During case interviews, interviewers are generally looking for the following skills:2
Candidates are often asked to estimate a specific number, often a commercial figure (such as market size or profitability) or determine action plans to remedy a business problem (such as low profitability or decreasing market share). Questions are generally ambiguous and require interviewees to ask questions or make assumptions to make a reasonable, supported argument to their solutions. Candidates are expected to demonstrate reasoning rather than to produce the exact answer.3
A case interview can also be conducted as a group exercise. Here several candidates are given some briefing materials on a business problem and asked to discuss and agree upon a solution. The interviewers normally sit around the exterior of the room as silent observers. They assess candidates' communication and interaction as well as analytical thinking and commercial awareness. Interviewers "red flag" candidates who try to dominate the conversation; consultants work in teams so it's important to be a team player.4
An example of a framework used by business analysts is:5
Maggie Lu, The Harvard Business School Guide to Careers in Management Consulting, 2002, page 21, ISBN 978-1-57851-581-3 /wiki/ISBN_(identifier) ↩
Wharton MBA Consulting Club, The Wharton MBA Case Interview Study Guide: Volume I, 1997, ISBN 978-1-58207-054-4 /wiki/ISBN_(identifier) ↩
Booz Allen Hamilton http://www.boozallen.co.uk/careers/case-study ↩
Marc Cosentino, Case in Point: Complete Case Interview Preparation, 2010, page 8, ISBN 978-0-9710158-5-2 /wiki/ISBN_(identifier) ↩
forbes (2012-01-31). "6 Tools Every Business Consultant Should Know | Harvard Professional Development | Harvard DCE". www.extension.harvard.edu. Retrieved 2017-01-24. https://www.extension.harvard.edu/professional-development/blog/6-tools-every-business-consultant-should-know ↩