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TheInstitute of Language in Education Scheme (Chinese:教院式拼音方案) also known as theList of Cantonese Pronunciation of Commonly-used Chinese Characters romanization scheme (常用字廣州話讀音表),ILE scheme, andCantonese Pinyin,^[1] is aromanization system forCantonese developed by Ping-Chiu Thomas Yu (Chinese:余秉昭) in 1971,^[2][3] and subsequently modified by the Education Department of Hong Kong (now theEducation Bureau) andZhan Bohui (詹伯慧) of the Chinese Dialects Research Centre of the Jinan University, Guangdong, PRC, and honorary professor of the School of Chinese, University of Hong Kong. It is the only romanization system accepted byEducation and Manpower Bureau of Hong Kong andHong Kong Examinations and Assessment Authority^{[citation needed]}.

The Institute of Education in its name refers to the Institute of Language in Education^[4]: 487 (語文教育學院^[4]: 423), which later became part of the Hong Kong Institute of Education, now theEducation University of Hong Kong.

The ILE system directly corresponds to theS. L. Wong system, anIPA-based phonemic transcription system used inA Chinese Syllabary Pronounced According to the Dialect of Canton byWong Shik Ling. Generally, if an IPA symbol is also abasic Latin letter, the same symbol is used directly in the romanization (with the exception of the IPA symbol "a"); and if the IPA symbol is not a basic Latin letter, it is romanized using basic Latin letters. Thus,/a/→aa,/ɐ/→a,/ɛ/→e,/ɔ/→o,/œ/→oe,/ŋ/→ng. This results in a system which is both easy to learn and type but is still useful for academics.

In the following table (based on Zhan's variant), the first row inside a cell shows the ILE, the second row shows a representative "narrow transcription" in IPA, while the third row shows the corresponding IPA "broad transcription" using the S. L. Wong system.

• The finalsm andng can only be used as standalonenasal syllables.

The system recognises ninetones in six distincttone contours.

ILE and theYale romanization system represent Cantonese pronunciations with these same letters:

• Theinitials:b,p,m,f,d,t,n,l,g,k,ng,h,s,gw,kw,w.
• Thevowels:aa (except when used alone),a,e,i,o,u.
• Thenasal stops:m,ng.
• Thecodas:i (except for being thecoda[y] in Yale),u,m,n,ng,p,t,k.

But they have these differences:

• Thevowelsoe represent[ɵ] and[œː] in ILE while theeu represents both vowels in Yale.
• The vowely represents[y] in ILE while bothyu (used innucleus) andi (used incoda) are used in Yale.
• Theinitialj represents[j] in ILE whiley is used instead in Yale.
• The initialdz represents[ts] in ILE whilej is used instead in Yale.
• The initialts represents[tsʰ] in ILE whilech is used instead in Yale.
• In ILE, if noconsonant precedes the vowely, then the initialj is appended before the vowel. In Yale, the corresponding initialy is never appended beforeyu under any circumstances.
• Some newfinals can be written in ILE that are not contained in Yale romanization schemes, such as:eu[ɛːu],em[ɛːm], andep[ɛːp]. These three finals are used in colloquial Cantonese words, such asdeu6 (掉),lem2 (舐), andgep9 (夾).
• To representtones, only tone numbers are used in ILE while Yale originally used tone marks together with the letterh (though tone numbers can be used in Yale as well).

ILE andJyutping represent Cantonese pronunciations with these same letters:

• Theinitials:b,p,m,f,d,t,n,l,g,k,ng,h,s,gw,kw,j,w.
• Thevowels:aa,a,e,i,o,u.
• Thenasal stops:m,ng.
• Thecodas:i (except for being thecoda[y] in Jyutping),u,m,n,ng,p,t,k.

But they have these differences:

• Thevowelsoe represent[ɵ] and[œː] in ILE whileeo andoe represent[ɵ] and[œː] respectively in Jyutping.
• The vowely represents[y] in ILE while bothyu (used innucleus) andi (used incoda) are used in Jyutping.
• The initialdz represents[ts] in ILE whilez is used instead in Jyutping.
• The initialts represents[tsʰ] in ILE whilec is used instead in Jyutping.
• To representtones, numbers 1 to 9 are usually used in ILE, although to use 1, 3, 6 to replace 7, 8, 9 is acceptable. However, only numbers 1 to 6 are used in Jyutping.

Sample transcription of one of the300 Tang Poems byMeng Haoran:

• Yu, Bingzhao (1982).同音字彙 [Rhyming Glossary]. Hong Kong: New Asia Publishing Company.OCLC 35516518.
• Zhan, Bohui (2004).廣州話正音字典 [Dictionary of Standard Cantonese Pronunciation]. Guangdong People's Publishing House.ISBN 9787218039770.

• Website of Standard Chinese in Hong Kong
• an IME software using ILE

• Cantonese romanisation
• Languages of Hong Kong
• Pinyin
• Writing systems introduced in 1971
• 1971 establishments in Hong Kong

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