Create an ER-Diagram which models the various Departments, Courses, Students, Employees of School of Computing & IT. The focus shall be given on the following parameters. i. Entities, Attributes, Relationship Integrity Constraints Participant Constraints Mapping Cardinality ii. iii. iv.
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- create an Enhanced Entity-Relationship (EER) diagram based on the provided information. Based on the following description, try creating the diagram using a tool such as draw.io, Lucidchart, or any other ER diagram tool: Entities: Person: person_ID (PK), name, address, birth date, phone number Subtypes: Employee, Physician, Patient, Volunteer Visit: date (PK, partial identifier), comments Care Centre: care_centre_ID (PK), name, location Laboratory: lab_ID (PK), name, location Bed: bed_number (PK), room_number, care_centre_ID (FK) Item: item_number (PK), description, unit_cost Treatment: treatment_ID (PK), treatment_number, treatment_name, treatment_date, treatment_time, results Relationships: Works_In (Person - Care Centre): Person (1, M) ----< Works_In >---- (1, M) Care Centre Assigned_To (Employee - Care Centre): Employee (1, M) ----< Assigned_To >---- (1, M) Care Centre Assigned_To (Physician - Care Centre): Physician (1, M)…Provide an Entity-Relationship Model for a motor sport fan, based onthe description in Table 1 on the next page.Present the model in the form of an Entity-Relationship diagram inChen notation. Make sure to identify special attributes (includingkeys) in the diagram and include participation and cardinality con-straint annotations for your relationships.Draw an ER diagram for the following scenario- • An instructor has an ID, a name, and a phone number. An instructor teaches a course • A course has a code, course name, credits, and an instructor. Each course uses a textbook. • A textbook has ISBN, name, publisher, editor, and authors. Your ER diagram should have entities, attributes, composite attribute, multivalued attribute, key attributes, binary relationships, and a total participation. Explain your rationale behind each design choice. Please draw the ER diagram on paper showing all seperate parts for each instructor, course and textbook. Showing each connection seperately and explaining which connection is which
- In an entity-relationship model, which of the following is a kind of attribute that should have some value, thus cannot be left empty? Choose an answer A Multivalued attribute B Required attribute C Simple attribute D Optional attributeBased on: Entity-Relationship Diagram with the following requirements: There are Professors (ie users) with the changeable attributes Professor_Name, Field, College, PhD_Date There are Flubs (ie posts) with the unchangeable attributes Content, Purpose, Moment, Inventor (which is the creating Professor) There are Bounces (ie shares) where a Professor can share another Professor's Flub Add ID attributes as necessary Content of Flubs only needs to be a text of fixed length Professors can have/be Colleagues (ie friends/followers) A Flub can get Citations (ie likes) by other Professors Show the Relational Algebra AND Domain Relational Calculus formulas for each. Show a portfolio of the Flubs by a Professor Show a portfolio of all Flubs and Bounces (the Flubs bounced) by all of a Professor's ColleaguesBased on: Entity-Relationship Diagram with the following requirements: There are Professors (ie users) with the changeable attributes Professor_Name, Field, College, PhD_Date There are Flubs (ie posts) with the unchangeable attributes Content, Purpose, Moment, Inventor (which is the creating Professor) There are Bounces (ie shares) where a Professor can share another Professor's Flub Add ID attributes as necessary Content of Flubs only needs to be a text of fixed length Professors can have/be Colleagues (ie friends/followers) A Flub can get Citations (ie likes) by other Professors Create the SQL for a single View called "Flubbergasting" of a Professor which includes all attributes from Entity-Relationship Diagram, as well as how many Flubs, the average number of Bounces the Flubs had, and total Citations across all Flubs by that professor.
- Draw an ER diagram for the EMU Slimming Center based on the specification given below. Case Study 01 There are many dietitians in the center. There are also many clients in the center. A dietitian gives a menu to a client every week. Many diet menus are available. A diet menu consists of many food items and each food items belongs to one food category. Instructions • Identify the relationship between Entities (clearly showing the cardinality and participation)what can be very interesting about the Entity-Relationship (ER) Modeling that people may forget about ( i am not talking about the main function or explication but just a concept/part that people tend to overlook when they study it for the first time?An instructor has several phone numbers. When reducing the ER diagram down to a schema this must be addressed. Which of the following statements are true? a. an instructors phone is what is known as a multi-valued attribute b. a multi-valued attribute of an entity is expressed as a separate schema with attributes including the primary key of the original entity and the multi-valued attribute c. the instructor should have a column for each type of phone number d. multi-valued attributes must be flatted out to a separate attribute for each component
- Draw an ER-Diagram for this situation and place minimum and maximum cardinalities on the diagram? Entity type: • EMPLOYEE with attribute: EmpID , Name (Firstname :besan, Lname) , Address :Amman, Birth_of_Date25/5/02 . • DEPARTMENT with attribute : DeptID , DeptName , Loc Relationship: Works_in Relationship between EMPLOYEE and DEPARTMENT and each employee is works in zero or many department and each department worked by one or many employee.Suppose that we wish to keep a genealogy. The information we wish to record about each person includes their name, date of birth, phone number, and degrees obtained . We also need to keep track of the mother, father, and children of each person. Draw a complete Entity-Relationship diagram. You must include all the details, sad as keys, weak entities (if any), cardinality constraints, etc. Your diagram must avoid redundancy.answer should be handwritten and the ER MODEL should be be completeDraw the Entity Relationship Diagram (ERD) with appropriate mapping cardinalities for the following scenario, Patients are treated in a single ward by the doctors assigned to them. Healthcare assistants also attend to the patients; a number of these are associated with each ward. Each patient is required to take a variety of drugs a certain number of times per day and for varying lengths of time. The system must record details concerning patient treatment and staff payment. Some staffs are paid part time and doctors and healthcare assistants work varying amounts of overtime at varying rates, the system will also need to track what treatments are required to what patients