"Roman-based alphabetic notations make use of Roman letters, sometimes with diacritical marks, graphic transformations, and other letters added. The alphabet adopted by the International Phonetic Association (IPA) in 1888 is Roman based. This system has become widely recognized as the international phonetic alphabet. Following Daniel Jones (1914) phoneticians have distinguished between the more detailed narrow and the less specific broad transcription. Among the latter systems are phonemic notations, which transcribe only phonemes and no phonetic variants."