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| Actor | Role in the use case |
|---|---|
| Holder | Has Holds a mobile credential with a picture. Want Wants to take a trip or enter a (e.g.) sports venue. |
| Seller | Is a web site that is accessed by the Holder and creates the ticket using the mobile credential. |
| Scanner | Verifies the person as the holder of the ticket. |
| Policy Maker | Government or business that creates a policy that is used for access check. The policy is subject to fairly frequent updatees. |
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