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