IT SOLUTIONS
Your full service technology partner! 
-Collapse +Expand
KB
   ► KB ► > aggregation Posts  Print This     

aggregation Posts

"aggregation" Knowledge Base Posts

More...
  KB Article    

Mike Prestwood
1. OO/UML: Aggregation versus Composition

Our most popular article in the history of our online community! Explains the "is a", "has a", "uses a", and "looks like" relationships (updated May 2007). "Is a" is inheritance, "looks like" is interfaces, "has a" is aggregation, and "uses a" is composition.

Posted to KB Topic: Object Orientation (OO)
16 years ago, and updated 8 years ago
(11 Comments , last by James.C5 )

Article
Nothing New Since Your Last Visit
115766
Hits

Coding & OO

Mike Prestwood
2. Aggregation

Aggregations indicate a whole-part relationship, and are known as "has-a" or "is part of" relationships. An Aggregation relationship is indicated by a line with a hollow diamond.

Posted to KB Topic: Object Orientation (OO)
10 years ago, and updated 9 years ago

Definition

KB Post
Nothing New Since Your Last Visit
17014
Hits

Coding & OO

Mike Prestwood
3. Inheritance

The concept of a class makes it possible to define subclasses that share some or all of the main class characteristics. This is called inheritance. Inheritance also allows you to reuse code more efficiently. In a class tree, inheritance is used to design classes vertically. (You can use Interfaces to design classes horizontally within a class tree.) With inheritance, you are defining an "is-a" relationship (i.e. a chow is-a dog). Analysts using UML call this generalization where you generalize specific classes into general parent classes.

Posted to KB Topic: Object Orientation (OO)
10 years ago, and updated 9 years ago

Definition

KB Post
Nothing New Since Your Last Visit
16708
Hits

Coding & OO

Mike Prestwood
4. Introduction to the Unified Modeling Language This introduction to the UML covers symbol usage, definitions, and creating diagrams. The UML standardizes what diagrams with what symbols for what situation. The UML is complete with diagrams for analysis, design, and coding. Use use case diagrams to document how users (actors) use a system (a use case). Use class and object diagrams for the design and coding of a system. A class is the prototype for an object. An object has attributes (properties) and the current values of those properties is the current state of the object.
15 years ago, and updated 10 years ago
(2 Comments , last by Ramk.K )

Article
Nothing New Since Your Last Visit
17971
Hits

Analysis & UML

Mike Prestwood
5. Dependency A "uses-a" relationship. For example, when a class uses another class as a member variable or a parameter. A "uses-a" relationship forms a dependency on a class. A Dependency relationship is indicated by a dotted line with an arrow.
10 years ago, and updated 10 years ago

Definition
Nothing New Since Your Last Visit
9941
Hits

Analysis & UML
More...

"aggregation" Message Board Posts


Thread 1 of 1

Mike Prestwood
Prestwood Staff Note - 3/30/2010
{Too Long!}
Posted to MB Topic: Chit Chat « Staff Board
11 years ago
3 replies. Last post:

mprestwood
Sounds great. After your finals, let's do that.
11 years ago
Nothing New Since Your Last Visit
28
Hits


Icon Legend:
Since your last logged visit:
- New to you or updated since your last visit (sign in now to activate).
- NOT new to you since your last visit (sign in now to activate).
-
   Contact Us!
 
Have a question? Need our services? Contact us now.
--Mike Prestwood

Call: 916-726-5675

email: info@prestwood.com


Go ahead!   Use Us! Call: 916-726-5675 


©1995-2018 Prestwood IT Solutions.   [Security & Privacy]