CRC cards, standing for Class, Responsibilities, and Collaborators, are a valuable tool in object-oriented design. They help teams define what a class should know, what it should do, and how it interacts with other classes.
Structure of CRC Cards
Each CRC card is divided into three sections:
Class Name
The entity or concept being modeled.
Responsibilities
The duties or knowledge the class holds.
Collaborators
Other classes that assist in fulfilling the responsibilities.
Creating CRC Cards
Identify Classes
Determine the main entities in your system.
Assign Responsibilities
Define what each class knows and does.
Determine Collaborators
Identify which classes work together.
Benefits of Using CRC Cards
Enhanced Collaboration
Facilitate team discussions and shared understanding.
Simplified Design
Break down complex systems into manageable parts.
Flexibility
Easily adjust designs during development.
Conclusion
For Agile and Scrum learners, CRC cards offer a hands-on approach to grasp object-oriented concepts and improve team communication. They serve as a bridge between theoretical knowledge and practical application, making them a valuable addition to your Agile toolkit.