Entity Relationship Diagram (ERD) is a diagram used for construction of database. Entity Relationship Diagram labels and manages each stakeholder and arranges them in the database for easier access. An Entity Relationship Diagram also connects those stakeholders and displays relationships of these stakeholders between each other. For software system, such database in crucial part for its daily operations. In software development, ERD can also have another names, such as ER Diagram or ER model. In those diagrams, we observe major entities in the system, attributes of these entities and the inner relationships between these entities. Typically, there are three types of entity relationship diagrams: conceptual, logical and physical. During creation of ERD, we must have a clear vision and understanding of what is the purpose of this database. Next, we must identify all stakeholders and label them as entities. After that, we must give each entity attributes. And lastly, we must determine and label the relationship between these entities.
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ERD identifies object down to its last components. I do find it very interesting how the diagram is set up. What can’t ERD be used for?
Hi Levan. Your post gave me an better understanding of ERD. I know its a diagram that connects entities. But you broke down how it is used for stakeholders, which was interesting to read. Thank you for your informative post.
Hello Levan, I wanted to express my gratitude for your informative post on ERD. It has greatly improved my comprehension of this type of diagram, which serves to connect entities. Your explanation of its relevance to stakeholders was particularly intriguing to me. Once again, thank you for sharing this valuable information – I thoroughly enjoyed reading your post!