YstokHelp compiler is a tool for developing a complex help book.
The compiler converts flexible links with the
help scheme into final URIs, compiles the table of contents (TOC)
and index etc.
Every help book component class is subclass of the class
asd:component, which is defined in
ASDlite — a small version on
ASDF.
On the above figure, only the tree of "backbone" classes is figured.
There are several mixin classes that are not pictured, for example topic-mixin.