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Isabelle Colas

Policy Research Specialist

United States of America

Biography

Isabelle joined ICANN in September 2018 and is responsible for supporting the Policy Research and Stakeholder Programs team within ICANN’s Global Domains and Strategy department.

Her areas of focus include activities related to Registration Data Directory Services such as the Expedited Policy Development Process (EPDP) on the Temporary Specification for gTLD Registration Data in addition to drafting papers, conducting research, and assisting in drafting policy to support wide-ranging policy development and implementation projects. She received her Master in International Public Health from the University of Liverpool and her Bachelor of Arts in Psychology from Saint Louis University. Isabelle also studied Impact Measurement and Management at Oxford Saïd Business School and Women’s Leadership at Yale University. Isabelle is fluent in English, and Haitian Creole speaks proficient French and basic Spanish.

Domain Name System
Internationalized Domain Name ,IDN,"IDNs are domain names that include characters used in the local representation of languages that are not written with the twenty-six letters of the basic Latin alphabet ""a-z"". An IDN can contain Latin letters with diacritical marks, as required by many European languages, or may consist of characters from non-Latin scripts such as Arabic or Chinese. Many languages also use other types of digits than the European ""0-9"". The basic Latin alphabet together with the European-Arabic digits are, for the purpose of domain names, termed ""ASCII characters"" (ASCII = American Standard Code for Information Interchange). These are also included in the broader range of ""Unicode characters"" that provides the basis for IDNs. The ""hostname rule"" requires that all domain names of the type under consideration here are stored in the DNS using only the ASCII characters listed above, with the one further addition of the hyphen ""-"". The Unicode form of an IDN therefore requires special encoding before it is entered into the DNS. The following terminology is used when distinguishing between these forms: A domain name consists of a series of ""labels"" (separated by ""dots""). The ASCII form of an IDN label is termed an ""A-label"". All operations defined in the DNS protocol use A-labels exclusively. The Unicode form, which a user expects to be displayed, is termed a ""U-label"". The difference may be illustrated with the Hindi word for ""test"" — परीका — appearing here as a U-label would (in the Devanagari script). A special form of ""ASCII compatible encoding"" (abbreviated ACE) is applied to this to produce the corresponding A-label: xn--11b5bs1di. A domain name that only includes ASCII letters, digits, and hyphens is termed an ""LDH label"". Although the definitions of A-labels and LDH-labels overlap, a name consisting exclusively of LDH labels, such as""icann.org"" is not an IDN."