ISO/PDTS 10303-1039 was prepared by Technical Committee ISO/TC 184, Industrial automation systems and integration, Subcommittee SC4, Industrial data.
This International Standard is organized as a series of parts, each published separately. The parts of ISO 10303 fall into one of the following series: description methods, integrated resources, application interpreted constructs, application modules, application protocols, abstract test suites, implementation methods, and conformance testing. The series are described in ISO 10303-1. A complete list of parts of ISO 10303 is available from the Internet:
http://www.nist.gov/sc4/editing/step/titles/.
Annexes A and B form an integral part of this part of ISO 10303. Annexes, C, D, E, aand F are for information only.
This application module is concerned with the specification of the nature of a property in terms of the physical phenomenon that is observed or measured.
The set of all values or magnitudes of a physical phenomenon can be regarded as a 'property space'. A particular value or magnitude of a physical phenonmenon is an independent property definition that is a member of the property space.
EXAMPLE - Temperature is a property space.
400 degrees Kelvin is an independent property definition within the space of temperatures.
Both time and geometric space are instances of property space.
EXAMPLE - The geometric space in which my aeroplane is at rest is a property space. The geometric space in which the earth is at rest is a different property space.
This application module supports the definition of a observable or measureable physical phenomenon, or property space.
NOTE - An independent property definition is a class that an individual physical object can be a member of. The class indicates the nature of an observable or measurable aspect of the individual physical object.
The mass of 10 Kg is an independent property definition. The widget with serial number 1234 in its state at 10:30 on 1998-11-05 is a member of this class.
A property space is a class that an independent property definition can be a member of. The class indicates the nature of the physical phenomenon that is the criterion for the independent property definition.
Temperature is a property space. The temperature of 20 degrees Celsius is a member of this property space.
The following are within the scope of this application module:
the relationship between an independent property definition and the property space that it is a member of;
EXAMPLE - The independent property definition that is 400 degrees Kelvin is a member of the property space that is temperature.
The property space that is temperature is a standard instance defined within a reference data library. The property space indicates the nature of the independent property definition.
A numeric description of an independent property definition (by the number 400 with respect to the Kelvin scale in this case) is not within the scope of this module.
the tensor order of a property space;
EXAMPLE - Temperature is a scalar space. Stress is a second order tensor space. Elasticity is a fourth order tensor space.
The following are not within the scope of this application module:
NOTE - The components of a compound property space can be specified in the compound property space applicaton module.
NOTE - An independent property definition is defined in the independent property definition application module. The numerical identification a property value with respect to a unit of measure is supported by the property identification application module.
NOTE - Standard instances of property space for structural analysis are defined in the property dictionary for structural analysis application module.
If you have a comment on this module, please send it to the support team