The Entity-Relationship (ER) model was originally proposed by Peter Chen in 1976. An entity relationship diagram (ERD) is a graphical representation of entities and their relationships to each other, typically used for modeling the organization of data within databases or information systems.(Visit -- https://www.visual-paradigm.com/tutorials/how-to-model-relational-database-with-erd.jsp
UML Sequence Diagrams are interaction diagrams that detail how operations are carried out. They capture the interaction between objects in the context of a collaboration. Sequence Diagrams are time focus and they show the order of the interaction visually by using the vertical axis of the diagram to represent time what messages are sent and when. (Visit: https://www.visual-paradigm.com/guide/uml-unified-modeling-language/what-is-sequence-diagram/)
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