Playing with DCI in Ruby
Switch branches/tags
Nothing to show
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Failed to load latest commit information.

DCI in Ruby

DCI, which stands for "data, context and interaction", is a software design model. This model consists of three types of objects:

  • Data - describes what the system is. Usually a relatively static data model with relations. They do not contain any application logic, they are only data.
  • Context - describes a use case for a system. Determines the objects that need to be involved in a use case and ties them to one or more Roles.
  • Interaction - describes what the system does. Implemented as Roles which are played by objects at run time.

In DCI, an actor in a Context is injected with only enough application logic to get the job done. Thus, DCI cleanly separates what the application is (Data) from what it does (Interactions); this is in contrast to, say, a typical Rails application with a skinny-controller-fat-model paradigm.

For more reading, check out (among many others):