When I started my career in tech writing, it was the age of the writer. Tech writers tended to work independently on a single book for months at a time. Better, for many, they not only got to write the book, they got to design it and shepherd it through the publication process. At the end of the process a book arrived from the printer and you got to keep a copy — I still have several. It was, from beginning to end, your work, your product, your book.
Fewer of us get to work that way today. We now live in the age of the content manager. Writers contribute chunks of text to content management systems that spit them out in various combinations. There is no end-to-end ownership. Not everyone works like this, but it is an increasingly dominant model, and the model which just about every pundit in the industry is urging companies to adopt.