I cannot comment on the difficulty of Enterprise Computing compared to Information Processes and Technology. Similarly, it is not possible to gain insight regarding the Enterprise Computing year 12 course because the HSC class of 2025 has yet to start it, although perhaps current students would be able to share their thoughts about the year 11 course.
In terms of the difference between the two, it would be reasonable to assume that there is a significant difference. IPT was assessed for a long time, during which some of the technologies that it covered became out-of-date, as well as some new technologies being released that the subject did not cover. As such, Enterprise Computing constitutes an update in that regard. The topics themselves are different across both the year 11 course and the year 12 course. A significant content-related change is the removal of option topics. In the IPT HSC course, there were 4 option topics (known as option strands), two of which must be studied in addition to the three mandatory topics. There were also changes made to the HSC exam, mainly:
- A computer-based exam compared to the normal paper-based IPT HSC exam.
- The duration of the exam has been shortened to 2 hours and 30 minutes including 10 minutes reading time, as opposed to an IPT HSC exam, which is 3 hours long and includes 5 minutes reading time.
There are other changes, which you can view on the under "What has changed?".
Overall, Enterprise Computing seems interesting. You can definitely take it in year 11 and based on your experience, you can decide whether you wish to keep it or drop it.
I hope this helps!