Database Entities

Produce an ER Model for the following scenario (presented in Step 1 below) and business need, for the Pythagoras Math Academy.Deliverables:ER Model for the scenario presented.· You have the option to use MS Visio (if you have the software) to produce your ER Model.· Alternatively, if you do not have MS Visio, you can use the ERD PLUS (Open source ER Modeling Software) and produce your ER ModelLab Steps:Step 1: Read and understand the Scenario and Business needs presented below. Define and document the ENTITIES, and RELATIONSHIPS, required to address the business needs. The nouns in the scenario below will give the ENTITIES that you will need. Finally, the verbs will describe the RELATIONSHIPS.Scenario and Business Need:The Pythagoras Math Academy is in need to develop a database to keep track and control of his students, teachers, and classes offered.Teachers are able to teach multiple courses. But they are required to be certified on the course they are teaching. For example, only a group of teachers are certified to teach Algebra, and other Geometry.Students can take multiple courses. Courses are taught by teachers with the proper certification and have multiple certs as needed. Courses are taught in one of the classrooms at one of the School’s several sites.Each classroom is optimized to serve the needs for a course (for example some courses might require computer labs and whiteboards). The school needs to keep track of the math courses delivered in each of the sitesStep 2: For this project, you are required to use MS Visio or ERD PLUS to produce the deliverables.If you are using MS Visio follow the steps below:· Open MS Visio· Click on the Software Database Template in the main window· Select the Database Model Diagram Template to open a new file.If you are using ERD PLUS.· From the ERP PLUS main interface, select DOCUMENTS –> NEW DIAGRAM (NAME YOUR DIAGRAM) –>ER DIAGRAM –> CREATEStep 3: Define and Database ENTITIES· Add an entity for each Table you identified in the Scenario and Business Need.Step 4: ADD the required ENTITY ATTRIBUTES· Add the required Attributes for each Entity that you feel would help to define each Entity as needed.· Select one of the attributes to be PRIMARY KEY (PK)Step 5: Define RELATIONSHIP· Use the Crow’s Feet Notation.· Drag and drop (draw) relationships between the entities you defined.· Connect the ends to the two entities for each relation.· Defined the Primary Key for the parent entity.Step 6: Define CARDINALITY RELATIONSHIPSet the cardinality for each of your relationships defined in Step 5.For MS Visio: select a relationship line in the drawing area that is connecting two entities. In the Database Properties window, select the miscellaneous category. Select the cardinality for the selected relationship.

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