TY - CPAPER AU - Remo Ferrari AU - Nazim Madhavji AU - Oliver Sudmann AU - Christian Henke AU - Jens Geisler AU - Wilhelm Schafer BT - 18th IEEE International Requirements Engineering Conference CY - Sydney DO - 10.1109/RE.2010.19 PP - Sydney PY - 2010 SP - 79 EP - 88 T2 - 18th IEEE International Requirements Engineering Conference TI - Requirements Engineering Decisions in the Context of an Existing Architecture: A Case Study of a Prototypical Project ER -