**PROPOSAL FOR A NEW WORK ITEM**

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  Date of presentation of proposal:\          Proposer:\
  2003-07-19                                  ISO/IEC JTC 1/SC 34

  Secretariat:\                               **ISO/IEC JTC 1/SC 34 N
  ANSI                                        432**
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**A proposal for a new work item** shall be submitted to the secretariat
of the ISO/IEC joint technical committee concerned with a copy to the
ISO Central Secretariat.

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| **Title**                                                             |
|                                                                       |
| TR 9573-13 - Information technology -- SGML support facilities --     |
| Techniques for using SGML -- Part 13: Public entity sets for          |
| mathematics and science (2^nd^ Edition)                               |
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| **Scope** (and field of application)                                  |
|                                                                       |
| Tens of thousands of graphic characters are used in publishing text,  |
| a large proportion of which have been defined in ISO/IEC 10646. Even  |
| where standard coded representations exist, however, there may be     |
| situations in which they cannot be keyboarded conveniently or         |
| accurately, or in which it is not possible to display the desired     |
| visual depiction of the characters.                                   |
|                                                                       |
| To help overcome these barriers to the successful interchange of SGML |
| and related documents, this part of ISO/IEC 9573 defines character    |
| entity sets for some widely uses special graphic characters regularly |
| used in the production of scientific and mathematical documents.      |
|                                                                       |
| In many instances upper- and lower-case is used to differentiate the  |
| names of entities. It is assumed that any SGML concrete syntax used   |
| in conjunction with these entity names will be case sensitive, as is  |
| the case with the W3C XML subset of SGML                              |
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| **Purpose and justification**                                         |
|                                                                       |
| ISO/IEC 10646 was not available when the original Part 13 of ISO/IEC  |
| TR 9573-13 was prepared, so the standard could contain no form of     |
| standardized mapping to characters sets. Until the full range of      |
| mathematical and scientific characters were added to ISO/IEC 10646 no |
| standard mappings could be described. As a result, different people   |
| have created different mappings over time, with the effect that       |
| certain applications have trouble in interworking.                    |
|                                                                       |
| Now that ISO/IEC 10646 has been updated to include the majority of    |
| characters defined in ISO/IEC TR 9573-13 it is possible to a) provide |
| standardized mappings to ISO/IEC 10646 characters b) resolve          |
| inconsistencies between the different entity sets in ISO/IEC TR       |
| 9573-13 which have, over time, become mapped to the same ISO/IEC      |
| 10646 character, meaning that two standard entity names have been     |
| defined for the same character. This will create a second edition of  |
| the new work                                                          |
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| **Programme of work**                                                 |
|                                                                       |
| If the proposed new work item is approved , which of the following    |
| document(s) is (are) expected to be developed?\                       |
| \_\_\_\_ a single International Standard more than one International  |
| Standard (expected number: \...\..... )\                              |
| \_\_\_\_ a multi-part International Standard consisting of            |
| \...\...\.... parts\                                                  |
| \_\_\_\_ an amendment or amendments to the following International    |
| Standard(s) \...\...\...\...\...\...\...\...\...\...\...\...\         |
| \_X\_\_ a technical report , type 1                                   |
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| **Relevant documents to be considered**                               |
|                                                                       |
| ISO/IEC TR 9573-13                                                    |
|                                                                       |
| ISO/IEC 10646:2000 + Amd. 1                                           |
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| **Cooperation and liaison**                                           |
|                                                                       |
| This work is being undertaken in collaboration with members of the    |
| W3C Math Working Group who are responsible for maintaining the W3C    |
| Mathematical Markup Language (MathML). The work is being reviewed by  |
| the American Mathematical Society (AMS), who advised on the           |
| development of the first edition of ISO/IEC 9573-13. Liaison has also |
| been with the developers of the DocBook application for electronic    |
| publication, who use the original entity definitions for scientific   |
| publication applications.                                             |
|                                                                       |
| JTC1 SC2 will be asked to review work                                 |
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| **Preparatory work offered with target date(s)**                      |
|                                                                       |
| PDTR (CD) ballot simultaneous with NP (see SC 34 N 433)               |
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| **Signature:**                                                        |
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| Will the service of a maintenance agency or registration authority be |
| required? ..NO\...\...\...\...\                                       |
| - If yes, have you identified a potential candidate?                  |
| \...\...\...\...\....\                                                |
| - If yes, indicate name                                               |
| \...\...\...                                                          |
| \...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\...\.... |
|                                                                       |
| Are there any known requirements for coding? \...\.....NO\...\.....\  |
| -If yes, please specify on a separate page                            |
|                                                                       |
| Does the proposed standard concern known patented items?              |
| \...\....NO\...\....\                                                 |
| - If yes, please provide full information in an annex                 |
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**Comments and recommendations of the JTC 1 Secretariat** - attach a
separate page as an annex, if necessary

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  **Comments with respect to the proposal in general, and recommendations
  thereon:**\
  It is proposed to assign this new item to JTC 1/SC34 WG1

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**Voting on the proposal** - Each P-member of the ISO/IEC joint
technical committee has an obligation to vote within the time limits
laid down (normally three months after the date of circulation).

  ------------------- ----------------------- ---------------------------
  **Date of           **Closing date for      **Signature of JTC 1/SC 34
  circulation:**\     voting:**\              Secretary:**\
  2003-07-28          2003-10-28              Sara Desautels

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  ***NEW WORK ITEM PROPOSAL -                    
  PROJECT ACCEPTANCE CRITERIA***                 

  **Criterion**                   **Validity**   **Explanation**

  **A Business Requirement**                     

  A.1 Market Requirement          Essential      Meeting needs of users,
                                  \_\_\_\        who have specifically
                                  Desirable      asked for clarification
                                  \_X\_\         on interpretation of TR
                                  Supportive     in new environments
                                  \_\_\_         

  A.2 Regulatory Context          Essential      Will ensure more
                                  \_\_\_\        consistent use of ISO/IEC
                                  Desirable      10646 character sets in
                                  \_X\_\         structured document
                                  Supportive     applications
                                  \_\_\_\        
                                  Not Relevant   
                                  \_\_\_         

  **B. Related Work**                            

  B.1 Completion/Maintenance of   Yes \_X\_\     Will extend existing
  current standards               No\_\_\_       standard to make it
                                                 easier to apply

  B.2 Commitment to other         Yes \_X\_\     Request from W3C working
  organization                    No\_\_\_       group

  B.3 Other Source of standards   Yes \_X\_\     Used in W3C XML standards
                                  No\_\_\_       such as MathsML

  **C. Technical Status**                        

  C.1 Mature Technology           Yes \_X\_\     Widely used in industry
                                  No\_\_\_       today

  C.2 Prospective Technology      Yes \_\_\_\    
                                  No_X\_         

  C.3 Models/Tools                Yes \_X\_\     Existing Internet tools
                                  No\_\_\_       support the entity sets

  **D. Conformity Assessment and                 
  Interoperability**                             

  D.1 Conformity Assessment       Yes \_X\_\     
                                  No\_\_\_       

  D.2 Interoperability            Yes X          

  **E. Other Justification**                     
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