Why is it that in the example provided, the relationship between Item and Material is defined as a Composition, but the relationship for Order and Item is not defined as a Composition? An Item cannot exist without an Order. I'm I understanding something wrong?
very well explained, Ajay.
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Why is it that in the example provided, the relationship between Item and Material is defined as a Composition, but the relationship for Order and Item is not defined as a Composition? An Item cannot exist without an Order. I'm I understanding something wrong?