However, IC Cards is not completely same as CRC Cards.
The biggest difference is that they are the techniques that is actually applied in different phase of the traditional water-fall mode.
IC Cards is applied to describe the requirement of a project. On the other hand, CRC Cards is used to describe objects from class view of point, which is belonged into the design phase.
IC Cards include more information than CRC Cards.
Although CRC Cards record the collaborator with other objects, it doesn't provide more information about the collaboration. On the other hand, IC Card not only provides the name of the other IC Cards that related it, but also shows the specific relation by means of the message.
IC cards provide six colors to express the different type of relation between objects. This kind of specific information is not appeared in CRC Cards.