A Sequential region must have the following when it monitors the relative sequence of the items in the region by their:
Unique Item identifiers
An automatic Item identifier
or a User
transaction (specifying Item ID or Reference ID), or
An Application Interface message
(specifying Item ID or Reference ID) as a Region Entry Transition
Indicator, or
Be preceded by a Sequential
Tracking Region also monitoring the relative sequence of the Items
in the Region by their unique Item identifiers.
Item type
An Item type detector, or
A User transaction (specifying
Item type), or
An Application Interface message
(specifying Item type) as a Region Entry Transition Indicator,
or
Be preceded by a Sequential
Tracking Region also monitoring the relative sequence of the Items
in the region by their Item Type.
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Primary region types. |
