Question

what role does the er diagram play in the design process?​

Answer 1

Answer:

Role of the ER diagram play in the design process

A completed ER diagram is the actual blueprint of the database. Its compositionmust reflect an organization's operations accurately if the database is to meet thatorganization's data requirements.It forms the basis for a final check on whether theincluded entities are appropriate and sufficient, on the attributes found within thoseentities, and on the relationships between those entities. It is also used as a finalcrosscheck against the proposed data dictionary entries. The completed ER diagramalso lets the designer communicate more precisely with those who commissionedthe database design. Finally, the completed ER diagram serves as theimplementation guide to those who create the actual database. In short, the ERdiagram is as important to the database designer as a blueprint is to the architectand builder