Encapsulate a request as an object facilitating the parameterization of clients with different requests, queuing requests and the potential support undoable operations.

Pacemaker reimplemented to incorporate the command pattern. This version is more sophisticated than the previous version - we model it here to get a general understanding of its structure.

Pacemaker Cliche

Pacemaker Command

Pacemaker Undo

Undo / Redo Challenges

Prototype

Pacemaker Prototype

Rework the cliche library, using Strategy to delegate command processing. Implement the Command pattern into a simplified version of Pacemaker. Extend the implementation to include undo/redo capability