oSP3D uses these terms:
| Term | Definition |
|---|---|
| Activity | Active samples are typically input for all statistical algorithms. Inactive samples are ignored. |
| Component | Subset or selection of a group of finite element nodes or finite elements. |
| Data object | Single field data object or scalar number. A data object represents a specific field realization and can be visualized. |
| Design identifier | Name of the sample (number) or name of a specific result. |
| Design number | Unique number of a sample. |
| Element data | Field data type where a single discrete value is stored at each finite element. |
| Field amplitude | Scalar parameter that weighs the influence of a scatter shape onto the variation of a field quantity. |
| Generated data | Data objects created by oSP3D. Generated data includes scalar samples and result objects of hot spots. |
| Hot spot | Denotes the location of potential failure. This depends on the used robustness definition. It is typically the point with largest scatter (standard deviation, value range) or extremal quantile value. |
| Missing item | Denotes a single or multiple component in a field data object vector for which no data exists. Missing items are used to indicate eroded elements, errors in result computations, and errors in projection algorithms. |
| Neighbor | Neighbors are data objects that belong to the respective data object. |
| Node data | Field data type where a single discrete value is stored at each finite element node. |
| Part | Namespace (="scope") within the finite element structure. Each part defines its own node and element numbering space. |
| Quantity | Set of data objects with equal quantity identifier. |
| Quantity identifier | Name of the physical quantity associated with a set of data objects. |
| Random field components | Descriptive parameters of a random field model, such as field amplitudes. |
| Random field decomposition | Methodology for building a random field model, such as a decomposition of field samples. |
| Random field model | Numerical representation of variations on a FEM mesh with respect to parameters (scaling coefficients). |
| Reference components | Named selections or groups of nodes or elements that define a substructure of the FEM mesh. The reference node set and reference element set are components that are used to store all statistical data. The fixed node set defines the part of the surface that is not changed in case of geometric deviations. |
| Reference dictionary | Template defining the contents of any design directory used for import and export. |
| Reference mesh | FEM mesh on which all statistical data are stored, visualized, and computed. |
| Result object | Data object with a design identifier that is not a number. The latter case would be a sample object. |
| Scalar data | Scalar number. |
| Scatter shape | Field data object that associates a variation of some field quantity to the respective field amplitude with value 1. |
| Spatially global sensitivity analysis | Sensitivity analysis based on a field-MOP (metamodel of optimal prognosis), which is a plotting of the field COP (coefficient of prognosis) on the mesh. |
| Spatially local sensitivity analysis | Sensitivity analysis at a hot spot (MOP of scalar parameters). |
| Superset | In mathematics, especially in set theory, a superset is the opposite of a subset. |
| Update state | If a data object is marked as needs update at least one of its masters or neighbors was deleted or recomputed since its creation. |
| Variation | Amount of explainable variation by the random field model with respect to the
true scatter.
|