The target in a direct manipulation operation is responsible for determining whether a particular set of objects can be dropped on it, and for providing the user with visible cues regarding the operation. A target is informed of the operation through messages sent to it as the pointer, provided by the source, is dragged across the screen.

When a set of objects is dropped on the target, the target is responsible for establishing the appropriate conversations with the source to accomplish the data transfer. The type of conversation for each object is based on the rendering mechanism and format of the object being dropped.

The target application is responsible for:

• Determining if data can be exchanged between source and target by verifying that both applications share knowledge of at least one rendering mechanism and format

• Providing visible feedback, or target emphasis, on whether a drop is allowed

• Defining the default state of a direct manipulation operation

• Initiating conversations with the source for data transfer