 Class-responsibility-collaboration card

Class-Responsibility-Collaboration (CRC) cards are a technique used in object-oriented design to help define and communicate the structure of a system by identifying the classes involved, their responsibilities, and how they collaborate with one another. The technique was introduced by Ward Cunningham and is used primarily during the early design phase of software development. ### Components of CRC Cards: 1. **Class Name**: The name of the class is typically written at the top of the card.