YAGNI: You aren't going to need it.\ http://c2.com/xp/YouArentGonnaNeedIt.html http://c2.com/xp/YouArentGonnaNeedIt.html SOLID: A long list of architectural pri

YAGNI: You aren't going to need it.\ http://c2.com/xp/YouArentGonnaNeedIt.html http://c2.com/xp/YouArentGonnaNeedIt.html SOLID: A long list of architectural principles https://en.wikipedia.org/wiki/SOLID https://en.wikipedia.org/wiki/SOLID DRY: Don't repeat yourself A set of useful principles in software architecture. I mostly agree with his order too.