# Transition period

Term `transition-period`. Old and new schema forms coexist while consumers migrate.

Practitioner: Scott W. Ambler, Pramod J. Sadalage. Read in: *Refactoring Databases*, §3.11 What You Have Learned.

## Skills
- [uncomplect](/skills/uncomplect)

## Sources
- Ambler, Scott W.; Sadalage, Pramod J. *Refactoring Databases: Evolutionary Database Design*. Addison-Wesley, 2006. [Link](https://www.amazon.com/Refactoring-Databases-Evolutionary-paperback-Addison-Wesley/dp/0321774515). ([b14-refactoring-databases](/bibliography#b14-refactoring-databases))