The impacts of this system on the organization. An evaluation of this system. A description of how the system was built or acquired. A discussion of how this system is used for competitive advantage. When you choose a topic for your paper, you need to consider the person you interview.
Some interviewees are end users of the systems.
They are likely to know a lot about topic 7 and 8 and less about topics 5 and 6. In contrast some interviewees will work in Information Systems departments. They are likely to know more about topics 5 and 6 and less about 7 and 8. Either point of view is acceptable for your paper. You will also need to consider that most organizations have multiple information systems.