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

Define the difference between union and structure, Define the difference be...

Define the difference between union and structure The main difference between union and structure is the storage allocation. In Union , for each variable the compiler allocates

Optical storage - computer architecture, Optical storage - computer archite...

Optical storage - computer architecture: Optical storage, the distinctive Optical disc, stores information in deformities on the surface of a circular disc and reads this info

Non-uniform memory access model (numa), Non-Uniform Memory Access Model (NU...

Non-Uniform Memory Access Model (NUMA) In shared memory multiprocessor systems, local memories can be joined with every processor. The group of every local memories form the gl

An example of the subscriber traffic in erlangs, A subscriber makes three p...

A subscriber makes three phone calls of 3 minutes, 4 minutes and 2 minutes duration in a one hour period. Calculate the subscriber traffic in erlangs, CCS and CM. Subscriber tr

Alignment with your indents, Use Microsoft SQLServer to make the following ...

Use Microsoft SQLServer to make the following queries.  You should also download the Pirate Sports DM-DD that gives the fields for every table.  Be sure to use proper alignment wit

Dbms, What are the disadvantages of file processing system?

What are the disadvantages of file processing system?

Graph has a minimum spanning tree already computed, Assume that a graph has...

Assume that a graph has a minimum spanning tree already computed.  How fastly can the minimum spanning tree be updated if a new vertex and incident edges are added to G? If the

Define busy waiting and spinlock, Define busy waiting and spinlock.  Wh...

Define busy waiting and spinlock.  When a process is in its critical section, any other process that tries to enter its critical section must loop continuously in the entry cod

Serialized when you perform serialization, What exactly is being serialized...

What exactly is being serialized when you perform serialization? Serialization is the process of changing an object into stream of bytes. We perform it at the time of transpor

Validate the xml document , As an XML expert you are needed to model a syst...

As an XML expert you are needed to model a system for an online furniture shop. After an interview with the shop manager you have the certain information: The detail of th

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