Consider Twitter, is a social network platform where the user sends tweets of 280 characters. Each tweet may have a number of hashtags. (a hashtag is a string starting with #) • We record the time and location of each tweet. A tweet may include up to four media items (either a photo or a video) A tweet may refer to a user User can follow a user or Topic • Multiple tweets can belong to a topic, a topic is identified by name Each tweet is automatically assigned a topic To use Twitter, a user must register by his(her) email, phone number, and user name. Design an entity-relationship diagram

Q: Code for Mapping relationship with Entity Framework Code First: One-to-one and variations

A: Code to map one-to-one type relationships using Entity Framework.

Q: What are the contents of UML behaviour diagrams?

A: What are the contents of UML behaviour diagrams?

Q: Explain entity-relationship (ER) diagrams.

A: Please find the detailed answer in the following steps.

Q: design an Enhanced Entity Relationship (EER) diagram Topic: Locomotives The ERR diagram should…

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Q: What exactly is the difference between a weak entity and one that needs communication to function…

A: find your answer below

Q: List the Entity-Relationship (ER) model's various characteristics.

A: - We need to list the characteristics of Entity-Relationship model.

Q: What distinguishes a weak entity set from a strong entity set?

A: In database design, an entity set is a group of similar entities, such as customers or products. An…

Q: Question: Give the type(s) of UML diagram that can be used for modeling behavior that spans multiple…

A: In this question we have to understand about the types of UML diagram that can be used ofr modeling…

Q: The distinction between a weak and a strong entity collection has to be clarified.

A: In the context of entity collections in a database or data modeling, the distinction between weak…

Q: The structural diagram should be described. In a structure chart, modules may be used as examples to…

A: Answer Structure Chart- A structure chart is a sort that depicts the specific structures of all…

Q: When is it necessary to represent a many-to-many connection using an associated entity?

A: According to the question Many-to-many connections are likely the trickiest connections to uncover…

Q: List the Entity-Relationship (ER) model's various characteristics.

A: Introduction: The Entity-Relationship (ER) model is a conceptual data model used to show how…

Q: The structural diagram should be described. In a structure chart, modules may be used as examples to…

A: We need to discuss the structural diagram and it's types, and use of transform analysis.

Q: Crow-foot symbol in a crow-foot diagram is depicted on a side of entity which is     one only…

A: 1) Crow’s foot notations illustrate the relationship between entities in a crow’s foot diagram. 2)…

Q: The distinction between a weak and a strong entity collection has to be clarified.

A: In the context of entity-relationship modeling, the terms "weak entity collection" and "strong…

Q: Write the differences between composition and aggregation relations of UML diagram with examples.

A: UML diagram: UML diagrams are graphical representations of a software system and its components.…

Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.