Additional Capabilities > 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 5: Generate a Downstream Structure With a Specific Structure Not Traversed Based on the Part
Use Case 5: Generate a Downstream Structure With a Specific Structure Not Traversed Based on the Part
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).
• All the parts in the structure, except Part C2 (Design), have the part type as wt.part.WTPart.
• Part C2 (Design) has the part type as ElectricalPart.
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=newBranch"/>
<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=AttributeNum1:String1:AttributeNum2:String2"/>
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In case of properties that involve mapping, the mapping attributes specified for upstream and downstream must not be the same.
<Property name="com.ptc.windchill.associativity.reconciliation.addusage.com.ptc.ElectricalPart" multivalued="," default=""/>
<AddToProperty name="com.ptc.windchill.associativity.reconciliation.addusage.com.ptc.ElectricalPart" value="transformoption=newBranch"/>
<AddToProperty name="com.ptc.windchill.associativity.reconciliation.addusage.com.ptc.ElectricalPart" value="doNotTraverse=true"/>
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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 AttributeNum1 set to String1, then the detected part is added in the downstream as a new branch, under the part whose part usage type is wt.part.WTPart and the part usage attribute AttributeNum2 is set to String2.
• If the Windchill system detects a part with the part usage type as ElectricalPart, then it is added as a new branch. However, the system does not traverse the structure below the detected part.
In this case, no property related to the mapping of an ElectricalPart is added. ElectricalPart is a subtype of wt.part.WTPart. ElectricalPart inherits the GDS-mapping property from the wt.part.WTPart.
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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• No property related to the mapping of an ElectricalPart is added. Still, Part C2 (Manufacturing) is added as a new branch under a downstream part with the part usage type as wt.part.WTPart and the part usage attribute AttributeNum2 set to String2. This is because, ElectricalPart is a subtype of wt.part.WTPart. ElectricalPart inherits the GDS-mapping property from the wt.part.WTPart. GDS-mapping property is defined for wt.part.WTPart.
• According to the criteria set in the <AddToPropertyname="com.ptc.windchill.associativity.reconciliation.addusage.com.ptc.ElectricalPart" value="doNotTraverse=true"/>, the structure under Part C2 (Design) is not transformed, as Part C2 (Design) is an ElectricalPart.
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