This document presents design principles for software as a service (SaaS) created by the UX team at JDA Labs. It identifies seven principles: make it clear, keep it smart, bring trust, tell a story, pioneer design ideas, stay current and stay elegant. Each principle is explained with examples of its importance and how it can guide decisions when building SaaS applications. The principles are intended to serve as building blocks for developing intuitive, helpful and trustworthy SaaS products.