Check out this cool infographic from Data Vault Alliance! https://datavaultalliance.com/news/dv/agile-methodology/
The Agile manifesto is comprised of 12 principles, that can be paraphrased as:
1. Put the customer first.
2. Accept that requirements are going to change.
3. Deliver something valuable continuously.
4. Collaborate actively with the business people.
5. Identify motivated people, and trust them.
6. Don’t hide behind email and other tools.
7. The only thing that matters is what works.
8. Keep it real. It’s gotta be sustainable.
9. Good design counts for a lot. Be thoughtful.
10. Keep it simple. What you don’t do can be just as important as what you do.
11. Productive teams don’t need a lot of management overhead.12. Reflect, make adjustments, carry on, ring-and-repeat.