Are ADX and DMI the same?

Are ADX and DMI interchangeable terms, or do they represent distinct concepts within the realm of technical analysis? I'm seeking clarification on whether these acronyms point to the same indicator or if they serve different purposes in assessing market trends and momentum. Understanding the nuances between ADX, the Average Directional Movement Index, and DMI, possibly referring to the Directional Movement Index itself or a variant thereof, is crucial for accurate analysis. Could you please elaborate on the similarities and differences, if any, between these two metrics?