Class Relationships – When Has-A Shows a Relation
Our language can blur the distinctions of class relationships in designing our solution. The “has-a” determination is often confused by how the English language can... Read more
Category: Podcast
Is A and Has A Concepts in Object-Oriented Design
The ideas of “is a” and “has a” are often discussed as part of object-oriented design. These concepts may seem simple and obvious. However, they... Read more
Granular Interfaces – How Much OO Is Practical?
The ideas of cohesion and coupling point us to paths that either place functionality in smaller or larger classes. We discuss granular interfaces in this... Read more
Inheritance – Polymorphism In A Hierarchical Manner
We switch gears in this episode and start to look at inheritance. This is a core feature of object-oriented design and the most recognizable attribute. ... Read more
Interfaces – An Object-Oriented Contract For Usage
This episode, we look at interfaces. These are not supported by all languages. However, when they are supported, they are very useful. The interface specification... Read more
Flexibility in OOP – Build in hooks for change
One of the essential concepts to understand is flexibility in OOP. A good design requires the ability to extend it. There are ways to do... Read more