Model-Based Characteristics (MBC) - Persistent Identification and Related Digital PracticesReference2024
This Model-Based Characteristics (MBC) standard defines nomenclature, definitions, symbols, data structures, and practices for identifying, communicating, and exchanging model-based characteristics with various optional augmentations through both a logical data model and supporting documentation.
3D CAD Model
    
    
3D Model of a physical item that is generated using drafting and design software.
Alternate Definitions ->
3D Model
    
    
A three-dimensional spatial model.
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Annotation
    
    
Visible dimensions, tolerances, notes, text, or symbols.
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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.
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Characteristic
    
    
a control placed on an element of a feature such as its size, location or form, which may be a specification limit, a nominal with tolerance, a feature control frame, or some other numerical or non-numerical control.
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Characteristic Augmentation
    
    
An item of specialized supplemental information associated with a characteristic such as Criticality Classification, Product Requirement Associations, or Verification Plan Requirements.
A designator that labels a characteristic augmentation from its attributes.
A designator that labels a characteristic augmentation from its attributes.
Critical Characteristic
    
    
A characteristic that analysis indicates is likely, if defective, to create or increase a hazard to human safety, or to result in failure of a system to perform a required function.
Alternate Definitions ->
A characteristic augmentation that optionally designates a criticality.
Customer Requirement
    
    
A requirement that address a customer's expectations for the functionality, performance, and quality of a product being developed.
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Designator
    
    
A means to identify and set apart for a specific purpose.
Driven Characteristic
    
    
A Product Characteristic, which is supplemented by a Product Requirement Association augmentation.
Embellished Derivative
    
    
The condition of a derivative being embellished from its source with respect to an intended use.
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Equivalent Derivative
    
    
The condition of a derivative being functionally equivalent to its source with respect to an intended use.
Feature Reference Tag
    
    
A tag used to identify a geometric feature, face, or element.
General Tag
    
    
A characteristic tag used for a non-product characteristic or general usage.
Model
    
    
The portion of the data set that contains model geometry and supplemental geometry.
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A characteristic, which is represented within a model-based definition model.
Model-Based Definition
MBD 
    
An annotated model and its associated data that define the product in a manner that can be used effectively without a drawing graphic sheet.
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A characteristic, which is created to identify an operation or process requirement for the product realization process of a product or of a feature of a product.
Process Definition
    
    
[Primary] Any information that defines the physical or functional characteristics of a product, to ensure the design intent.

[Alt] The activity that defines a process that realizes a product.

Alternate Definitions ->
Product Characteristic
PC 
    
A tolerance or specification applied to a feature or product that requires verification. A characteristic has a local designation identifier(s) and may have a criticality associated with it.
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An identifier, which is used as the basis for both a Product Characteristic Reference Identifier (i.e., Tag or UUID), and a Product Characteristic Instance Identifier.
An optional identifier that is concatenated with a Product Characteristic Base Identifier, which uniquely identifies a Product Characteristic Instance Identifier.
An identifier (i.e., Tag or UUID), of an instance of a Product Characteristic Reference Identifier, which combines a Product Characteristic Base Identifier with an optional Product Characteristic Extension Identifier.
An identifier (i.e., Tag or UUID), which references a verification requirement annotation as a Product Characteristic, which contains the Product Characteristic Base identifier.
Product Definition
PD 
    
[Primary] Any information that defines the physical or functional requirements of a product, to ensure design intent.

[Alt] The activity that defines a product.

Alternate Definitions ->
Product Requirement
    
    
A requirement that address a product's purpose, its features, functionalities, and behavior.
Alternate Definitions ->
A characteristic augmentation that optionally relates a product requirement to a characteristic.
3D annotations (dimensions and tolerances), metadata, notes and attributes needed to define the product beyond the 3D geometry.
Alternate Definitions ->
Service Characteristic
SC 
    
A characteristic, which is created to identify a service or maintenance requirement for the sustainment of a product or of a feature of a product.
Tag
    
    
A digital element identifier used as a human-readable identifier, unique within a local context.
A digital element identifier used as a persistent machine-readable universally unique identifier. The UUID should be generated according to the ISO/IEC 9834-8 standard.
Verification Characteristic
    
    
A Product Characteristic, which is supplemented by a Verification Plan Requirement augmentation.
A characteristic augmentation that optionally relates a verification plan requirement to the characteristic.
Verification Requirement
    
    
A requirement (e.g., tolerance, specification) applied to a part feature or product, which requires verification to assure product acceptance.