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digraph G {
subgraph cluster_2 {
ubank;
nexus;
rank="same"; ebank; mbank;
label="Fiat currency";
};
subgraph cluster_1 {
user;
exchange;
shop;
rbank;
label="Regional currency";
};
subgraph cluster_2b {
}
user[label="Customer (Wallet)"];
shop[label="Merchant (Backend)"];
exchange[label="Exchange"];
ubank[label="Customer Fiat Bank"];
ebank[label="Exchange Fiat Bank"];
mbank[label="Merchant Fiat Bank"];
rbank[label="Regional Currency Bank"];
user->ubank [label="1. Initiate withdraw"];
ubank->ebank [label="2. Wire transfer"];
ebank->nexus [label="3. EBICS (CAMT)"];
nexus->rbank [label="4. Conversion (Cash-in)"];
rbank->exchange [label="5. Wirewatch"];
exchange->user [label="6. Withdraw E-Cash"];
user->shop [label="7. Spend E-Cash"];
shop->exchange [label="8. Deposit E-Cash"];
exchange->rbank [label="9. Credit Shop"];
rbank->nexus [xlabel="10. Conversion (Cash-out)"];
nexus->ebank [label="11. EBICS (PAIN)"];
ebank->mbank [label="12. Wire-transfer"];
}
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