Elon is an intermediate business analyst who is going to be involved into discovery phase on client's side. His 4-days trip schedule is full of meetings with different stakeholders in the Boston office. A product that Elon will help to build should make his client's HR department life easier. Elon was told that his client has over 25 senior HR specialists in his department. Help Elon to select the most recommended technique for his elicitation in this case.