It is not your English, there are fundamental flaws in what you explain. Maybe you should avoid trying to explain to others things you don't fully understand yourself.
Pooya87 sometimes seems to me that you are too kind to people around you, including newbies ... I just want to say that I just feel sorry for your time spent on answering this guy, since being guided only by logic, we can confidently say that he did not understand anything from what he published and, as a result, did not understand anything from your explanations.
In August 1991, NIST (Nation Institute of Standards and Technology) proposed the Digital Signature Algorithm (DSA) for their Digital Signature Standard (DSS).
DSA is an algorithm and DSS is a standard. The standard uses algorithms, and the algorithm is part of the standard.
But the NIST announcement has caused a lot of condemnation, and these condemnations are more political than academic. Many large software companies that have obtained patent licenses for the RSA algorithm have also stood up against DSS. They have invested a lot of money to implement the RSA algorithm, and they certainly don't want these funds to be lost.