Guiding the process of requirements elicitation through scenario analysis: Results of an empirical study

The CREWS 21.903 long term research ESPRIT project has proposed several strategies to support requirements elicitation through textual scenarios analysis. In the CREWS-L'Ecritoire approach, guidelines are proposed to systematise these strategies. To evaluate the effectiveness of the CREWS-L'Ecritoire requirements elicitation guidelines, an empirical study was undertaken. This paper presents an overview of the experiment results. These indicate that: (i) subjects apply the CREWS-L'Ecritoire guiding rules with different rates of efficiency, (ii) in average, all the guiding rules improve the subjects' ability to elicit correct requirements, and (iii) each of the guiding rule has a different rate of efficiency.