An example can be the spring which keeps a watch working. Such processes will change the values of the attributes of the object. But it will change when the tension stops to exist. A process or even in can be continuously. The weight of an object upon another is a continuous process which can influence another object.
Processes can also send events to other object.
This will be discussed more in details later. The Behavior of an Object Let's start with an object for which some processes are going on. The situation of the real object in the real world changed. This change is reported and inputted in the information system. The information may be not relevant for the information system.