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Products may exist in a hierarchy of relationships with related Products. If a Producer deems these hierarchy relationships are relevant to the current Problem or Resolution, then the position of the Product in a hierarchy can be implied using one of two types of relationships: 'is a' and 'has a'. An 'is a' relationship implies a classification, such as versioning or typing. A 'has a' relationship implies that one product contains another. The PRS_ProductParentChild association is used to imply an 'is a' hierarchy. Use the ProductComponent association to imply 'has a' relationships.
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