Parameter-from-action connections use the result of an action as a parameter to a connection. This connection type can be used in very powerful ways. To illustrate the use of this connection, we'll introduce a new part called the Object Factory. As the name implies, the Object Factory part creates new objects from an existing model called a Class. In this case, the mold we will use is the already familiar Ordered Collection. If you remember, you used the Ordered Collection part to build the To-do List sample. Refer to Working with nonvisual parts for the details related to the use of the Ordered Collection part in the To-do List sample. An example of how to use a parameter-from-action connection follows: