A Design of OO Framework Repository ()

Framework Definition:

• an OO framework is defined as a set of related classes and object interactions that models a common behavior adn functionality in certain domain. it is provided in a form of 'semi-completed' application, and serves as a core component of the target application.
• framework capture the programming expertise necessary to solve problems in particular problem domain.
  it rely on inheritance , dynamic binding, object composition and delegation.
• a framework defines the behavior of a colection of objects , providing an innovative way to reuse both software designs and code.

Framework Layer.

• Common Concept layer(CC):contains the common core concept for the problem domain as a whole.
• Specific Concept layer(SC): consists of  specific classes for each concept.
• Application layer (AP ): provide the software support for the different kinds aplication .
  

Framework Elements:

• Object: which has similar basic attributes, and they are classified into object types
• Object type: a set of related objects.
• Categroy: the role that may play within relationship
• Class: a set of object which have similar attribute and behavior
• Class List: all classes and objects that are used in a framework
• Atrribute: a set of values that are used in objects and relationships.
• Relationship : interaction of the framework elements