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This unit presents another approach to data partitioning: based on the state of the related business objects, database entries can be flagged as actual or historical. While this approach is not generally applicable for all domains ( scientific data for example has no clear distinction attribute in contrast to enterprise data), a cooperative approach of the ERP system and the database allows for an efficient distinction.
As for a deepening reading material, please have a look onto Prof. Plattner's blog post.