College Management System ER Diagram | Entity Relationship Diagrams

College Management System ER Diagram

The college management system ER diagram shows the relationships of the system’s entities that build its database design. This describes the logical structure of the system’s database or data storage. It is done by identifying the college management process entities, their properties, and the interactions between them.

The college management system database design is sketched out using ER (entity-relationship) diagram. This sketch becomes the actual basis of the system’s data storage that will serve as data destination and source.

ER Diagram for College Management System: Details

The table shows the overall description of the ER Diagram for College Management System. It has a complete overview of the project’s information.

Name:College Management System ER Diagram
Abstract:The college management system ER diagram depicts the relationship between various entities. It can be thought of as a blueprint for your system (project) structure. 
Diagram:ER Diagram is also known as Entity Relationship Diagram
Tools Used:Diagraming tools that provide ER diagram symbols.
Users:College Admin and Staff and the students.
Designer:ITSourceCode.com
College Management SystemER Diagram: Details

What is College Management System?

college management system is a piece of educational software that aids higher education institutions and colleges in managing student entrance and enrollment, attendance, fees, grades, assignments, library books, and other aspects of student life.

It allows schools and universities to keep track of and secure the information that moves within their walls. For data-driven and decision-making purposes, this system generates automated reports on all areas.

The college management system can store data, maintain student profiles, analyze administrative and academic data, improve communication, and engage students, among other things.

College Management System Features

Bank Management System ER Diagram |...
Bank Management System ER Diagram | Free Entity Relationship Diagrams
  • College Management – College Management is the main feature of this system wherein ER diagram contains the basic details of the college. This basic information was composed of the courses and programs offered.
  • Student Management – This feature plays a big role in the system because this gathers important information about the students. This information was used to track their transactions and other important matters regarding the system.
  • Manage Courses and Subjects – The college admin will have to set the selected courses for every student, then assign appropriate instructors to the subjects covered by each course.
  • Manage Instructors – This system handles the instructors’ information as well as their complete schedule of classes and all that were needed to be done in managing instructors.
  • Transaction and Scheduling Management – Its feature will store the transactions made by the students and instructors including their information and their schedules for every subject and timetables.

What is an ER Diagram?

In DBMS, the ER Diagram of college management system is also known as the system’s database design. It is the graphical depiction of relationships between all the entities involved in the system. Its major components are Entities, Attributes, and Relationships.

To build and troubleshoot relational databases, the college management system ER Diagram is used. It works best with DFD (Data Flow Diagram), which is responsible for data movement. Developing the database design for college management system would be much easier with the help of ER diagram.

Importance of ER Diagram

The importance of ER diagram for college management system is to help in modeling its data storage or database. It is the basis of the project’s database foundation for construction. The college management system entity-relationship diagram (ERD) also aids in defining the data types to be stored such as their attributes and characteristics.

All other real-world projects are presented with ER Diagrams (database designs). To display the details and attributes of a data store, the er diagram for college management system is used in conjunction with its data flow diagram. It visualizes how data is connected generically.

ERD (Entity-relationship diagram) is utilized in software engineering during the planning phase of software development. It aids in the identification of various system constituents and their interrelationships. College Management System ERD is also used as the foundation of the college management DFD (Dataflow Diagram).

Entity Relationship Diagram for College Management System

ER Diagram of College Management System shows the system entity relationships in each entity and their supposed functions in each relationship.

College Management System ER Diagram
College Management System ER Diagram

Based on the image above, the Entity-Relationship diagram college management system tables are composed of students, instructors, transactions, courses, subjects, and schedules. The tables are made to meet the required specification of the system and provide much more specific details of each entity within the system.

College Management System Database Design

This college management system database design was made based on managing college requirements. The system can encode students’ information. College admin can have access to the students’ status and information for the important transactions. They can handle the data needed in managing student and instructors/teachers’ files as well as the transactions made by their students.

The features included in the system ER diagram were the security and monitoring of the student’s records, transactions, and status. These features were also listed and recorded in reports that served as the history of transactions done in the system.

College Management System ER Diagram Tables

These tables below provide the complete database table details such as Field NameDescriptionsdata types, and character lengths. Each of these tables represents the characteristics and the attributes of data storage.

The field column presents the names of each database’s attributes, the description column gives the complete thought of each attribute, the type column is their data type and the length is for their character lengths.

Table Name: Student

FieldDescriptionTypeLength
stud_ID (PK)Student IDInt11
fnameStudent First NameVarchar255
lnameStudent Last NameVarchar255
genderStudent GenderInt11
ageStudent AgeInt11
contact_addContact AddressInt11
stud_emailStudent EmailVarchar255
stud_passStudent PasswordVarchar255
Table Name: Student

Table Name: Instructor

FieldDescriptionTypeLength
ins_ID (PK)Instructor IDInt11
fnameInstructor First NameVarchar255
lnameInstructor Last NameVarchar255
genderInstructor GenderInt11
ageInstructor AgeInt11
contact_addContact AddressInt11
ins_emailInstructor EmailVarchar255
ins_passInstructor PasswordVarchar255
Table Name: Instructor

Table Name: Course

FieldDescriptionTypeLength
course_ID (PK)Course IDInt11
course_nameCourse NameVarchar30
course_descCourse DescriptionVarchar30
school_yrSchool YearInt11
Table Name: Course

Table Name: Subjects

FieldDescriptionTypeLength
sub_ID (PK)Subject IDInt11
nameSubject NameVarchar255
course_ID (FK)Course IDInt11
Table Name: Subjects

Table Name: Schedules

FieldDescriptionTypeLength
sched_ID (PK)Schedule IDInt11
course_ID (FK)Course IDInt11
sub_ID (FK)Subject IDInt11
ins_ID (FK)Instructor IDInt11
stud_ID (FK)Student IDInt11
dayDay of scheduleDate
time_startStarting TimeTime
time_endTime EndedTime
Table Name: Schedules

Table Name: Transactions

FieldDescriptionTypeLength
trans_ID (PK)Transaction IDInt11
trans_nameTransaction NameInt11
stud_ID (FK)Student IDInt11
trans_date Transaction DateDate
Table Name: Transactions

The tables given will be the basis for developers on how would they do the college management system database design. It has the complete description of the database and they will put this into the program or data storage the same as the names given to each of the tables. They will create a database with the attributes given as well as the value of each attribute.

College Management System ER Diagram [PDF]

The ER Diagram for College Management System in DBMS PDF provides the information explaining the concepts of the project database. You may apply this information to your capstone project. You can also use it directly or modify its content depending on your project’s requirements.

How to create an Entity-Relationship (ER) Diagram

Time needed: 5 minutes.

Steps in building the ER Diagram for College Management System with Cardinality Ratio.

  • Step 1: Familiarize the ER Diagram (Entity Relationship Diagram) Symbols and Cardinality

    Entity Relationship Diagram – shows the structure of data types in a project. It uses symbols to clarify its parts and relationships. Their symbols and applications must be familiarized before you build the ER Diagram.

    ER Diagram Symbols:
    Field – are the parts of a table that define the entity’s characteristics. In the database that the ERD models, attributes are commonly thought of as rows.
    Keys – is a technique to categorize data qualities. It is used to organize ER diagrams and assist users in modeling their databases to ensure that they are efficient. This is also used to connect different tables in a database.
    – Primary Key: identifies a single entity instance which means a unique attribute or set of attributes.
    – Foreign Key: is produced when data attributes have one too many relationships with other entities.

    ER Diagram Cardinalities:
    The styling of a line and its termination demonstrates cardinality and ordinality.
    The greatest number of times an instance of one thing can be related to instances of another entity is referred to as cardinality.
    While Ordinality refers to the fewest number of times a single entity instance can be linked to another.

  • Step 2: Finalize the entities included

    Start designing your ER Diagram by finalizing the entities that must be included in your college management system. This entity is represented by a rectangle, and you’ll want to leave plenty of room for them in future phases so you may add them to your design.

    An entity set is a group of similar entities with shared properties. A table or a table’s attribute is an entity in a database management system. As a result, by depicting relationships between tables and their characteristics, an ER diagram displays the whole logical structure of a database.

  • Step 3: Add the attributes of each entity

    After finalizing the entities, think about the qualities you’ll need to characterize each entity. The details of the various entities outlined in a conceptual ER diagram are supplied as attributes. Characteristics of an entity, a many-to-many relationship, or a one-to-one relationship are all examples of attributes. Multivalued attributes can be assigned to several values.

    The entity’s attributes were represented by ovals and can be seen in the tables of the college management system er diagram. These attributes can be a primary key or a foreign key in the database design of the project. Yoy ER diagram design could also be converted to the database of the system by declaring your right entities and their attributes.

  • Step 4: Describe the relationships (cardinality) between entities and attributes

    To plot relationships between the ERD you will need the entities, their attributes, and relationships. You will base the data structure from the evaluated information to have the exact Entity Relationship Diagram.

    A relationship is an association that describes how two entities interact. At the connector’s endpoints, the cardinality is indicated by a crow’s foot. One-to-one, one-to-many, and many-to-many are the three most common cardinal relationships. It’s the maximum number of times an instance of one entity can be linked to instances of another entity.

Conclusion:

ER (entity-relationship) diagram is only one of the diagrams used to design and develop the College Management System. Each of the diagrams you design and create will help you in presenting your ideas and impart your abilities.

Creating the ER diagram will help you perceive the back end of the software which will hold all the data that’ll enter and exit the system. To learn more about the ER Diagrams and more, check out the related and recommended articles below.

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