35
votes
11answers
4k views

Ensure that each class has only one responsibility, why?

According to Microsoft documentation, the Wikipedia SOLID principe article, or most IT architects we must ensure that each class has only one responsibility. I would like to know why, because if ...
1
vote
1answer
104 views

Discovering functionality from parallel class hierarchy

I have an abstract syntax tree which I want to compile down to different representations. I am now struggling to arrange the classes in a way that new representations can be added easily. The easiest ...
3
votes
2answers
345 views

Questions about identifying the components in MVC

I'm currently developing an client-server application in node.js, Express, mustache and MySQL. However, I believe this question should be mostly language and framework agnostic. This is the first ...
7
votes
3answers
1k views

IValidatableObject vs Single Responsibility

I like the extnesibility point of MVC, allowing view models to implement IValidatableObject, and add custom validation. I try to keep my Controllers lean, having this code be the only validation ...
4
votes
3answers
510 views

Single Responsibility Principle Implementation

In my spare time, I've been designing a CMS in order to learn more about actual software design and architecture, etc. Going through the SOLID principles, I already notice that ideas like "MVC", ...