XMI 1.2 MAILINGLIST Avatar
  1. OMG Issue

XMI12 — "Inputs" that define an XMI metadata interchange format.

  • Key: XMI12-62
  • Legacy Issue Number: 3896
  • Status: open  
  • Source: DSTC ( Stephen Crawley)
  • Summary:

    In XMI 1.0, an XMI metadata interchange format (i.e. the XMI DTD and
    associated
    encoding rules) was determined solely by the metadata's MOF meta-model.

    In XMI 1.1, various additions were made that meant that this is no
    longer
    the case. An XMI 1.1 format now also depends significantly on other
    "input parameters". This includes:

    1) The XML namespace used to abbreviate element names

    2) The so called "domain datatype meta-model" and its relations to
    the main meta-model.

    3) Any custom rules for converting between data values and XML
    strings.

    4) Whether the format supports complete meta-models or incomplete
    meta-models.

    Since differences in any one of these parameters (or the MOF meta-model)
    result in non-interoperable XMI formats, it is crucial that
    meta-modellers
    define the parameter values, explicitly and clearly. Without this,
    implementation of "standard" XMI formats is a matter of guesswork.

    The XMI spec should say precisely what parameters effect the XMI
    mappings,
    and how they should be specified for a "standard" XMI format.

    The examples in the XMI spec, and particularly the Appendices should
    state
    what parameters have been used.

  • Reported: XMI 1.1 — Fri, 22 Sep 2000 04:00 GMT
  • Updated: Wed, 11 Mar 2015 11:11 GMT