translated correctly into more detailed design documents, code, and test procedures. Evaluate use of automated tools for requirements and code analysis.