AFT is a document preparation system. It is mostly free form meaning that there is little intrusive markup. AFT source documents look a lot like plain old ASCII text.
AFT has a few rules for structuring your document and these rules have more to do with formatting your text rather than embedding commands.
Right now, AFT produces pretty good HTML, LaTeX, lout and RTF. It can, in fact, be coerced into producing all types of output (e.g. roll-your-own XML). All that needs to be done is to edit a rule file. You can even customize your own HTML rule files for specialized output.
AFT is a property of AFT respective authors, vendors and developers. You can download AFT for your hardware. If you want to use AFT for other purpose, Please contact the authors, vendors and developers of AFT.