February 2011
Beginner to intermediate
408 pages
14h 35m
English
Content preview from Developing High Quality Data Models
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17.4. Spatio-Temporal Extent and Class of Spatio-Temporal Extent
Figure 17-4 presents a data model for spatio_temporal_extent and class_of_spatio_temporal_extent . A spatio_temporal_extent is some arbitrary piece of space-time that is not necessarily contiguous and is part_of at least one possible_world . A spatio_temporal_extent may have a beginning event and an ending event (it will necessarily have both, but you will not necessarily know them).
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Figure 17-4
HQDM_FRAMEWORK EXPRESS-G diagram 4 of 46.
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A spatio_temporal_extent may be a member_of one or more class_of_spatio_temporal_extent , which in turn may be a member_of ...
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