Archive for March 2009

The Difference Between Encapsulation and Abstraction

The difference between encapsulation and abstraction seems to trouble some people, which is something I find rather odd. While both are concepts important to object oriented design, and while both are complementary to one another, they are two different concepts. In this article I will explain briefly what encapsulation and abstraction are, and how they [...]

Technical Debt

In this article I want to talk about a term that I think is just brilliant: technical debt! The term technical debt makes an analogy: it considers the use of quick, but poor, technical solutions to store up a form of debt. As with more conventional forms of debt, the immediate problem is solved, but [...]

Object Characteristics

In this article I want to look at the essential characteristics that objects have, namely those of state, behaviour and identity. This article follows on from my my What is an Object? article of a while ago, when I offered the following definition of what an object is:
An object is a physical manifestation of a [...]

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