It will take two to three years if it is fast, and even more than five years if it is slow. The above answer is incorrect. First, your lecturer selection and lecturer training are a system, and there are many supporting contents that need time. The selection criteria of your lecturers need to be considered, the training of lecturers takes time, the consolidation of the curriculum system and the production of courses need at least one year, and it needs to be adjusted and revised in practical work.

In an enterprise, no one will give you time to do this, especially the training of lecturers. Time is difficult to coordinate, so it is very fast to build a perfect training system in two years.

Of course, I am targeting at large enterprises, with a large number of people.