An abstract class is a template definition of methods and variables in a specific class, or category of objects. In programming, objects are units of code, and each object is made into a generic class ...

Design patterns have evolved to solve problems often encountered in software applications. The factory method design pattern and the abstract factory design pattern are both creational patterns.

Two relatively independent areas of visual cognition research examine important aspects of visual object understanding: Object Recognition and Perceptual Categorization. These areas have focused on ...