Opening book files without opening the book

[Timothy DeWees]

I am currently working with a couple of other people who are new to
framemaker. I've been using frame for a bit over two years on a near daily
basis. I use the practice of always opening a frame book before editing
individual files within that book. My concern is that by working in an
individual file without opening the book, that errors such as broken
cross-references, re-mapping of text insets, or other errors may occur. Is
my concern founded, or is it ok to edit individual book files without ever
opening the book?  If anyone has a link to a discussion of this topic, that
would be particularly helpful.