What are CRC cards?

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.