%0 Journal Article %T Towards a Theory of Requirements Elicitation: Acceptability Condition for the Relative Validity of Requirements %A Ivan Jureta %A John Mylopoulos %A Stephane Faulkner %J Computer Science %D 2009 %I arXiv %X A requirements engineering artifact is valid relative to the stakeholders of the system-to-be if they agree on the content of that artifact. Checking relative validity involves a discussion between the stakeholders and the requirements engineer. This paper proposes (i) a language for the representation of information exchanged in a discussion about the relative validity of an artifact; (ii) the acceptability condition, which, when it verifies in a discussion captured in the proposed language, signals that the relative validity holds for the discussed artifact and for the participants in the discussion; and (iii) reasoning procedures to automatically check the acceptability condition in a discussions captured by the proposed language. %U http://arxiv.org/abs/0902.0924v1