Standard

ASME VVUQ 50.1

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Omfang

This Guide provides a guide to the life cycle of a computational model from an engineering perspective, with particular reference to the associated verification and validation processes. The material is presented in the application context of advanced manufacturing and demonstrates how verification and validation processes incorporate into the following iterative stages: establish model requirements, develop the model, deploy the model, use and maintain the model, and retire the model. The emphasis of this Guide is on how the verification and validation processes bear on the life cycle stages; how they are performed is outlined, but further details (including their theoretical basis) are the proper scope of other references, standards, and guidelines. As explained in the Foreword, the life cycle scope of this Guide necessitates the use of the perspectives of both ASME VVUQ 1–based standards, which are concerned with model quantitative accuracy but not end application requirements, and ISO/IEC 15288–based standards, whose scope includes engineering products in the context of end application requirements. These two types of frameworks should work together across a computational model’s life cycle. One of the challenges faced when integrating the two frameworks arises from the differences in meaning associated with the terms “verification” and “validation” in the frameworks. This Guide explains these differences and illustrates how the terms may be integrated in practical engineering contexts. While the examples provided in this Guide focus on computational models for advanced manufacturing production systems (AMPS), the overall principles and approach described can be applied equally well to models of any system, process, or other subject described by computational models; can be used for diverse but identifiable purposes; and can be used by diverse but identifiable model users. Nevertheless, this Guide primarily addresses computational models of advanced manufacturing and not models of the design of manufactured products or other special cases. This Guide may be used as (a) a general end-to-end narrative providing guidance across the computational model life cycle, including informal story narratives and examples (b) a reference on specific stages of the computational model life cycle (c) an importable object-based data model, speeding the implementation of this Guide by importing and directly applying the related guidance in the form of a model-based, reusable, configurable system pattern of the higher-level situation and specific enterprise (d) an instantiation of a model for a specific project, for direct use in projects

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