Data type: HXIT : History_item

Description of: HXIT : History_item

Generic data to give the time range in which some information was, is, or is expected to be valid.

Component definitions for: HXIT : History_item

validity_period :: IVL<TS>

The time interval the given information was, is, or is expected to be valid. The interval can be open or closed infinite or undefined on either side.

value :: HXIT.T

The information itself.