How to pursue a DSc degree? I read that a "Doctor of Science" is awarded for research well beyond a usual PhD degree awarded for a dissertation work and includes a portfolio of high quality papers in interdisciplinary fields.
Does this mean that one cannot actively pursue this degree and one can never be certain of how close one has come to a DSc? How does career planning at such a stage look like?
I own a PhD, but it is the first time I've heard of "Doctor of Science". In the former Warsaw pact countries and some Western European countries there are two level of doctorate. First is the "canonical" PhD and second is called something like "habilitation" which allows you to have PhD students and conduct your teaching in an independent manner.

I see two reasons you asked the question:


in your country, for a certain reason (for example, having own PhD students) you require this title. In this case, ask your Department of Education what are the exact requirements for this. If they legally require such a title, they also provide a clear path to get it.
you look for a title. Simple put, the simplest approach in this case would be to identify universities offering this title, join a program and earn it.


The way you asked the question makes me thing you fall in the second bucket. Probably the following story will help you rethink your course of action: Legend has it that one of the founding fathers of Shotokan Karate-do is asking a student at a seminar what is her most ardent desire. The student replies that she wants to have the black belt. The master replied that he can easily confer the black belt, but would that make her a better karateka?