Extensions of existing modeling languages

/in /by

System Modelling Languages are extensions of existing modeling languages that are intended to help Systems Engineers (of all kinds) better model the complex systems that they are building. Write a few paragraphs answering the following questions: In an Information Technology Environment (Software, Hardware, etc.), which of these modelling languages is most useful? Why? How might any of the modeling languages discussed be applied to improve Systems Engineering in an IT environment?