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The process of transforming an

$gterm

to a

$gterm

is based on the

$gterm

definitions of the

$gterm

referenced by the

$gterm

. Using this approach,

$gterm

that are authored, stored and/or communicated in a relatively informal close-to-user form are logically transformed into a common normalized form. In this normalized form it is possible to apply simple rules to test subsumption between

$gterm

.

The simplest case of a valid close-to-user

$gterm

is a single conceptId, and the approach described can be applied to these simple

$gterm

, as well as to more complex

$gterm

that include multiple conceptIds and

$gterm

(

$gterm

).

The approach to normalization may be applied to specific

$gterm

but may also be extended to take account of contextual information derived from the information model in which the

$gterm

is situated. Therefore, the

$gterm

may include

$gterm

context information, even if this is not present in the initial

$gterm

.

The algorithm extends earlier work on

$gterm

as follow:

  • Normalizes

    $gterm

    values within definitions or

    $gterm

    producing nested

    $gterm

    that are fully normalized .
  • Merges

    $gterm

    stated in an

    $gterm

    with definitional

    $gterm

    present in the definitions of the

    $gterm

    referenced by the

    $gterm

    :
    • The merge process takes account of

      $gterm

      that may not be grouped or nested in a manner that precisely reflects the structure of a current (or future)

      $gterm

      definition;
    • This avoids the need to add, store and communicate potentially spurious detail from current definitions to the

      $gterm

      recorded by a user or software application.
  • Takes account of context rules including default context and a preliminary approach to moodCode mapping and handling of procedures with values (present in algorithm but not yet easily visible in test environment).
  • Supports

    $gterm

    that take account of finding specified with

    |known absent|

    finding context.

illustrates an overview of the process of normalization of an

$gterm

. Subsequent sections describe the processes shown in this diagram.

Figure 57. Overview of expression normalization process


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