Abbreviation or Acronym?

Contracted English braille has different rules for translating the items it
calls abbreviations and the items it calls acronyms. I don't want to start
yet another discussion of the differences between abbreviations, acronyms,
initialisms and so forth.  However, at the very least the <abbr> element
should have an optional attribute for identifying the type of abbreviation.
Having to parse the value of the title attribute to make this determination
would be undesirable at best and might not always produce the desired
result.

Sincerely,
Susan Jolly