regarding transliteration of Hebrew into the Roman alphabet. The Hebrew component of a Yiddish text will normally reflect the transliterator's preference without being seen as a component of the methodology applied to the romanization of words presented in the phonemic orthography. Transcription A transliteration system uses one script to represent another as closely as possible. It normally permits unambiguous conversion between the two scripts. Where the intent is to indicate phonetic variation, some form of transcription (frequently done through usage of the International Phonetic Alphabet (IPA)) will be required. There are also many contexts in which phonetic distinctions are indicated by the diacritical marking of the base characters, or through the similar use of some alternate script that is familiar to the intended audience. These approaches are all also seen in native Yiddish texts, where distinctions that cannot be directly represented with the basic Yiddish script but do need to be highlighted, are indicated by using additional Hebrew diacritical marks, with Roman letters, or with the IPA. There is no intrinsic reason why a transcription scheme cannot also be used for transliteration. In general, however, there is no expectation that the representation of a word in the source script can be retrieved from a transcription. Its purpose is to indicate how a word is pronounced, not its native orthography. The table in the following section indicates two alternatives each for romanized transliteration and phonetic transcription, and is keyed to the Yiddish character repertoire as codified by YIVO. Other transliteration systems are also regularly employed in a variety of contexts, but none represent the full range of variant pronunciation in Yiddish dialects. Nor is the YIVO system equally appropriate phonetically to all languages using Roman script. This issue becomes particularly complex when dealing with older texts where little is known about contemporaneous pronunciation; transmitting the fullest possible detail of their notation is historically important. There are several approaches to the romanization of such material. The YIVO transliteration system is solely intended to serve as an English-oriented phonetic counterpart to the modern Standard Yiddish described (and to some extent prescribed) in the SYO. That work does, however, consider the transcription of variant pronunciation as will be discussed below. YIVO published a major study of the range of Yiddish phonetic variation in The Language and Cultural Atlas of Ashkenazic Jewry, commonly referred to as the LCAAJ. This uses a detailed system of marked