Systems As Well As User Roles
Note that roles are not just for human users. Systems, services, and other organizations can be assigned roles and permissions. For example, a prescription management system would recognize a specific EHR by the system authentication and based on that system identity find that the system is authorized to create new prescriptions or update prescriptions that it had created. This remote EHR would not be allowed to do any other permission. One graphic way to show which roles have access to which objects is a truth table.
Truth Tables
A truth table is simply a table that shows the roles in an organization and the class of object, with the actions allowed (such as create, read, update, delete, and execute). Table 28-1 ...
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