I'm an intern working on an intranet for a small company that may potentially expand in size. The company has a few departments with an engineering department that has different fields. They also have project sites.
I was planning on structuring the site as follows:
Home(site collection)
-Projects (site collection)
--project x(subsite)
--project y(subsite)
-Departments(site collection)
--HR(subsite)
--Finance(subsite)
--Engineering(site collection)
--- Engineering field x(subsite)
--- Engineering field y(subsite)
Is it possible to have site collections inside other site collections? Is there a better way to structure this?