Its is complitly different. I know DRAKON and it is very different what I see in the article. Also DRAKON is very different from other visual diagraming systems

Its is complitly different. I know DRAKON and it is very different what I see in the article. Also DRAKON is very different from other visual diagraming systems. DRAKON is open but system that is actually used in space programming (if i remember correctly is called Grafit-Floks, https://books.google.com/books?id=0g9kDAAAQBAJ&pg=PA198&lpg=PA198&dq=Grafit-Floks&source=bl&ots=F42sHt0oS2&sig=ACfU3U1Qpw7gnRGP760novl0x2OwcsXMvQ&hl=en&sa=X&ved=2ahUKEwiYtp-rwKzoAhWEiOAKHbBuCdEQ6AEwC3oECAoQAQ#v=onepage&q=Grafit-Floks&f=false https://books.google.com/books?id=0g9kDAAAQBAJ&pg=PA198&lpg=...) is not open and as far as I know is not in market. If you are interested in DRAKON there is a forum.drakon.su which has english section and on that forum is made by inventor of DRAKON and he participated in discussion. DRAKON has also wikipedia page.