A Family of Experiments to Analyze Differences among Unstructured Interviews, JAD and Prototyping

Next we describe each variable: -Team: Id of the team (experimental unit) -Number of functional requirements -Number of non-functional requirements -Number of functional requirements + non-functional requirements -Time to prepare the interview -Time in the interview -Time to prepare the requirements document -Overall time -Diversity -Completeness -Quality -Number of questions -Number of relevant questions -Efficiency (quality time ratio) -Treatment: among unstructured interviews, JAD and Prototyping -Replication: id of each repication