\input zb-basic \input zb-ioport \iteman{io-port 06095029} \itemau{Liu, Yingbo; Wang, Feng; Deng, Hui; Fu, Xiaodong; Ji, Kaifan} \itemti{A study on modeling of lightweight scientific workflow systems using XML schema.} \itemso{Sheng, Quan Z. (ed.) et al., Web technologies and applications. 14th Asia-Pacific web conference, APWeb 2012, Kunming, China, April 11--13, 2012. Proceedings. Berlin: Springer (ISBN 978-3-642-29252-1/pbk). Lecture Notes in Computer Science 7235, 743-750 (2012).} \itemab Summary: Scientific workflow systems are typically describe coordinations involved in data processing via a workflow definition language. However, current specific workflow definition languages, even adopted by current mature scientific workflow systems, are too complex and enormous for non-professionals. In this paper, we mainly discuss how to design a workflow definition language using XML schema to suit a lightweight workflow system in a specific domain such as astronomy and astroinformatics. The prototype system shows that a simple but intuitive workflow definition language can simplify the modeling procedure and make end users easier and more accurate to implement their research tasks in e-Science activities. \itemrv{~} \itemcc{} \itemut{lightweight scientific workflow; workflow description language; modeling} \itemli{doi:10.1007/978-3-642-29253-8\_72} \end