Using the above table structure, create a normalized Entity-Relationship Model (ERM). Identify Primary Key(s) and Foreign Key(s) for all the entities, connectivities and/or cardinalities, and relationships between the entities. As for Chen's ERM notation and the normalization, the level should be in Third Normal Form (3NF) and above. [Note: you do notneed to show the normalization process such as the functional dependency diagram.]

Q: In your group, you will need to create an entity relation (E-R) diagram using the Crow's foot…

A: Given, The answer is given below Note: As Microsoft Visio is paid software(Unavailable freely). so,…

Q: The crow's foot in a diagram a.) is only used to show N:M relationships. b.) shows the relationship…

A: Crow's foot Diagram contains crow foot notation in which the cardinality and modality of the…

Q: Regards to the diagram below (figure 4.12), answer the following questions using the multiple-choice…

A: The answers for the following question can be derived from the diagram given. How is of_type…

Q: Why are weak and strong entity sets different?

A: Entity sets in database design refer to collections of related entities or objects. Weak entity sets…

Q: QUESTION 4   For the following collection of entities, give the assumptions concerning the…

A: Given entities: ORDER (order#, ordDate, cust#, cName ) ORDER_PART ( order#, part#, quantity )  PART…

Q: Give a Relational Model that corresponds to the Entity-Relationship Diagram in Figure 1. You must…

A: Relational Database schema is given below :

Q: The difference between a weak entity set and a strong entity set should be explained.

A: Strong Entity:  A powerful entity does not rely on any other entity in the schema for its existence.…

Q: Use Figure 2 provided in the handout in order to answer this question.  Using any software of…

A: The three new relations can be created for meeting the 3NF requirements. These are as follows:…

Q: 1. Describe entity constraint in your own words  2. what type of key satisfies the uniqueness…

A: This constraint says that the primary key of a table can never be a null value. The primary key is…

Q: Explain the significance of cardinality in relationships between entities.

A: The concept of cardinality in Entity Relationship (ER) modeling refers to the aspect of…

Q: Describe how functional dependencies may be used to show: • There is a many-to-one connection set…

A: Recognizing functional dependencies: The functional dependencies may be used to identify the…

Q: We can convert any weak entity set to a strong entity set by simply adding appropriate attributes.…

A: Explanation: Weak entity set avoids the data duplication and consequent possible inconsistencies…

Q: Transform an entity-relationship (E-R) diagraminto an equivalent set of well-structured(normalized)…

A: Lets see the solution.

Q: Define three conditions under which it is appropriate to use a surrogate key in place of the primary…

A: Prerequisites for the suggestion of a surrogate key. There are three circumstances that indicate it…

Q: Lab 3: Normalization Assignment: Problem #11 from Chapter #6. (Be sure to note that this is PROBLEM…

A: The relation schema for the table structure is given below, CHARTER (CHAR_TRIP, CHAR_DATE,…

Q: Give a Relational Model that corresponds to the Entity-Relationship Diagram in Figure 1. You must…

A: Entity Relationship diagram mainly contains 3 components, that are Entities, Relationships and…

Q: Explain how functional dependencies can be used to indicate the following:• A one-to-one…

A: The functional dependency is a relationship that exists between two attributes. It typically exists…

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.