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Expand an alphabet on the left pane to view available elements, click on any element to view its technical documentation on the right pane.
(best viewed with Firefox 10 or older, Opera or Safari - they can be viewed with IE 9 too but performance will be slow.)
Clicking on any element on this pane will open the techincal documentation describing the element on the right pane
Click on the [-] or [+] signs to expand a category.
Clicking on any element link on this pane will open the element on the very pane.
Clicking on any element with this
link symbol on the diagram will open the element on the very pane.
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an initiative of
United Nations Department of Economic and Social Affairs (UNDESA)