The Data, Context, and Interaction (DCI) architecture paradigm introduces the idea of thinking in terms of roles and contexts. See some of my white papers for a more detailed introduction into DCI, but for this blog article, consider the following example: a human could be modelled in object oriented programming by creating a super huge massive class which encapsulates all a humans attributes, their behaviours, etc. You would probably end up with something much too complex to be really maintainable. Think about when a human becomes a clown for a kids party; most of that behaviour has little to do with being a programmer, which is a different role which the human could play. So, DCI looks at the problem differently than OOP and solves it by letting the data class be good at being a data class, and putting the behaviours specific to certain roles into "roles", which in my DCI Tools for Java library are classes. Certain roles interact with each other within a given context, such as a clown entertaining kids at a birthday party. The roles which belong to an interaction are part of the context, and in DCI the context is a class which puts data objects into specific roles, and makes them interact. The context and its roles form the encapsulation of the behaviour. I have updated my library, so that there are two new Annotations, namely the @Context and @Role annotations. The @Context annotation is simply a marker to show that a class…