ASME Y14.41-2012 pdf download

ASME Y14.41-2012 pdf download.Digital Product Definition Data Practices.
The following terms are defined as their use applies in this Standard. 3.1 ANNOTATION annotation: dimensions, tolerances, notes, text, or sym- bols visible without any manual or external manipulation. 3.2 ANNOTATION PLANE annotation plane: a conceptual plane containing annota- tion that either perpendicularly intersects, or is coinci- dent with one or more surfaces of a feature. 3.3 ASSEMBLY MODEL assembly model: a model in which the product described is an assembly of two or more items. 3.4 ASSOCIATED ENTITY associated entity: the portion of a product definition to which annotation pertains. 3.5 ASSOCIATED GROUP associated group: a user-defined set of related digital elements. 3.6 ASSOCIATIVITY associativity: the established relationship between digital elements. 3.7 ATTRIBUTE attribute: 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. 3.8 COORDINATE SYSTEM coordinate system: a representation of a Cartesian coordi- nate system in a product definition data set. 4 3.9 DATA data: information represented in a formal manner suit- able for communication, interpretation, or processing by human beings or computers. 3.10 DATUM SYSTEM datum system: a partial or complete datum reference frame. 3.11 DERIVATIVE derivative: data duplicated or extracted from the original. A copy of a derivative is also a derivative. 3.12 DESIGN MODEL design model: the portion of the data set that contains model geometry and supplemental geometry. 3.13 DIGITAL ELEMENT digital element: geometric element, feature, group of fea- tures, annotation, associated group, or attribute that exists in a data set. 3.14 DIGITAL ELEMENT IDENTIFIER digital element identifier: a label or name used to specify a unique digital element. 3.15 DIRECTION-DEPENDENT TOLERANCE direction-dependent tolerance: a tolerance that invokes a zone of parallel lines or curves.
3.18 HARD COPY hard copy: a printed or plotted copy of a displayed image on a medium such as paper or polyester film. 3.19 INSTALLATION MODEL installation model: a model in which the product described is an installation, showing parts or assemblies and a partial or complete representation of the installa- tion site. 3.20 MANAGEMENT DATA management data: the data required for the release, con- trol, and storage of product definition data as well as other relevant engineering data. 3.21 MODEL model: a combination of design model, annotation, and attributes that describes a product. 3.22 MODEL GEOMETRY model geometry: geometric elements in product definition data that represent an item. 3.23 MODEL VALUE modelvalue: thenumericalvaluederived byinterrogating the model that quantifies the form and spatial relation- ships of the geometry composing a design model, or assembly ofmodels, to the precision (number of decimal places) of the computer system. 3.24 PRODUCT DEFINITION DATA product definition data: denotes the totality of data ele- ments required to completely define a product. Product definition data includes geometry, topology, relation- ships, 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. (See ASME Y14.100.) 5 3.25 PRODUCT DEFINITION DATA SET product definition data set: a collection of one or more data file(s) that discloses, directly or by reference, by means of graphic or textual presentations, or combina- tions of both, the physical or functional requirements of an item. 3.26 QUERY query: a means of interrogating a digital element or the relationship between digital elements. 3.27 REPRESENTED LINE ELEMENT represented line element: a supplemental geometry line or curve segment indicating the orientation of a direction dependent tolerance. 3.28 RESOLVED DIMENSION resolved dimension: a model value that is rounded off to the number of decimal places required for the design. 3.29 SAVED VIEW saved view: a stored and retrievable specific orientation and a magnificationfactorofa model. (See ASME Y14.3.) 3.30 SPECIAL CHARACTER special character: entries such as dash (-), slash (/), and asterisk (*) that are not included in the set of capital letters A–Z, lowercase letters a–z, numerals 0–9, and punctuation symbols. (See ASME Y14.100.) 3.31 SUPPLEMENTAL GEOMETRY supplemental geometry: geometric elements included in product definition data to communicate design require- ments but not intended to represent a portion ofan item.