It is organized using the simple and practical Javadoc style. It embeds the
natural docs annotations. It is lightweight and easily browsable.
You can also browse it online: www.dvteclipse.com/uvm-1.1-HTML_API/index.html
If you use an IDE (like DVT - www.dvteclipse.com), the API specification
embedded in comments is presented in-line with the code. You don't have to
switch to the API docs while editing.
You can extract a similar documentation from your code using DVT.