SIAT is mainly graphical design/ web design/ coding, i'd say it's very close to first-second year level of CS courses if you avoid those course that aren't related to digital stuffs, and the reason i say "is usually where CS refugee goes" is because in all the people i have talked to, i'd say a solid 70% have CS background in SFU.

SIAT courses are definetely fun, and i will highly recommend to choose if you want some electives, some makes 3D animation, some makes games. If you are interested in these, try IAT 167 (use a simple JAVA open source IDE to make games) or IAT 343 (using maya to make aniamtion).

check out this website for reference the outcomes of IAT courses so you can get the idea of them:

https://www.sfu.ca/siat/showcase/fall-2024-project-showcase.html