50 lines
1.9 KiB
TeX
50 lines
1.9 KiB
TeX
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\section{Withdraw}
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\begin{figure}[h!]
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\begin{sequencediagram}
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\newinst{wallet}{\shortstack{Customer wallet \\
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\\ \begin{tikzpicture}
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\node [fill=gray!20,draw=black,thick,align=center] { Unique \\ Wallet ID};
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\end{tikzpicture}
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}}
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\newinst[2]{exchange}{\shortstack{Taler (exchange) \\
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\\ \begin{tikzpicture}[shape aspect=.5]
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\tikzset{every node/.style={cylinder,shape border rotate=90, draw,fill=gray!25}}
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\node at (1.5,0) {\shortstack{{{\tiny Database}}}};
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\end{tikzpicture}
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}}
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\newinst[2]{bank}{\shortstack{Customer bank \\
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\\ \begin{tikzpicture}
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\node [fill=gray!20,draw=black,thick,align=center] {Checking \\ Accounts};
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\end{tikzpicture}
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}}
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\postlevel
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\mess[0]{wallet}{Withdraw {(Amount)}}{exchange}
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\mess[0]{exchange}{{Configuration (ToS, Fees)}}{wallet}
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\begin{sdblock}{once}{}
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\begin{callself}{wallet}{Accept ToS}{}
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\end{callself}
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\end{sdblock}
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\begin{callself}{wallet}{Review withdraw fees}{}
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\end{callself}
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\mess[0]{wallet}{{Initiate transfer (Amount, Credit account, Wallet ID)}}{bank}
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\mess[0]{bank}{{Credit (Wallet ID)}}{exchange}
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\begin{sdblock}{Acceptable transfer?}{}
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\mess[0]{exchange}{{Bounce funds}}{bank}
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\end{sdblock}
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\postlevel
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\mess[0]{exchange}{Confirm wire transfer}{wallet}
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\mess[0]{wallet}{Request digital cash}{exchange}
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\mess[0]{exchange}{Distribute digital cash}{wallet}
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\postlevel
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\begin{sdblock}{Withdraw period expired?}{}
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\mess[0]{exchange}{{Return remaining funds}}{bank}
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\end{sdblock}
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\end{sequencediagram}
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\caption{Withdraw interactions between customer, Taler exchange (payment
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service provider) and bank. The amount of digital cash distributed is
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subject to limits per origin account (see Figure~\ref{fig:kyc:withdraw}).}
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\label{fig:int:withdraw}
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\end{figure}
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