Q1.a) Based on the business rules, you are expected to construct an Entity-Relationship (ER) diagram. The ER diagram should include entities, attributes (if there are less than three specified in the business statements, please add some extra attributes), identifiers and corresponding data types, the relationships among entities with cardinality and associative entities.
.b) Extend Q1.a) to apply generalization/specialization technique to construct an Enhanced-ER (EER) diagram. The EER diagram should specify the complete (total) and disjoint (mutuallyexclusive) constraints on the generalization/specialization. You do not have to draw the entire diagram again. You have to include entities that are part of inheritance. If these entities have relationships with other entities, include those relationships and related entities also.
.c) Create relational model for these specific relationships. The relational model should include relations, fields, primary and foreign keys. 1)Booking and payment 2)Part-time mechanics and branch 3) Manufacturer and car
Q1.a) Based on the business rules, you are expected to construct an Entity-Relationship (ER) diagram. The...
3. (12 points) For each of the descriptions below, develop an ER diagram using draw.io. Create a new page in your draw.io file for each diagram and name them appropriately (e.g., “3a” and “3b”). Include entities, attributes (identifier, simple, composite, derived), relationships (cardinality, modality). a. A car company has a database where each car has an identifying serial number and a manufacturing completion date. Each car is an example of a certain model. All models have an identification number, name...
c) Write an ER Diagram for the following Library database. Identify all the Entities, Relationships and Attributes. Underline the primary keys and mark the different constraints. You can add an I attribute as a primary key for an entity to make t unique if necessary. Library has a number of branches in the city, each branch having a name, address and librarian. Books have title, authors and publisher. A book can have multiple authors but a single publisher. Note that same...
Design the entity relationship conceptual schema. Depict the ER diagram you have designed, outlining the entity types, relationship types, their respectives attributes, keys, structual constraints, and role names. In designing the entity relationship schema, make the initial conceptual design and the neccessary refinements after that. This will be a hospital database hospital, include patients, each patient will be either inpatient or outpatient and have a unique ID, first name, last name, address, city, zip code, phone number, and room number....
1) Create Conceptual Schema Diagram 2) Create a fully attributed Loagical Data Model Diagram 3) Create the SQL script that will generate the data model Develop an EER model for the following situation using the traditional EER notation, the Visio notation, or the subtypes inside supertypes notation, as specified by your instructor: Wally Los Gatos and his partner Henry Chordate have formed a new limited partnership, Fin and Finicky Security Consultants. Fin and Finicky consults with corporations to determine their...
Draw YOUR entity relationship diagram (ERD) using Crow's foot notation to indicate entities, relationships, connectives, and participations. The administrators of Tiny College are so pleased with your design and implemen- tation of their student registration and tracking system that they want you to expand the design to include the database for their motor vehicle pool. A brief description of operations follows: • Faculty members may use the vehicles owned by Tiny College for officially sanc- tioned travel. For example, the...
Create an Entity-Relationship Diagram (ERD).In the ERD include the following: entities primary keys for all entities attributes - use "good" names for attributes, use only single-valued attributes relationships - use Crow's foot or UML notation; name relationships that could be ambiguous cardinality - minimum (optional/mandatory) and maximum (one or many) on both ends of the relationship - use reasonable assumptions if there is insufficient information in the descriptionStudent/Course registration system for a universityStudents have a unique identification number, first name, middle initial, last name, year...
Would you please help me with this homework ? 1- Explain what requirements this ER diagram is implementing 2- Draw an ER diagram (relationships) for the following business rules in a company: • A salesperson manages one or many other salespeople while a salesperson is managed by only one salespeople. • A salesperson can be an agent for many customers but a customer is managed by only one salesperson. • A customer can place many orders. But an order can...
You were requested to design a database to store the data concerning a large mechanic shop. Your database has to store the following: For each car, you want to store the make, model, year, color, engine info, license plate, VIN (vehicle identification number), and a field for general notes. Additionally, for each car, you need to keep information about the owner. For each owner, you need to store the client ID, the name, address information, phone number, and email. An...
Question 1. Prepare an Entity-Relationship diagram for the following requirements of a medical clinic The clinic has a set of patients and a set of specialist medical doctors. A doctor sees many patients and a patient may have many doctors Patients take various tests. Many specialist doctors may consult on a test and recommend it. A doctor can recommend many tests However, a test is only for one patient. So I get blood pressure tested but it cannot be for...
Design ER diagrams for the three problems below based on the information given. Use Visio or another drawing program: I will not grade hand-drawn diagrams. Your diagrams will include entities, attributes, relationships, candidate keys (PKs), and cardinality and participation constraints. Use the style of ER notation shown in the ER slides (also in Elmasri & Navathe, 6th edition, Figure 7.2 and Figure 7.14). Be sure to use good naming practice with your entities, relationships, and attributes. If you make any...