Designing online courses with course updates in mind — from Faculty Focus by Patti Shank, PhD, CPT in Online Education
Online courses are rarely “done.” Over time, things change, including the curriculum and content (because of changes in the field and changes to available content) and the technologies (ways that the content can be delivered and tools for interacting with it and with others in the courses, including you).
Bottom line:
Just like initial course development, updating courses can be quite a lot of work. You can reduce the hassles and work (but not eliminate them) by designing your online courses with updating them in mind. That is, design so that updating is built into the process, not tacked on as an afterthought.