What Questions do Requirements Engineers Ask?

Requirements Engineering (RE) is comprised of various tasks related to discovering, documenting, and maintaining different kinds of requirements. To accomplish these tasks, a Requirements Engineer or Business Analyst needs to retrieve and combine information from multiple sources such as use case models, interview scripts, and business rules. However, collecting and analyzing all the required data can be tedious and the resulting data is often incomplete with inadequate trace links. Analyzing real-world queries can shed light on the questions requirements professionals would like to ask and the artifacts needed to support such questions. We therefore conducted an online survey with requirements professionals in the IT industry. Our analysis included 29 survey responses and a total of 159 natural language queries. Using open coding and grounded theory, we analyzed and grouped these queries into 9 different query purposes and 54 sub-purposes, and also identified frequently used artifacts. The results from the survey could help project-level planners identify important questions, proactively instrument their environments with supporting tools, and strategically collect data that is needed to answer the queries of interest to their project.