Validation

This paper describes the case of Independent Software Verification and Validation(V&V). As an example, verification and validation of the graphic recorder is introduced. Graphic recorder as a verification and validation paradigm describe the qualification approaching techniques and methods. Graphic recorder is a measurement data recording device with 5.5 inch TFT liquid crystal display instead of a paper. It mainly describes V&V criteria, testing approach, software verification methodology, techniques and procedures. However, hardware based equipment qualification (i.e. environment qualification, seismic qualification, and EMI/RFI qualification) has been excluded. The V&V methods for each phase of the software life cycle and V&V input-output tasks, with a focus on the processes are described. From the initial phase to the final phase of development, development and testing/verification were performed according to the software life cycle based on information engineering methodology. The suggested validation and verification paradigm is satisfied with SRP7/BTP-14 criteria, which is the digital software licensing standard for safety-critical system (for example, aerospace, railways, automobile and nuclear industry etc). The paper addresses the pass/fail criteria for each phase of the software life cycle referenced by hierarchical international standard framework