This is just a memo describing how to create docbook.
digraph Manuals {
label="New Flowchart for rsyslog manuals"
fontsize=24;
size="9,9";
nodesep="0.3";
rankdir=LR;
node [color=lightblue2, style=filled, shape=box, height=0.1, fontname="Helvetica"];
"DocBook XML" -> "HTML or XHTML" [label="xsltproc"];
"DocBook XML" -> "man(roff)" [label="docbook2man"];
"DocBook XML" -> "XSL-FO" [label="xsltproc"];
"DocBook XML" -> "TEX" [label="xsltproc"];
"DocBook XML" -> "PO" [label="xml2po"];
"HTML(from Wiki)" -> "DocBook XML" [label="manual\nor \ntidy(-asxml)"];
"XSL-FO" -> "PDF, RTF" [label="Apache FOP"];
"TEX" -> "PDF, RTF"
"PO" -> "DocBook XML" [label="po2xml"];
"PO" -> "PO" [label="translation\nwith\ngtranslator or kbabel"];
}