[Joe_Deegan]

I am in a similar situation as you being the lone eLearning developer/Instructional designer in my organization and echo what Jenise say's about all that other stuff that gets in the way.

If I have the luxury of completely focusing on an eLearning project I can get it done in 1-2 weeks. But that's just the development and doesn't take review and revisions into consideration. A nightmare example I am living through now is due to several process changes. I was brought into the project early because Execs wanted to roll out a process change quickly therefore I needed to pump out an eLearning class in a hurry. The problem with that is the process had not been refined and several process issues were exposed after I had already finished the first draft of the eLearning course. Because the process changed I had to make heavy revisions to the eLearning course adding a lot of time to the overall development time. This is where that underestimating and over delivering comes into play.

Another concern to take into consideration is if you will be managing a Learning Management System or some kind of website hosting all of the courses you will be developing. In my case, I am the lone eLearning guy so that includes the administration responsibilities of LMS administration which definitely interferes with content development time.

Long story short, 1-2 weeks if it is the only thing you are working on. Double that if you have to keep up with the corporate rat race. Good luck! It sounds like you have a great opportunity to improve the efficiency of your organization.