Product Revenue Vs Service Revenue

This problem tests whether a candidate understands how different revenue streams affect the quality of a software company’s business model. Product revenue is usually associated with stronger economics because once the software is built, incremental sales can often be added with limited extra cost, which supports better margins and easier scaling. Service revenue, by contrast, tends to depend more on people and time, so it is typically less scalable and less profitable. Interviewers ask this kind of question to see if candidates can think beyond topline growth and assess margin profile, scalability, and overall business quality, all of which matter when valuing software companies.