scope:

PURPOSE AND SCOPE

Purpose and Motivation

The purpose of this Standard is to expand upon the important role of uncertainty quantification (UQ) in verification, validation, and uncertainty quantification (VVUQ), as outlined in Figure 1.1-1. UQ plays an important part in each of the "Modeling and Simulation" and "Physical Experimentation" branches illustrated in the figure, ultimately quantifying the uncertainties in the "Simulation Results" and "Experimental Results" generating the "Simulation Outputs" and "Experimental Outputs." A detailed description of this figure is provided in ASME V&V 10-2019.

Consistent with the purpose of ASME V&V 10-2019, the motivation for developing ASME VVUQ 10.2 is the need for a common language and process of UQ in computational solid mechanics (CSM), particularly as it may relate to how model developers perform UQ as well as how they subsequently communicate results, conclusions, and recommendations to a decision-maker. A decision-maker may be any individual or representative body, such as a review panel, deemed responsible for determining if a model is acceptable for its intended uses. The decision-maker may also be a customer relying on model predictions to inform a decision.

Objectives and Scope

Objectives.

The objectives of this Standard are to

(a) define and clarify the role of UQ as part of the VVUQ process

(b) provide guidance for the use of UQ in VVUQ activities

(c) acknowledge the importance of UQ in decision-making

The scope of this Standard includes the following:

(a) sources and types of uncertainty and how they can be treated in the VVUQ process (section 2)

(b) quantification and propagation of uncertainties (section 3)

(c) uncertainties in validation experiments (section 4)

(d) uncertainties in model validation assessment (section 5)

(e) revisions to the model and experiments (section 6)

(f) uncertainties in hierarchical models (section 7)