Achieving Software Reuse Using the Interface Separation Principle of Object-Oriented Design

摘要

Object-Oriented programming is one of the current paradigms for producing quality software, providing that the object-oriented principles are respected and fulfilled. One principle is the interface separation, which states that clients of any given software must not be forced to depend on interfaces they do not need. If an object-oriented framework complies with this principle, it can be reused and extended without any trouble as we will show in this paper. If code reuse is achieved, we reduce the time of programming a new application, and also reduce the possibility of errors, since we are using already-proven code. When a framework does not comply with this principle because it has the interface dependency problem, its functionality cannot be reused separately, and cannot be extended either without violating other object-oriented principles, like the open / close principle. To solve this problem, in this paper a refactoring method for separating interface based on the interface separation principle is presented.