Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

How is CQL related to the MADiE tool? Must eCQM developers use the MADiE?

CQL writes text documents using the CQL library. The MADiE provides the structure to make writing easy beyond having a text document. It helps with available operations and acceptable attributes from the QDM elements. Use of the MADiE is required for eCQMs used in CMS programs.