Sign in

Influence of Missing Terms on the API results

March 6, 2026 02:40 AM
1 min read

Some variables or their constants may not be found within the target scope during transformations. In these cases, the term Missing Term is used. Missing Term is a Term which contains at least one ID that is not in the target Scope. Any Missing Terms transform into a “False” constant value while solving a Scope.

  • Example

The target Scope contains the “Color” variable, which contains “Red” and “Black” Named Constants:

<Item type="Scope" id="ScopeId">

    <name>ScopeName</name>

    <Relationships>

       <Item type="Variable" id="ColorVariableId">

           <id>ColorVariableId</id>

           <name>Color</name>

           <Relationships>

              <Item type="NamedConstant" id="NamedConstantId_1">

                  <id>NamedConstantId_1</id>

                  <name>Red</name>

              </Item>

              <Item type="NamedConstant" id="NamedConstantId_2">

                  <id>NamedConstantId_2</id>

                  <name>Black</name>

              </Item>

           </Relationships>

       </Item>

    </Relationships>

</Item>

Consider the following expression concerning the target Scope:

<expression>

    <eq>

       <variable id="ColorVariableId" />

       <named-constant id="NamedConstantId_1" />

    </eq>

    <eq>

       <variable id="ColorVariableId" />

       <named-constant id="NamedConstantId_2" />

    </eq>

    <eq>

       <variable id="ColorVariableId" />

       <named-constant id="NamedConstantId_3" />

    </eq>

</expression>

In this case, the following term from the expression is considered as a Missing Term:
<eq><variable id="ColorVariableId” /><named-constant id="NamedConstantId_3" /></eq> As result, the whole expression will be converted to “False”.