In many parts of the specification the term 'optional' is used. I think this term is fuzzy since it doesn't give the number of allowed repetitions. I thus suggest that you either replace it with 'zero or one times' everywhere (which I would prefer), or you add an explanation somewhere.
In many parts of the specification the term 'optional' is used. I think this term is fuzzy since it doesn't give the number of allowed repetitions. I thus suggest that you either replace it with 'zero or one times' everywhere (which I would prefer), or you add an explanation somewhere.