Object Oriented Design

Object  Oriented  Design,  

• Object-oriented design is the process of planning a system of interacting objects for the purpose of solving a software problem. It is one approach to software design.
• In the object-oriented design method, the system is viewed as a collection of objects (i.e., entities). 

• The state is distributed among the objects, and each object handles its state data. For example, in a Library Automation Software, each library representative may be a separate object with its data and functions to operate on these data. 
• The tasks defined for one purpose cannot refer or change data of other objects. Objects have their internal data which represent their state. Similar objects create a class.
• In the object-oriented approach, the focus is on capturing the structure and behavior of information systems into small modules that combine both data and process. The main aim of Object Oriented Design (OOD) is to improve the quality and productivity of system analysis and design by making it more usable.