# IT:AD:PlantUML:HowTo:Draw Graphs:Data Model #

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<panel title="Summary">



</panel>


## Examples 

<sxh>
digraph er {
        node[shape=box];
        Customer;
        Loan;
        Book;
        {rank=same;Book,Customer,Loan}
        Book->Loan[dir="forward",arrowhead="crow",arrowtail="normal"];
        Customer->Loan[dir="forward",arrowhead="crow",arrowtail="normal"];
}
</sxh>

<uml>
digraph er {
        node[shape=box];
        Customer;
        Loan;
        Book;
        {rank=same;Book,Customer,Loan}
        Book->Loan[dir="forward",arrowhead="crow",arrowtail="normal"];
        Customer->Loan[dir="forward",arrowhead="crow",arrowtail="normal"];
}
</uml>


## Resources ##

* http://www.tonyballantyne.com/graphs.html#sec-4-4