Usability issues for systems supporting requirements extraction from legal documents

Usability as ease of use and learnability, is critical for systems supporting requirements elicitation for regulatory compliance. The main problem is that these systems have to analyze documents in a specialized natural language, a task that is far from being completely automated. Usability issues are also related to a variety of other characteristics of such systems. Reasons why an early adoption of usability practices is desirable and beneficial in their development are described. Main lessons learned in developing and applying a complex framework for requirements elicitation from regulatory documents are presented to illustrate some of the most relevant usability concerns.