Adaptation categories

Static Vs Dynamic

The static adaptation can be achieved via logics in the program source code. That’s in the design time where a certain predictions are reflected in program source code and the configuration settings. Dynamic adaptation is the adaptation at runtime. The latter is considered to be more difficult to achieve as it is difficult to predict what are the events are and what the actions on them are. Undoubtedly the latter with a higher research interest.

Manual Vs Automatic

The manual adaptation refers to a sort of adaptation where human intervention is involved. In contrary, the automatic adaptation is where there is no such human involvement. By referring to the existing literature we can see that the more effective adaptation strategies are based on semi-automatic, where at a certain point there is a human involvement but mostly it’s the system itself is adapting to changes. (Especially adaptation of non-functional properties)

Proactive Vs Reactive

The difference here is based on the time of the adaptation occurs with respective to a particular event in the environment. If the adaptation is before the event, then it is proactive adaptation. If the adaptation is after the event then it’s known as reactive adaptation.