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The SeaView model focuses on BLP but in databases that store crowd-sourced data, integrity could be the primary concern. Assume access levels for...

The SeaView model focuses on BLP but in databases that store crowd-sourced data, integrity could be the primary concern. Assume access levels for integrity could be low, medium, high or very high. Users can also have these same access levels based on their expertise related to the topic of the stored data. Assume we want to support a Biba like model in this database. Would there be polyinstantiation in this system? If yes, would it be visible, invisible or both kinds? Explain your answer and use examples where appropriate. 

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