Skip to main content

From Layers to Microunits

The evolution of “Code Cohesion” and “Separation of Concerns”

The software industry has recognized the values of “Separation of Concerns” and “Code Cohesion” for more than two decades. Many articles, books and software-thinkers have contributed methodologies to implement these important values.

In this short article I’d like to compare the conservative “Layers” solution with a new approach, which I call “Microunits”, that can open new ways of solving software design challenges.

Read more...

Comments

Post a Comment

The Best

Rendering Dynamically JavaScript Files from Server Side Code

Today's RIA applications require us to build robots apps with minimal post-backs cycles, this requirement forces us to make an extensive use of JavaScript and technologies as AJAX. Today I want to blog about "Rendering Dynamically JavaScript Files from Server Side Code", this is a very useful and elegant (and strangely not discussed enough) technique that can improve our RIA application architecture. Good But Not Perfect So let's try to describe a small task and it's solution to make a good picture about this strong technique. You work on a "Rental Car" application that is in charge of keeping track of all rented cars and sends an email notification to the "Rental Car" company manager about cars that their rental period already exceeded. As mentioned before, your app makes an extensive use of JavaScript and AJAX in order to improve users experience. Now, let's also say that you need to read the SMTP configuration parameters, such ...
Post a Comment
Read more

The GoF Hot Spots - Bridge vs Strategy

As part of my "GoF Design Patterns - The Hot Spots" posts series, this post is focused on two Design Patterns: Bridge and Strategy . Although these two DPs are completely different, when googling them we encounter several common misconceptions that may make us think that Bridge and Strategy are similar or even same patterns. I am not sure why but one of the popular misconceptions is that these two DPs shares the same UML diagram. We will dig into the original GoF Design Patterns (aka: DP) description trying to figure out the real Hot Spots (aka: specific particular parts that differentiating them from each other) of these two DPs and the relationship between them. In order to maximize the clarity of this article, I used two conventions: Phrases inside [square brackets] are meant to help understanding GoF definitions Italic sentences are GoF's book citations Strategy GoF Definition "Define a family of algorithms [Classes that inherits from the ...
Post a Comment
Read more