RELAP-7 Software Verification and Validation Plan - Requirements Traceability Matrix (RTM) Part 2: Code Assessment Strategy, Procedure, and RTM Update

Abstract

This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for any third party's use, or the results of such use, of any information, apparatus, product, or process disclosed in this report, or represents that its use by such third party would not infringe privately owned rights.

Additional Model Datasets and Results to Accelerate the Verification and Validation of RELAP-7

“…Among the list of V&V test problems in the 'RELAP-7 code V&V RTM' [2], three verification tests (Requirement ID: VR-1, VR-2, VR-3) and two validation tests (Requirement ID: VR-19, VR-35) are conducted. In this section, the test results along with the issues found are discussed.…”

“…. As a part of the software quality assurance, INL has a project to establish an independent code assessment plan for RELAP-7 called RELAP-7 Software V&V Plan [2]. The main purpose of this plan is to provide a suitable way to evaluate and document the RELAP-7 development status as well as the code prediction capability so that the final code product quality can be assured through the development process.…”

“…The main purpose of this plan is to provide a suitable way to evaluate and document the RELAP-7 development status as well as the code prediction capability so that the final code product quality can be assured through the development process. In the INL document for the RELAP-7 code assessment plan [2], the various aspects of requirements for RELAP-7 are identified through the review of legacy code manuals, system code users' experience, and nuclear industry needs. Also, the document provides the necessary information that can be used for the RELAP-7 assessment, including the specific list of V&V test problems, in a form of matrix, i.e., Requirements Traceability Matrices (RTM).…”

“…At present, RELAP-7 assessment activity is ongoing by INL within the framework established in the RELAP-7 Software V&V Plan [2]. In this document, the recent activities of the verification and validation of RELAP-7, performed by the independent INL RELAP-7 code assessment team, are described.…”

RELAP-7 Software Verification and Validation Plan: Requirements Traceability Matrix (RTM) Update and Code Verification Strategy

“…If needed, the RELAP-7 development status can also be assessed with the test problems designated by the code assessment team [2]. The RELAP-7 IV&V activities, a major part of RELAP-7 assessment [3], should be in principle independent of the code development activities to ensure the quality of code [3]. Nonetheless, since the RELAP-7 features are still evolving, a certain level of communication between the code developers and code assessment team is inevitable, but must be done within the prescribed procedure.…”