Administrator User Guide
Multiwrite Databases and Extracts : Extracts : Advantages
Advantages
The advantages of extracts compared to simple multiwrite databases are:
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Claimed elements are not released when you change module or exit from AVEVA E3D™.
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You can save your changes to the extract, without updating the owning database until you are ready.
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You can issue or drop partial changes.
Extracts can be used to control approval and issuing of work. For example, changes can be issued when given criteria are met. Other users can then read the approved data rather than the working data. Using Data Access Control to control workflow is described in Data Access Control (DAC).
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