In this appendix we give an account of the testing that has been
carried out on two spelling checkers, in order to assess our own evaluation
Generally spelling checkers are integrated in a word processor, and
this is the way most end users access them. In order to mimic as closely as
possible real-world experiences, we have tested the checker via the word
processors as well. It is clear that the underlying spelling engines might
offer different functionalities from those offered via the word processor
interfaces, but those would in any case be hidden from the typical end user.
The spelling checker function of the word processor is accessed in a batch mode
by the ASCC software, that simulates the user's behaviour in a spelling
session. ASCC also returns a report on the number of words recognised or
rejected, and their relative percentage, and, if applicable, the list of
suggested replacement words.