digraph {

    node [shape=box]

    subgraph process {
        RMLVO [
            label=<<i>End user configuration</i><br/><b>RMLVO:</b> <b>R</b>ules, <b>M</b>odel, <b>L</b>ayout, <b>V</b>ariant, <b>O</b>ptions>,
            penwidth=3,
            href="@ref RMLVO-intro",
        ];
        RMLVO_resolution [
            label=<<i>RMLVO resolution</i><br/>Determine KcCGST using the specified rules file:<br/>match the given model, layout, variant and options fields>,
            style=rounded,
            color=blue
        ];
        KcCGST [
            label=<<i>Layout database configuration</i><br/><b>KcCGST:</b> <b>K</b>ey<b>c</b>odes, <b>C</b>ompat, <b>G</b>eometry, <b>S</b>ymbols, <b>T</b>ypes>,
            penwidth=3,
            href="@ref KcCGST-intro"
        ];
        KcCGST_resolution [
            label=<<i>KcCGST resolution</i><br/>Construct the keymap from its components>,
            style=rounded,
            color=blue
        ];
        Keymap [
            label=<<i>Window server configuration</i><br/><b>Complete keymap</b>>,
            penwidth=3,
            href="@ref keymap-intro"
        ];
    }

    database [shape=none, label=<
        <table border="0" cellborder="1" cellspacing="0" cellpadding="4">
            <tr><td><b>Layout Database</b></td></tr>
            <hr/>
            <tr><td port="rules">Rules files</td></tr>
            <tr><td port="keycodes">Keycodes files</td></tr>
            <tr><td port="compat">Compat files</td></tr>
            <tr><td port="geometry">(Geometry files)</td></tr>
            <tr><td port="symbols">Symbols files</td></tr>
            <tr><td port="types">Types files</td></tr>
        </table>
    >];

    { rank = same; KcCGST; database }

    edge [
        color=blue,
        arrowhead=normal,
        style=bold
    ]
    {
        rankdir="TB";
        RMLVO -> RMLVO_resolution -> KcCGST -> KcCGST_resolution -> Keymap
    }


    edge [
        color=dimgrey,
        arrowhead=vee,
        style=solid
    ]
    RMLVO:e -> database:rules:e [constraint=false];
    KcCGST:e -> database:keycodes:w [constraint=false];
    KcCGST:e -> database:compat:w [constraint=false];
    KcCGST:e -> database:symbols:w [constraint=false];
    KcCGST:e -> database:types:w [constraint=false];

    database:rules:w -> RMLVO_resolution:e [constraint=false];
    database:keycodes:e -> KcCGST_resolution [constraint=false];
    database:compat:e -> KcCGST_resolution [constraint=false];
    database:symbols:e -> KcCGST_resolution [constraint=false];
    database:types:e -> KcCGST_resolution [constraint=false];
}