@inproceedings{RE-2005-Simmons,
	author        = "Erik Simmons",
	booktitle     = "{Proceedings of the 13th International Requirements Engineering Conference}",
	doi           = "10.1109/RE.2005.73",
	isbn          = "0-7695-2425-7",
	pages         = "403--410",
	publisher     = "{IEEE Computer Society}",
	title         = "{The Usage Model: A Structure for Richly Describing Product Usage during Design and Development}",
	year          = 2005,
}