| ASME Y14.41 - Digital Product Definition Data Practices | 2019 |
| A conceptual plane containing annotation that either perpendicularly intersects, or is coincident with one or more surfaces of a feature. |
| A model in which the product described is an assembly of two or more items. |  |
| The portion of a product definition to which annotation pertains. |
| A user-defined set of related digital elements. |
| The established relationship between digital elements. |
| A dimension, tolerance, note, text, or symbol required to complete the product definition or feature of the product that is not visible but available upon interrogation of the model. |  |
| A representation of a Cartesian coordinate system in a product definition data set. |  |
| Information represented in a formal manner suitable for communication, interpretation, or processing by human beings or computers. |
| Data duplicated or extracted from the original. A copy of a derivative is also a derivative. |
| The portion of the data set that contains model geometry and supplemental geometry. |
| Geometric element, feature, group of features, annotation, associated group, or attribute that exists in a data set. |
| A label or name used to specify a unique digital element. |
| A graphic entity used in a data set. For example: point, line, plane, surface, solid, coordinate system, or crosshatching. |
| A model in which the product described is an installation, showing parts or assemblies and a partial or complete representation of the installation site. |
| The data required for the release, control, and storage of product definition data as well as other relevant engineering data. |
| A combination of design model, annotation, and attributes that describes a product. |  |
| Geometric elements in product definition data that represent an item. |
| The numerical value derived by interrogating the model that quantifies the form and spatial relationships of the geometry composing a design model, or assembly of models, to the precision (number of decimal places) of the computer system. |
| Denotes the totality of data elements required to completely define a product. Product definition data includes geometry, topology, relationships, tolerances, attributes, and features necessary to completely define a component part or an assembly of parts for the purpose of design, analysis, manufacture, test, and inspection. |
| A collection of one or more data file(s) that discloses, directly or by reference, by means of graphic or textual presentations, or combinations of both, the physical or functional requirements of an item. |
| A means of interrogating a digital element or the relationship between digital elements. |
| A supplemental geometry line or curve segment indicating the orientation of a direction dependent tolerance. |
| A model value that is rounded off to the number of decimal places required for the design. |  |
| Geometric elements included in product definition data to communicate design requirements but not intended to represent a portion of an item. |  |
