Prestaciones adicionales > Manufacturing Process Management > Transforming an eBOM into an mBOM > Creating an mBOM > Overview of Generate Downstream Structure Action > Use Cases: Generate Downstream Structure > Use Case 6: Generate a Downstream Structure by Mapping Two Different Usage Attributes
  
Use Case 6: Generate a Downstream Structure by Mapping Two Different Usage Attributes
Consider that the following structure is present in the BOM Transformer:
An equivalent link exists between the Upstream Parent Part (Design) and Downstream Parent Part (Manufacturing).
1. Access the associativity.properties.xconf file located in Windchill/codebase/com/ptc/core/foundation/associativity.
2. Add the following restructuring rules:
<Property name="com.ptc.windchill.associativity.reconciliation.addusage.wt.part.WTPart" multivalued="," default=""/>
<AddToProperty name="com.ptc.windchill.associativity.reconciliation.addusage.wt.part.WTPart" value="transformoption=newPart"/>
<AddToProperty name="com.ptc.windchill.associativity.reconciliation.addusage.wt.part.WTPart" value="targetType=wt.part.WTPart"/>
<AddToProperty name="com.ptc.windchill.associativity.reconciliation.addusage.wt.part.WTPart" value="attributeMapping.rule1=Attribute1:String1:Attribute2:String1"/>
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After you initiate the action on the selected part in the upstream, the Windchill system traverses the structure below the selected part. This configuration ensures that :
If the Windchill system detects a part with the part usage attribute Attribute1 set to String1, then the detected part is added in downstream as a new part, under the part whose part type is wt.part.WTPart and part usage attribute Attribute2 is set to String1.
3. Select the Upstream Parent Part (Design) and click in the middle pane tool bar.
4. The following structure appears in the BOM Transformer:
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Part C1 (Manufacturing) and Part C2 (Manufacturing) are added as new parts under Part T1 (Manufacturing) based on the criteria set in the property.