Some interesting concepts for Software Architect and Designer

1. Convention over Configuration (aka Coding by convention)
2. Don't Repeat Yourself (DRY, aka Single Point of Truth)
3. Code Reuse
4. The KISS principle (Keep it Simple, Stupid, aka Keep it Short and Simple)
5. 'You Aren't Gonna Need It' (YAGNI)
6. Reinventing the wheel (aka Not built here or Not Invented Here)
7. Worse is better (aka New Jersey style)
8. Occam's razor or Ockham's razor
9. Make everything as simple as possible, but not simpler.
10. MoSCoW Method (M - MUST have this, S - SHOULD have this if at all possible, C - COULD have this if it does not affect anything else, W - WON'T have this time but WOULD like in the future.
11. No Silver Bullet
12. The principle of good enough (POGE)
13. The Pareto principle (aka 80-20 rule, or the law of the vital few or the principle of factor scarcity)
14. Satisficing (a portmanteau of "satisfy" and "suffice")
15. Rule of three
16. The single choice principle
17. Greedy reductionism
18. The principle of least astonishment (or surprise)
19. N - version programming (NVP)( aka multiversion programming)
20. Separation of concern