State the concept of hierarchy in object oriented, Computer Engineering

Assignment Help:

Hierarchy

Hierarchy is a process of ranking or ordering of abstraction.

Hierarchy is decided by the help of 'divide and conquer' principle. Complex objects can be described in terms of simpler objects. This is the characteristic of object oriented analysis (OOA) which enables you to reuse the code.

You can place an existing class directly into a new class. The new class can be made up of any type and number of other objects and in any combination to achieve the desired functionality. This concept is known as composition (or more generally, aggregation). Composition is often indicated as a "part-of" relationship or "has-a" relationship, for example, in "automobile has an engine" or "engine is part of the automobile."

 


Related Discussions:- State the concept of hierarchy in object oriented

What are the advantages and disadvantages of a smart card, What are the adv...

What are the advantages and disadvantages of a Smart Card?    Advantages of Smart Card: 1. It gives convenience & support for multiple currencies over borders. 2. Used

What are the techniques of data collection, What are the techniques of Data...

What are the techniques of Data Collection It can be either automatic or manual. Manual techniques can include: -  Keypads/Keyboards to type in data -  touch screens to s

Calculate register transfer time, Q. Calculate Register Transfer Time? ...

Q. Calculate Register Transfer Time? A clock isn't included explicitly in any statements discussed above. But it is presumed that all transfers take place during clock edge tra

Examples of input, (i)  Input a single ASCII character into BL register wit...

(i)  Input a single ASCII character into BL register without echo on screen  CODE SEGMENT  MOV AH, 08H;         Function 08H  INT 21H          ;         the character inpu

What is orbix?, Orbix is a CORBA ORB (Object Resource Broker) - a commercia...

Orbix is a CORBA ORB (Object Resource Broker) - a commercial software product which helps programmers builds distributed applications. Orbix is an execution of the OMG's (Object Ma

Push and pop, i want flowchart for push, pop in stack element and display s...

i want flowchart for push, pop in stack element and display stack and exit

Give an example, Write the HTML code for the following table: ...

Write the HTML code for the following table: T E M P E R A T U R E C I T I E S

What do you mean by decoders, Q. What do you mean by Decoders? Decoder ...

Q. What do you mean by Decoders? Decoder transforms one kind of coded information to other form. A decoder has n inputs and one enable line (sort of selection line) and 2 n ou

Types of security features employed in client server network, What are the ...

What are the types of security features employed in client server kinds of network? Security features employed in Client-Server types of network are as illustrated below: a)

The concept of thread-parallel computing, The Concept of Thread Thread ...

The Concept of Thread Thread is a chronological flow of control within a process. A process can include one or more threads. Threads have their own register values and program

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd