tual diagram, you need to show all the relationships and data types apply (include all the entities from the case study above)

Define the terms "entity," "attribute," and "relationship" in the context of entity-relationship diagrams (ERDs). How are they used in data modeling?

What components go into constructing a descriptive model?

ER model relationships are represented using  a.) relationship keys b.) primary keys c.) crows foot symbols d.) main keys     What do the cardinalities in an ER model show, (please select all that apply)? a.) only a one to one relationship. b.) the minimum number of entities that can be involved in a relationship. c.) only a many to many relationship.

Explain the usage of attributes and the generic name for attribute in the relationship model.

Write good names and definitions for entities, relationships, and attributes.

I have this system, ERD (Entity-Relationship Diagram) Explanation: The ERD is a high-level representation of the data relationships in the ConfPlus Conference Management System. It shows the main entities, their attributes, and the relationships between them. Entities: User: Represents a user in the system, including authors, reviewers, and organizers. Attributes include UserID, Name, Email, Password, Affiliation, and Role. Paper: Represents an academic paper submitted to the conference. Attributes include PaperID, Title, Abstract, PDF, and SubmissionDate. Authorship: Represents the relationship between a User (author) and a Paper. Attributes include AuthorshipID, UserID, PaperID, and IsPresenter (to indicate if the author is the presenter of the paper). Review: Represents a review assigned to a paper by a User (reviewer). Attributes include ReviewID, UserID, PaperID, OverallEvaluation, Contribution, Strengths, Weaknesses, and ReviewDate. Conference: Represents the conference…

What exactly does it imply when we talk about the weak entity type? What exactly is the key? Please provide an example. What exactly is meant by the term "alternative specialisation"?Where exactly do I fit into the ER diagram? Provide an illustration, then draw a diagram that corresponds to it.

Describe what you did with the data prior to the modelling process (data cleaning). Show histograms of the one example variable before and after any pre-processing that you carried out. If you corrected any mis-typed entries in the data, report what you changed. Carry out descriptive analysis and explain each what they represent, use as many graph as possible and provide the descriptions

What two pitfalls must we avoid when designing a schema with an ER diagram?     redundancy     incompleteness     atomic design     complex data types