Agile Scaling Model | Glossary

Definition:

The Agile Scaling Model (ASM) is a contextual framework for effective adoption and tailoring of agile practices to meet the unique challenges faced by a system delivery team of any size. The ASM distinguishes between three scaling categories Core agile development, Disciplined agile delivery and Agility at Scale.

Further Reading: Disciplined Agile Delivery by  Scott W. Ambler and Mark Lines.