This slide deck embedded below contains a brief introduction to XML (eXtensible Markup Language) and how it is used in Lawmaker. You can also view the slides directly using this link:
https://docs.google.com/presentation/d/1cpAYakAaHvxiDPYYzlR_LrWFDpKf8FZZDu6jJaZQLO0/edithttps://docs.google.com/presentation/d/1cpAYakAaHvxiDPYYzlR_LrWFDpKf8FZZDu6jJaZQLO0/edit?usp=sharing