Sungdeok (Steve) Cha is a Professor at Korea University in Seoul, Korea and a former professor at Korea Advanced Institute of Science and Technology (KAIST) in Daejeon. Prior to joining KAIST, he was a member of technical staff at the Aerospace Corporation and the Hughes Aircraft Company working on various software engineering and computer security projects. His main research topics include software safety, requirements engineering, and computer security. He is also a member of editorial boards for several software engineering journals. Richard N. Taylor is a Professor Emeritus of Information and Computer Sciences at the University of California, Irvine, USA. His research interests are centered on design and software architectures, especially focusing on decentralized systems. In 2017 he received the ACM SIGSOFT Impact Paper Award (with Roy Fielding).  In 2009 he was recognized with the ACM SIGSOFT Outstanding Research Award, in 2008 theICSE Most Influential Paper award, and in 2005 the ACM SIGSOFT Distinguished Service Award. In 1998 he was named an ACM Fellow for his contributions to research in software engineering and software environments. Kyochul Kang is an Executive Vice President at Samsung Electronics as well as a Professor Emeritus at POSTECH in Korea. Prior to joining POSTECH, he conducted software engineering research at Bell Communications Research, Bell Labs, and SEI. His research career in software engineering began in the 1970s as a member of the PSL/PSA team, which developed the first-ever requirements modelling and analysis technology. He is well known for his FODA (Feature-Oriented Domain Analysis) work at SEI and is an expert on software reuse and product line engineering.