Software product lines are emerging as an important new paradigm for so- ware development. Product lines are enabling organizations to achieve impressive time-to-market gains and cost reductions. In 1997, we at the Software Engine- ing Institute (SEI) launched a Product Line Practice Initiative. Our vision was that product line development would be a low-risk, high-return proposition for the entire software engineering community. It was our hope from the beginning that there would eventually be su?cient interest to hold a conference. The First Software Product Line Conference (SPLC1) was the...