International audienceThe workshop aims to bring the research communities of domain-specific language engineering and domain- specific aspect design together. In the previous successful editions held at GPCE'06/OOPSLA'06 and AOSD'07 we approached domain-specific aspect languages both from a design and a language implementation point of view. New for this edition is that we explicitly invited contributions of work on adding domain-specific extensions (DSXs) to general-purpose aspect languages (GPALs)