Blog categorized as Object-orientation

Inleiding

Een veelgehoord misverstand over object-oriëntatie (OO) is dat het een methode voor systeemontwikkeling van computersystemen is. Ik merk dat het steeds weer nodig is dat idee omver te halen.

OO is niet een methode voor systeemontwikkeling. Het is een taal om complexiteit hanteerbaar te maken...

This question was asked on Stackoverflow and ModelingLanguages and prompted me to attempt to make some persistent preconceptions about UML clearer. First of all: UML is not about modelling object-oriented software.

Origin of object-orientation

But maybe we should go back to what object-orientation is....

A recurring discussion is about the intuitiveness of object-orientation and its perceived complexity. Articles in authoritative magazines like the ACM Communications are also wrestling with this "intuitiveness".

This article struck me as especially interesting ...

The essence of OO can be summarised in two statements:

1. Active/passive rule
2. Demand-chain cooperation

This article introduces these two important and undervalued patterns.

The Active/Passive rule

This rule can be summarised as follows:

We find it so hard to cope with complexity in IT, that every time an evolving standard, like UML, is becoming too complex, we tend to drop it in favour of something new. The new being, because it is new, simple and understandable. While it lasts …

We see this with the rising popularity of Ruby. Deve...