Table 6.252—DRM_Season

Property

Description

Superclass

·         <DRM Base Time Data>

Class

·         <DRM Season>

Subclass

·         none

Definition

An object of this DRM class specifies the season of the year for which the attributed object is applicable. (See examples).

Since the definition of a season of the year is relative to the hemisphere being described, a <DRM Time Interval> component is required to specify the data provider's definition of the specified season.

Example(s)

·         Summer in the northern hemisphere, lasting from 21 June to 22 September (any year). This would be represented as in the following diagram. The <DRM Absolute Time Interval> component of the <DRM Season> indicates the span of time covered by the <DRM Season>.

·         Consider a <DRM Time Related Geometry> representing a forest in the northern hemisphere in winter, spring, summer, and autumn. The branch for summer has a <DRM Time Constraints Data> link object with a <DRM Season> component resembling that in the example above.

Inherited field elements

field_name

range

Field_Data_Type

time_significance1

 

Time_Significance

Field elements

field_name

range

Field_Data_Type

season2

 

Season

Associated to (one-way) (inherited)

·         none

Associated to (one-way)

·         none

Associated by (one-way) (inherited)

·         none

Associated by (one-way)

·         none

Associated with (two-way) (inherited)

·         none

Associated with (two-way)

·         none

Composed of (two-way) (inherited)

·         none

Composed of (two-way)

·         one <DRM Time Interval>3

Composed of (two-way metadata) (inherited)

·         none

Composed of (two-way metadata)

·         none

Component of (two-way) (inherited)

·         zero or more <DRM Environment Root>s

·         zero or more <DRM Time Constraints Data>s

·         zero or one <DRM Transmittal Root>

Component of (two-way)

·         none

Constraints

·         none

Notes

1 Used to indicate the significance of the time information.

2 A season of the year.

3 The interval of time covered by the <DRM Season>.

Class diagram

<DRM Season>