Knowledge transfer, communication, and shared understanding between project stakeholders are important factors in requirements deveiopment and in the information systems development process. Nevertheless, the impact and analysis of language and linguistic communication during requirements development is still an open issue. In our research, we claim that requirements development depends on the ability to deal with language and communication issues in practice and reach shared understanding of requirements. We propose the concept of language quality as a suitable means for analyzing the emergence of coherent and meaningful requirements. By applying the thereby developed dimensions of language quality to a real information systems development project, we are able to obtain practice-grounded propositions to further evaluate the consequences of different actions on the interaction and communication process of stakeholders in requirements development.