What is Object Decomposition?

I was trying to understand what object decomposition means and read a lot of stuff on internet but every resource talks in terms of lots of keywords that i couldn't understand. So these resources expect you to know a few terms. I need something that lists the basics of decomposition from scr开发者_如何学JAVAatch.

Is it anything more than breaking the design into objects? If no, any description will be appreciated.

Thanks in advance

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Imagine, you have Car object. It is very large object, hard to support. You break this objects into smaller responsible for some part of the problem domain:

• Engine
• Сabin
• Boot
• ...

That's the decomposition, each of that objects can be broken again, like Cabin consist of Board, Sits, Wheel... Or probably Board consist of Wheel and other parts. Etc.

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I think you've basically got it correct -- mapping the "real world" things you'll be working with to representations as objects in your code.

Sometimes people call this modeling, because they are creating a "model," in code, for things and concepts in the real world, like employees, accounts, birthdays, cameras, etc. -- some physical, others ephemeral, but all needing to be represented as objects in code.

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By saying composition, in C++, it means you set a object from a class that I named it A (maybe containing three data members, for example three built in type as integers to not make things too complicated) into another class that I named B (and possibly together to others data members belonging to class B).

In turn, muy actual puzzle is to figure out how to decompose this object from class A that was included in class B. As almost 50% of the time,(not refering& to this site because this is my first active participation) let me go because I khnow I won´t have a concrete help...so let me go to dig down into my collection two feet height C++ books and study