Retrospection = true for attributes means that we need to record faithfully the values associated with the attribute over time. An example of this is the cost of a bottle of wine. As this cost changes over time, we need to record the new cost price without losing any of the previous cost prices.
Retrospection = true for attributes means that we need to record faithfully the values associated with the attribute over time. An example of this is the cost of a bottle of wine. As this cost changes over time, we need to record the new cost price without losing any of the previous cost prices.