Part 2: Relational data model. Take a subset of the ideas from the conceptual model you constructed in Part 1 and design a simple relationship model similar to the ones we discussed in Module 2, Video 4 Your model should have at least 5 tables You should include at least 20 attributes, or fields, in your model (20 total across all tables, not per table) Your model should be normalized Identify the primary key in each table, and state whether it is a natural or surrogate key For each relationship between tables, identify any foreign keys needed to define the relationship For each table, identify what type of system or systems you think the data might come from, like those we discussed in Module 1, Video 6.

Q: For questions 1 through 3, state whether the statements are True or False (Do not provide any…

A: The solution is given in the below step Explanations are also given for your understanding only

Q: Given the following EER diagram, write down the corresponding relations using the method taught in…

A: The answer is

Q: When converting an ERD to a database design, Foreign key(s) for a M:N (many-many) relationship are…

A:

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: When translating an ER model into database tables   a.) all of the entity attributes become the…

A: Here is the solution:

Q: Read the following business rules carefully and use common sense when necessary to come up with a…

A: Our model accounts for various core entities within the healthcare clinic, including patients,…

Q: 1. Create 1-NF Normalization and define repeating groups 2. Create 2-NF Normalization and define…

A: Since multiple staff ID and staffName exist with single report, hence in 1NF, we need to seperate…

Q: 1. Total participation is where each entity participates in at least one relationship in the…

A: 1- True, Each entity in the entity set is involved in at least one relationship in a relationship…

Q: For questions 1 through 3, state whether the statements are True or False (Do not provide any…

A: Determine whether the following statements are true or false without explanation: "Logical data…

Q: What do business rules NOT help define within a data model? a.) Attributes b.)…

A: Data-driven business rules are constraints on specific data values. These constraints must be true…

Q: Help normalize this into 4NF and make a diagram please? Or just explain the relations I should do.…

A: Here are the problems in existing table / relation: - Address and email are combined into a single…

Q: Why is it important to differentiate between derived and stored attributes in data modeling?

A: Data modeling plays a pivotal role in the world of databases and information management. It involves…

Q: [1] carRepair.dia 00.00 date description 1 techID techName mentor Mentors supID supName Supervisor N…

A: Solution:

Q: It is known that we should avoid redundant data. Let’s say you have a Product Table with the cost of…

A: Database Design:- As the user’s requirements change,so developers need to change DBMS from time to…

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.