Define the Emphasis on Object Structure
Emphasis on Object Structure, not on Operation Implementation
In object orientation the importance is on specifying the qualities of the objects in a system, rather than implementing these qualities. Object use depends highly on the facts of the application and regular modification while development. As requirements increases, aspects provided by an object are much more constant than ways in which they are used; therefore software systems built on object structure are more protected. During developing a system using the object oriented method, main stress is on the essential characteristics of the objects involved in the system than on the method structure to be used for execution. During this process what an object is, and its role in system is deeply of concern.