For those who are not aware, there is a newish methodology called DCI (Data, Context, Interactions) which attempts to solve the problems of OOP. DCI was designed and proposed by the same guy that created the MVC concept that has become hugely successful. DCI is an attempt to group methods with their use cases so that interactions used by business logic and algorithms are more predictable.

The key to DCI is a separation of concepts:

• Data: what the system is
• Context: A use case
• Interactions How objects interact within a co…