Phenomena and Concepts

Introduction to Object-oriented Programming - slide 14 : 22

A phenomenon is a thing that has definite, individual existence in reality or in the mind. Anything real in itself.

A concept is a generalized idea of a collection of phenomena, based on knowledge of common properties of instances in the collection

A Conceptual Framework for Programming Languages: Jørgen Lindskov Knudsen and Kristine Stougaard Thomsen, Department of Computer Science, Aarhus Universitet, PB-192, April 1985.

Characteristic aspects of concepts
- The concept name
- The intension: The collection of properties that characterize the phenomena in the extension of the concept
- The extension: The collection of phenomena that is covered by the concept