ISO 10303-108:2005
Current
The latest, up-to-date edition.
Industrial automation systems and integration — Product data representation and exchange — Part 108: Integrated application resource: Parameterization and constraints for explicit geometric product models
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24-01-2005
ISO 10303-108:2005 specifies the resource constructs for the representation of model parameters and constraints in CAD or other kinds of models, together with the mechanisms necessary for associating them with geometric or other elements of transferred models. The use of these capabilities potentially allows certain aspects of the behaviour of a model in its originating system to be conveyed together with the basic model itself. The intention in transferring this additional information is to provide the receiving system with data that will enable it to reconstruct corresponding behavioural characteristics in the model following the transfer. Ideally, this will enable the model to be edited in the receiving system just as as though it had been created there. That would not be possible without the exchange of what is known as design intent information. ISO 10303-108:2005 enables the capture and transfer of an important aspect of design intent.
The following are within the scope of ISO 10303-108:2005:
- parameterization of models through the association of variables with quantities occurring in them, including dimensional values;
- constraints defining mathematical relationships between variable parameters;
- constraints on models expressed as descriptive relationships between their constituent elements or attributes of those elements;
- specialized descriptive constraints corresponding to the geometric constraints commonly used in product shape modelling (e.g., parallelism or tangency between geometric elements);
- applications of parameterization and constraints to two- and three-dimensional shape models;
- specialized representations for two-dimensional geometric sketches or profiles;
- representation of models that are incompletely defined in the sense that certain values in the model may be regarded as not fully constrained.
The following are outside the scope of ISO 10303-108:2005:
- procedural or history-based model representations, expressed in terms of sequences of constructional operations;
- implicit or procedurally defined constraints, inherent in the operation of constructional operations;
- solution methods for systems of constraint equations;
- form features of shape models;
- behaviour of a system in which a variational model is edited following a transfer;
- considerations of accuracy in constraint satisfaction.
The following notes apply to the excluded capabilities.
- Procedural or history-based representations are the subject of ISO 10303-55.
- Methods of solving constraint equations are the responsibility of the application systems involved in the exchange. ISO 10303-108:2005 merely transfers the constraint relationships that need to be solved.
- Various other parts of ISO 10303 provide representations for different application-oriented views of form features.
- The information transmitted by the use of ISO 10303-108:2005 is intended to allow implementers to provide 'reasonable' or 'intuitive' behaviour by receiving systems following the transfer of a model in the circumstances mentioned above, but ISO 10303-108:2005 does not prescribe the detailed nature of such behaviour or of its presentation to the system user.
- Accuracy considerations are essentially the same in the ISO 10303-108:2005 context as those arising generally in the geometric modelling of product shape. Means are provided elsewhere in ISO 10303 for addressing accuracy issues.
Committee |
ISO/TC 184/SC 4
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DevelopmentNote |
Supersedes ISO/DIS 10303-108 (01/2005) Supplied on CD as it contains program files. (02/2005)
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DocumentType |
Standard
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Pages |
154
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PublisherName |
International Organization for Standardization
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Status |
Current
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Standards | Relationship |
NEN ISO 10303-108 : 2005 | Identical |
04/614025 DC : 0 | ISO 10303-55 - INDUSTRIAL AUTOMATION SYSTEMS AND INTEGRATION - PRODUCT DATA REPRESENTATION AND EXCHANGE - INTEGRATED GENERIC RESOURCE - PROCEDURAL AND HYBRID REPRESENTATION |
ISO 10303-111:2007 | Industrial automation systems and integration — Product data representation and exchange — Part 111: Integrated application resource : Elements for the procedural modelling of solid shapes |
PD ISO/TS 12911:2012 | Framework for building information modelling (BIM) guidance |
ISO 10303-112:2006 | Industrial automation systems and integration — Product data representation and exchange — Part 112: Integrated application resource: Modelling commands for the exchange of procedurally represented 2D CAD models |
ISO 10303-109:2004 | Industrial automation systems and integration — Product data representation and exchange — Part 109: Integrated application resource: Kinematic and geometric constraints for assembly models |
05/30141152 DC : DRAFT OCT 2005 | ISO 10303-111 - INDUSTRIAL AUTOMATION SYSTEMS AND INTEGRATION - PRODUCT DATA REPRESENTATION AND EXCHANGE - PART 111 - INTEGRATED APPLICATION RESOURCE - ELEMENTS FOR THE PROCEDURAL MODELLING OF SOLID SHAPES |
ISO 10303-55:2005 | Industrial automation systems and integration — Product data representation and exchange — Part 55: Integrated generic resource: Procedural and hybrid representation |
ISO/TS 12911:2012 | Framework for building information modelling (BIM) guidance |
ISO 10303-1:1994 | Industrial automation systems and integration — Product data representation and exchange — Part 1: Overview and fundamental principles |
ISO 13584-20:1998 | Industrial automation systems and integration — Parts library — Part 20: Logical resource: Logical model of expressions |
ISO 10303-11:2004 | Industrial automation systems and integration Product data representation and exchange Part 11: Description methods: The EXPRESS language reference manual |
ISO 10303-43:2000 | Industrial automation systems and integration Product data representation and exchange Part 43: Integrated generic resource: Representation structures |
ISO 10303-203:2011 | Industrial automation systems and integration Product data representation and exchange Part 203: Application protocol: Configuration controlled 3D design of mechanical parts and assemblies |
ISO 10303-55:2005 | Industrial automation systems and integration — Product data representation and exchange — Part 55: Integrated generic resource: Procedural and hybrid representation |
ISO 10303-21:2002 | Industrial automation systems and integration Product data representation and exchange Part 21: Implementation methods: Clear text encoding of the exchange structure |
ISO/IEC 8824-1:2015 | Information technology Abstract Syntax Notation One (ASN.1): Specification of basic notation Part 1: |
ISO 10303-41:2005 | Industrial automation systems and integration Product data representation and exchange Part 41: Integrated generic resource: Fundamentals of product description and support |
ISO 10303-50:2002 | Industrial automation systems and integration Product data representation and exchange Part 50: Integrated generic resource: Mathematical constructs |
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