Data Model: Data modeling is the process of creating the model for the data entities involved in the business system and their relationship between them. Entities may represent the physical object, event, or concept. An attribute is a property of an entity. Relationship denotes the link between the entities. Cardinality represents the relationship between entities through three relationships such as, 1:1 (one to one) 1:N (one to many) M:N (many to many) Entity relationship diagram: The entity-relationship diagram is a graphical demonstration of entity-relationship model. A logical representation of business data for a business area is the entity-relationship model (E-R model). In the business environment, the E-R model is expressed in terms of entities and relationships between the entities.

Question

Develop a simple data model for a student database that includes student contact data, student demographic data, student grades data, and student financial data. Determine the data attributes that should be present in each table, and identify the primary key for each table. Develop a complete ER diagram that shows how these tables are related to on another.

Answer 1

Question

Chapter 5, Problem 1PSE

Program Plan Intro

Data Model:

Data modeling is the process of creating the model for the data entities involved in the business system and their relationship between them.

Entities may represent the physical object, event, or concept.

An attribute is a property of an entity.

Relationship denotes the link between the entities.

Cardinality represents the relationship between entities through three relationships such as,

1:1 (one to one)

1:N (one to many)

M:N (many to many)

Entity relationship diagram:

The entity-relationship diagram is a graphical demonstration of entity-relationship model.

A logical representation of business data for a business area is the entity-relationship model (E-R model).

In the business environment, the E-R model is expressed in terms of entities and relationships between the entities.

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Develop a simple data model for a student database that includes student contact data, student demographic data, student grades data, and student financial data. Determine the data attributes that should be present in each table, and identify the primary key for each table. Develop a complete ER diagram that shows how these tables are related to on another.

Develop a simple data model for a student database that includes student data, student contact data, student demographic data, student grades data, and student financial data. Determine the data attributes that should be present in each table, and identify the primary key for each table. Develop a complete entity relationship diagram that shows how these tables are related to one another.

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