Yes it is the QE scheme by Andersen
Our professor actually wrote a book few years ago that focuses on option pricing, short rate model, credit risk and risk measures. So we are basically using the methodology and concepts taught in this book for our project.
In that book he has dedicated a chapter to SV model and in the section for Heston model he briefly introduced the QE scheme and contrasted its calibration result with the normal truncation scheme
Of course we have also searched for the original paper and tried to understand the full picture, and after reading it through we think that it should be relatively easy to implement and in a sense flexible too since the flow of QE scheme naturally copes with the pricing of American option (or other path dependent stuff), so we think we will be using this for our path simulation
(p.s. and to be honest we don't have much time to drill into other simulation scheme so most probably we'll settle for QE scheme )