publications - Article-based PhD and advisor's (new) role?

My engineering university offers a relatively new option to do an article-based dissertation, where the primary research is submitted (and hopefully published) in several scientific journals (at my university it's 3). The dissertation is then shorter than a typical PhD, because it describes how the articles fit together to form the thesis, etc.

It's a relatively new idea (for engineering PhDs and for me), which I find interesting as an advisor because it engages PhD students more in the research experience (publishing). Also, it is theoretically more efficient for the advisor and student (as a co-author), since time and energy spent on revising could be more focused on getting publications, and not only on a big PhD dissertation that few people will ever read.

There are other advantages described here (not my university).

My question is not about whether it's good or bad, but how the role of an advisor on co-authored papers might change in such cases.

For example, when students write a traditional dissertation (masters or otherwise), they often struggle with communicating. Students grow and improve written communication and contents of the dissertation in an iterative and incremental process (draft revisions after feedback from the advisor).

In traditional grad-student co-authorship setting, I would take a more active role as an editor (as my advisor did when I was a PhD student) on a paper, mostly because of experience and to increase chances of getting an article published. Sometimes that role is minimal, if only a workshop or conference is targeted, since it might be easier to publish there.

But with an article-based PhD, it seems that the active approach in editing co-authored journal papers is essential, and in effect writing a big part of the dissertation for the student. I realize every case is different.

I'd be happy to know from experienced advisors in this setting to know if and how an advisor's role must change in article-based PhDs.

Answer

The system of article-based theses has been the norm in my field and university for as long as we have been in existence, although monographs are also accepted. We therefore lack experience with monographs, although I wrote my thesis as a monograph in the US system once upon a time.

The main differences, as I see it, between monograph and article writing is that with articles, you must reach a high level very early during your PhD study. With a monograph you can work on all of it until the very last moment. With an article-based thesis, articles must be planned and written up early on. I would say that it is both common and useful to have the first paper being mainly written by the advisor so that the student can learn from scratch in every part of the article write-up. Since the goal is to make independent researchers out of the PhD students it follows that the advisor involvement should gradually decrease over time. This is of course good in theory but difficult in practise. The point is, however, that it is important to get an early start with the writing and the structure of the work has to be such that it is clear that publishable results can emerge after the first or second year.

Article-based these need to be thought through so that papers can be produced. We let the advisor and student write up a time plan for the PhD work which also outlines the basic research work and the resulting papers. The plan is filed by the subject responsible. This plan is followed up annually so that changes can be discussed between advisor, student and subject responsible. This is useful since everyone needs to think things through on a regular basis.