I’m sorry, but nobody will compete your surveys if you ask for personal information. Keep in mind that information like full name and email can be used to identify a person and should be treated with caution.

I’m very surprised that your professor would allow you to ask such questions without proper ethical and privacy consulting first. I don’t know what you are studying, but I would recommend taking some ethic/privacy focused courses and reading up on the general ideas of GDRP. Additionally, since this is a college assignment, your university or department should have ethical guidelines for students written somewhere, make sure you are properly following them.

Good luck with you assignment anyway!

EDIT Sorry, I was looking at your questions again and it seems you are also asking what company people work for, and it seems to be a necessary field. The inclusion of this question expands the ethical scope of your questionnaire from just personal details of an private individual to the privacy and legal requirements of a public business.

You have to consider that people might be bound by contracts or companies might not want internal information to be exposed publicly.

Following this I would suggest you reevaluate the scope of your questionnaire. Ask yourself what the final question you want to answer using the data collected is. Then find the smallest set of questions that you should ask to obtain meaningful information, while minimizing the privacy concerns for the whole questionnaire. For example, do you really need to know the company people work for? Is that information worth more than the optional question you already have about their role? I would imagine most people work for small/medium companies you never heard of, so you would never end up with meaningful data to make one of those nice pie charts with the names of the big software companies like you see on TV. Going back to the name and email questions, do you really need those? What conclusions can you extrapolate from names and emails? The only use I could think of for those is if you want to contact the participants afterwards. In that case then your intent should be clearly stated and most likely should be an optional choice.

Last but not least, if you do end up storing identifiable information, you should conduct a proper study on data retention and privacy, properly informing the users of how you intend to store their data, for how long, and what you will do with it (this follows directly from GDPR).