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Property representation in ISO 10303

Property representation in ISO 10303. Dr Norman Swindells CEng, FIMM Ferroday Limited DEPUIS Workshop, ENEA, 2008-04-14. Quantities and properties. Quantity is an amount of something A multiple of a unit amount – e.g 1MPa*35 Property is a characteristic of something

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Property representation in ISO 10303

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  1. Property representation in ISO 10303 Dr Norman Swindells CEng, FIMM Ferroday Limited DEPUIS Workshop, ENEA, 2008-04-14

  2. Quantities and properties • Quantity is an amount of something • A multiple of a unit amount – e.g 1MPa*35 • Property is a characteristic of something • May be defined by a particular process • May be a property of a product or a process • Magnitude of a property can be described: • Quantitatively – by a measuring a quantity, e.g. 35 MPa • Qualitatively – by a comparison, e.g. ‘blue’ • Magnitude of property value will depend on the conditions of a measurement process – the data environment

  3. Types of properties • Simple – concept independent of method • Use comparison with a standard quantity (length, time, weight, voltage, etc.) • Different measurement methods produce the same result • Complex – concept defined by method • Different measurement methods produce different properties • Magnitude of both types will depend on the conditions of the measurement process – the data environment

  4. Role of properties Product manufacture Eco- Design Re-use Product properties Disposal records Disposal methods Disposal plan

  5. Use of properties • Enable: • Reuse of products – from longer life of information • Recycle of materials – from more complete information • Reduce use of resources – from wider availability of process information

  6. Life cycle assessment LCA Environmental impact (LCIA) Environmental measurements Landfill records Disposal/recycling records Hazardous product information Hazardous process information Hazardous location information Etc. Types of property data

  7. STEP and properties

  8. SC4 Standards for properties • ISO 10303-45 Materials and other engineering properties • Integrated generic resource for any property of a product • ISO 10303-235 Engineering properties for product design and validation • Processes for the determination of a product property

  9. ISO 10303-45 • Association of a property with a product or with a part of a product • Association of a property value with its data environment • Chemical composition of a product • Resources to specify the uncertainty and reliability of a property value • EXPRESS-G

  10. Product_ definition Characterised _object Material_ property Material_ property Material_ Property_ representation Property_ definition_ representation Representation Representation Data environment Product property Data environment

  11. ISO 10303-235 Engineering properties for product design and validation • Application of STEP generic resources • Relates the meaning of a property to the testing and validation processes • Provides an audit trail from the property value to its origin in a test and validation process • Information model for any property measured by any process • Uses ISO 13584 data dictionaries for the terminology of specific property domains

  12. Product Properties Processes and methods Numerical values Mathematical values Substance and structure Administration data Approvals, certification Documents External references Effectivity Requirements Resources Tolerances ISO 10303-235 : scope

  13. Application to ISO 14048 data • CASCADE project mapped the requirements specified in ISO 14048 on to appropriate information objects in ISO 10303-235 • ISO14048 Mapping

  14. Conclusions • ISO 10303 has several resources for the represention of property data • Standardised representations of property data are required in many environmental situations • The DEPUIS project has e-learning courses for ISO 10303-45 and ISO 10303-235

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