|
|
| (35 intermediate revisions by the same user not shown) |
| Line 1: |
Line 1: |
| == '''CRC CARDS''' ==
| | please review our new wiki page |
| ==1. '''Introduction'''==
| |
|
| |
|
| | | http://pg-server.csc.ncsu.edu/mediawiki/index.php/CSC/ECE_517_Fall_2010/ch3_3j_cj |
| Class-Responsibility-Collaborator is a simple Object oriented Analysis technique. They are also used as a successful modeling and collaborating design of a system. It basically an index card used to represent a class of objects, their behavior and their interactions. The cards are created through scenarios, based on the system requirements that model the behavior of the system
| |
| | |
| CRC cards where introduced by Kent Beck and Ward Cunningham in there paper "A Laboratory for Teaching Object-Oriented Thinking" released in OOPLSA '89. There original purpose was to teach programmers the object-oriented paradigm.
| |
| | |
| It consists of
| |
| | |
| 1. Class
| |
| 2. Responsibility
| |
| 3. Collaborator
| |
| | |
| | |
| | |
| '''Class:''' A class represents an abstract characteristics of things (or Objects) and its characteristics ( or attributes). It is a user defined data type which contains all the variables, properties and methods in it. A class name is present on the top of the CRC card. Example here
| |
| '''Responsibility:''' Responsibility indicates what a class knows or does. It is basically all the variables and methods a class has. A class can change the values of what it knows but not what other classes know. The responsibilities of a class are present on the left of the CRC card. Example here
| |
| '''Collaborator:''' With each responsibility you indicate which other classes you need to work with to fulfill it. This gives you some idea of the links between classes. The collaborators of a class are present on the right side of the CRC card. Example Here
| |
Latest revision as of 01:13, 11 October 2010