What is ens compliance?

Could you possibly explain to me in detail what exactly is ENS compliance? I've heard the term mentioned a few times in relation to cryptocurrency and blockchain technology, but I'm still quite hazy on the specifics. Is it a regulatory framework? A set of standards that need to be met? Or something else entirely? I'm particularly interested in understanding its significance in the larger context of digital asset management and transactions. Could you please clarify this for me?