Role Based Access Control is a method of access controls where principals get access to resources through membership of permitted roles.

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How do i find the number of relationships between user and permission in DAC and RBAC

This is a part of a homework. I don't want an answer, just a hint. Assume a system with N job positions. For job position i, the number of individual users in that position Ui, and the number of ...
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Unique assignment of permissions to objects seems to also require the role?

So my understanding of RBAC is that Users have Roles, and Roles have Permissions and there should be a Permission Object mapping. I'm having a bit of a business logic problem though concerning RBAC. ...