February 2011
Beginner to intermediate
408 pages
14h 35m
English
Content preview from Developing High Quality Data Models
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17.12. Physical Properties and Physical Quantities
Figure 17-12 shows a basic data model of physical properties and physical quantities.
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Figure 17-12
HQDM_FRAMEWORK EXPRESS-G diagram 12 of 46.
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A physical_property is a class_of_state that is a member_of a kind_of_physical_property that a state can be a member_of (or more colloquially, possess). For example, red is a color that a state of a physical_object can possess.
A physical_quantity is a member_of an ordered set that is the kind_of_physical_quantity it is a member_of . For example, 20 Celsius is a degree of hotness that is a member_of the set of temperatures. A physical_quantity ...
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