Douglas, Dan

<jats:title>Abstract</jats:title> <jats:p>Dan Douglas' contribution to the study of Language for Specific Purposes (LSP) and Language Assessment needs special mentioning, not only for his work on the novel exploration of certain specific registers, like the language of aviation, but also for his groundbreaking work on assessment in LSP. His work on this area focused on analyzing the development of assessment criteria for LSP and on exploring ways to derive these assessment criteria from the sources used to establish LSP test content and methods, that is, the analyses of specific purpose language use situations.</jats:p>