Skip to main content

Try to implement the school structure in the object oriented database model with some simple object and class such as Principal, Manage staff and Student.

How to implement the school structure in the object oriented database model?

The Principal object and their class

try to implementation of the school structure in object database

  • The Principal is the object but the name ‘Principal’ is a class.
  • It is real world object.
  • It inherits the class of student.
  • The property of the Principal is to gives the student admission permission.
  • The authority of the principal is check performance of teachers where the teachers how to teach the student.
  • The principal suggest the meeting for their school management to work in a proper way and gives the best performance in results in every year.
  • The connected smooth line to class of the manage staff shows the sub class link of the principal class.

Manage staff class

  • In this class there are three objects as Vice principal, Account section and Teachers.
  • These three objects are controlled by the Principal class.
  • If the Principal is absent in a day then manage staff can handle the school management.

Student class and their objects

  • The class of the student is ‘student’.
  • The object of the student is name of the student which is present in the real world.
  • The unique property of the student is admission number in the school.
  • The temporary attribute of the student is roll number in the school because it can be change in the future of the student roll number after the next class.
  • The subjects of the student are the other property in the class of the student.
  • The take admission permission of the student is strong attribute domain link which is connected to the principal class property of admission permission.
  • The connected line of the student and principal class is dotted which shows the attribute domain link according to the object oriented database management model language.

Labels:

Comments

Post a Comment

Popular posts from this blog

Discuss the role played by the various components of the CPU

Q Discuss the roles played by the various components of CPU? The CPU is the brain of the computer system. All major calculations, manipulations and comparisons are made by the CPU. The CPU is also responsible for activating and controlling the operations performed by all other units of the computer system. The major components of the CPU are: a) Arithmetic Logic Unit (A.L.U.) b) Control Unit (CU) c) Primary Memory Arithmetic Logic Unit (A.L.U.): What is ALU Arithmetic logic Unit? ALU is a part of the CPU. It is a part to calculate the logical term in the CPU where the term refers to an operation of logical type. It also calculates the arithmetic terms in the CPU where the term refers to an operation of arithmetic type. It is used to direct access through the processor controller. The ALU connected to the input and output peripheral system through the bus with the different types of bus. Such as control bus, data bus etc. ALU is a part of the CPU that can calculate the input...
Post a Comment
Read more

About the memory and its Classification of the computer Memory

What are the memories in the reference of computer system? What is Computer Memory?:- The memory is the essential for the computer to store the data, instruction and information. Without memory, computers are not be able to store data, instruction etc. The memory is an essential part of a computer system. It is require by the computer system to store information. Memory can be divided into the following two categories types: i) Primary or Main memory ii) Secondary Memory or Permanent memory In this figure I'll show the classification of the memory of computer system peripheral and architecture of organisations Primary Memory or Main memory:- i) Primary memory is the memory which is fastest memory of the computer. ii) It is a small but relatively fast storage unit that stores data and instruction which are used by the CPU (central processing unit). iii) This type or category of a memory is the main memory of the computer.It is a temporary memory and also we ...
Post a Comment
Read more

What are the three main purpose of an operating system?

What are the three main purpose of an operating system? There are three main purpose of an operating system. 1. The first main purpose is User interface between hardware and users. 2. The second main purpose is to operate the internal parts of the computer properly and systematically using binary code system in the form of 0 and 1. 3. The third main purpose is to provide an environment for development of an application software and program to uses the hardware resources of the computer and connected to the computer parts which provides output to the user, the output from application software is very useful for users. Interface between user and hardware device  The operating system uses all types of interface such as command line interface, batch command interface and Graphical User Interface to interact with users to hardware peripheral devices through the monitor screen. Monitor has a big role making interface between hardware and users. Monitor visualization of all types ...
Post a Comment
Read more