I think that this would depend on the specific aspects of your project. What is the question(s) asking for, and what is the information provided (if applicable) regarding team members as relevant to your project? Essentially, team members can include those that you have mentioned, although they can also extend to different departments. Consider Question 21(a) from the 2022 IPT HSC exam:
Describe the advantages of forming a project team from various departments in an organisation when reviewing an existing system.
The sample answer provided is as follows:
A team built from members of different areas of a company such as HR, finance, marketing or IT allow for different perspectives, skills and approaches to be used by the team. For example, members of marketing will have a different understanding of the use of the existing system compared to members from finance.
As you can see, the nature and background of the team members can depend on the context of the project/scenario and/or the question being asked. In the case of this HSC question, notice that team members can be professionals not necessarily from an IT/IT-related background. The sample answer mentions team members who may come from HR, finance or marketing backgrounds. All of these are business-related backgrounds.
I hope this helps!
