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Which of the following notations in an E-R diagram means that the entity is optional and a relationship need not have an entity of that type?
Q6: Which of the following value chain activities
Q10: The crow's-foot notation in an E-R diagram
Q35: In the context of shared content with
Q50: Explain the importance of using task lists.
Q53: Describe how native applications are developed.
Q68: Organizations can lock in suppliers either by
Q71: Which of the following conditions exists when
Q94: An organization uses a formula to compute
Q98: The procedures for using workgroup information systems
Q98: _ contains much metadata that can be