Uday Gajendar has written about the different kinds of Design Principles.
Design principles are valuable in ascertaining & defining the core qualities of a product/service offering, providing a guide for critical decisions (and conflicts)… Principles serve as the lighthouse and bedrock, guiding the team’s efforts toward an aspirational goal, while grounding everyone when conflicts and arguments flare up.Uday Gajendar
http://www.ghostinthepixel.com/?p=901
He mentions at least 4 kinds of principles:
- Cultural
- Systemic
- Tactical
- Legendary