Sequence Diagrams

This chapter documents how the functional requirements, described in Scope, are met by the architecture by documenting sequence diagrams for each function. The level of abstraction results from the components introduced in the decomposition.

Wallet Lifecycle

Functional Requirement	Architecture Document	Description
Activate Wallet	Register Wallet Register Remote WSCD Issue WIA	The user installs the wallet, which starts the wallet activation. During wallet activation, the WI creates an account at the Wallet Provider Backend and requests issuance of an initial batch of Wallet Instance Attestations (WIA). Afterwards, it registers an account at the Remote WSCD.
Change RWSCD PIN	Remote WSCD Operations	The user changes their RWSCD-PIN which is initially set during registration. The WI utilizes change PIN operation from the Remote WSCD.
Delete Wallet	Remote WSCD Operations	The user requests deletion of the wallet app and all contained data. The WI utilizes delete account operation from the Remote WSCD.

PID Lifecycle

Functional Requirement	Architecture Document	Description
Issue PID	PID Issuance Remote WSCD Operations	The user requests issuance of the PID using the eID functionality. The WI utilizes create key and sign data operations from the Remote WSCD.
Remote Present PID	t.b.d. Remote WSCD Operations	The user remotely presents their PID in the same device flow. The WI utilizes create key and sign data operations from the Remote WSCD.